Liang Tong Department of Biological Sciences 1212 Amsterdam Avenue Columbia University New York, NY 10027 Phone: (212) 854-5203, FAX: (212) 865-8246 e-mail: ltong@columbia.edu web: http://como.bio.columbia.edu/tong EXPERIENCE: September, 1997 — present Department of Biological Sciences, Columbia University, New York, New York Professor (July 04–present), Associate Professor (Sept. 97–June 04) • Structural and biochemical studies of enzymes involved in fatty acid metabolism (acetyl-CoA carboxylase, carnitine acyltransferase, AMP-activated protein kinase, pyruvate carboxylase, malic enzyme, acyl-CoA synthetase). • Structural and biochemical studies of pre-mRNA 3’-end processing. • Structural and biological studies of signal transduction by Toll/interleukin-1 receptor (TIR) domains. • Structural and biological studies of BEACH domains. • Structural and biochemical studies of human cytomegalovirus (HCMV) protease. • Development of new methods and computer programs for protein crystallography (program COMO). • Design, setup and operation of a structural biology laboratory for protein expression, purification, crystallization, and structure determination by X-ray crystallography. August, 1992 — August, 1997 Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut Principal Scientist (Jan. 96–Aug. 97), Senior Scientist (Aug. 92–Dec. 95) • Structural studies of human p38 MAP kinase in complex with highly potent and highly specific inhibitors, which revealed the structural basis for specificity of protein kinase inhibitors and a novel, allosteric binding site (the DFG-out conformation). • Structural studies of human cytomegalovirus (HCMV) protease free enzyme and inhibitor complex, which revealed a new polypeptide backbone fold for serine proteases and the induced-fit behavior of this protease. • Crystal structures of inhibitor complexes of various proteins (HIV-1 reverse transcriptase, HIV-2 protease, human renin, human thrombin, human p56lck SH2 domain, etc). • Development of new methods and computer programs for protein crystallography. (The Replace program suite, locked translation function, combined molecular replacement) • Crystal structures of small molecules (inhibitors, reaction intermediates). • Design, setup and operation of an X-ray diffraction laboratory for the structure determination of proteins and small molecules. August, 1989 — July, 1992 Purdue University, West Lafayette, Indiana Post-Doctoral Research Associate (Prof. Michael G. Rossmann) • Crystal structure of Sindbis virus capsid protein. The structure was determined by a combination of the multiple isomorphous replacement and the molecular replacement averaging techniques and revealed a chymotrypsin-like serine proteinase. • Development of new methods and computer programs for protein crystallography. (Locked rotation function (GLRF), translation function, Patterson map interpretation, real and reciprocal space molecular replacement averaging) August, 1984 — July, 1989 University of California, Berkeley Graduate Research Assistant (Prof. Sung-Hou Kim) 1 • Crystal structure determination, by the multiple isomorphous replacement method, and refinement of the catalytic domain of the human ras proto-oncogene product p21 and its oncogenic mutants. • Crystal structure refinement of the sweet-tasting protein monellin. Teaching Assistant • Freshman chemistry, graduate level introduction to X-ray crystallography and biophysical chemistry. January, 1983 — July, 1983 Peking University, Beijing, China Undergraduate Research Assistant (Prof. You-Qi Tang) • The characterization and crystal structure determination of the reaction product between (NH4)2MoS4 and the cupric salts of amino acids, and its relevance to Cu-Mo antagonism. EDUCATION: Ph. D., Biophysical Chemistry. December, 1989 University of California, Berkeley B. Sc., Chemistry. July, 1983 Peking University (Beijing, P.R. China) HONORS: Phi Beta Kappa, 1989; Sigma Xi, 1991. The Vice President’s Golden Achievement Award, 1996. Boehringer Ingelheim Pharmaceuticals, Inc. Ridgefield, CT. The first Boehringer Ingelheim worldwide Research and Development Award, 1997. EDITORIAL BOARD: J. Biol. Chem. (July 2006-) Protein and Peptide Letters, Editor for Eastern USA (Oct. 2006-) Journal of Structural and Functional Genomics (Jan. 2007-) Science in China B: Chemistry (Nov. 2008-) Faculty of 1000 (2004-2007) Biologics: Targets and Therapy (2007-) Protein and Peptide Letters (Jan. 2006-Oct. 2006) 2 PUBLICATIONS (135 papers + 24 reviews/book chapters): Peer-reviewed publications 1. X.-L. Jin, K.-L. Tang, L. Tong & Y.-Q. Tang. (1984). The reactions of ammonium thiomolybdate with amino-acid salts of copper(II) and the crystal structure of the product Cu2MoS4(py)4. Nature journal (China), 7, 314-316. 2. X.-L. Jin, K.-L. Tang, L. Tong & Y.-Q. Tang. (1986). The reaction between (NH4)2MoS4 and the cupric salts of amino acids and the crystal structure of the reaction product Cu2MoS4(py)4. Scientia Sinica (Chinese Edition), B11, 1136-1142. 3. A.M. de Vos, L. Tong, M.V. Milburn, P.M. Matias, J. Jancarik, S. Noguchi, S. Nishimura, K. Miura, E. Ohtsuka & S.-H. Kim. (1988). Three-dimensional structure of an oncogene protein: catalytic domain of human c-H-ras p21. Science, 239, 888-893. 4. R.M. Glaeser, L. Tong & S.-H. Kim. (1989). Three-dimensional reconstructions from incomplete data: Interpretability of density maps at "atomic" resolution.Ultramicroscopy, 27, 307-318. 5. L. Tong, M.V. Milburn, A.M. de Vos & S.-H. Kim. (1989). Structure of ras protein. Science, 245, 244-244. 6. M.V. Milburn, L. Tong, A.M. de Vos, A. Brünger, Z. Yamaizumi, S. Nishimura & S.-H. Kim. (1990). Molecular switch for signal transduction: Structural differences between active and inactive forms of protooncogenic ras proteins. Science, 247, 939-945. 7. A.T. Brünger, M.V. Milburn, L. Tong, A.M. de Vos, J. Jancarik, Z. Yamaizumi, S. Nishimura, E. Ohtsuka & S.-H. Kim. (1990). Crystal structure of an active form of RAS protein, a complex of a GTP analog and the HRAS p21 catalytic domain. Proc. Natl. Acad. Sci. U.S.A. 87, 4849-4853. 8. L. Tong & M.G. Rossmann. (1990). The locked rotation function. Acta Cryst. A46, 783-792. 9. L. Tong, A.M. de Vos, M.V. Milburn & S.-H. Kim. (1991). Crystal structures at 2.2Å resolution of the catalytic domains of normal ras protein and an oncogenic mutant complexed with GDP. J. Mol. Biol. 217, 503-516. 10. H.-K. Choi,* L. Tong,* W. Minor, P. Dumas, U. Boege, M.G. Rossmann & G. Wengler. (1991). Structure of Sindbis virus core protein reveals a chymotrypsin-like serine proteinase and the organization of the virion. Nature, 354, 37-43. (*–equal first authors; News and Views feature on p. 22-23) 11. M.G. Rossmann, R. McKenna, L. Tong, D. Xia, J.-B. Dai, H. Wu, H.-K. Choi & R.E. Lynch. (1992). Molecular replacement real space averaging. J. Appl. Cryst. 25, 166-180. 12. G.G. Privé, M.V. Milburn, L. Tong, A.M. de Vos, Z. Yamaizumi, S. Nishimura & S.-H. Kim. (1992). X-ray crystal structures of transforming p21 ras mutants suggest a transition-state stabilization mechanism for GTP hydrolysis. Proc. Natl. Acad. Sci. U.S.A. 89, 3649-3653. 13. L. Tong, H.-K. Choi, W. Minor & M.G. Rossmann. (1992). Structure determination of Sindbis virus core protein using isomorphous replacement and molecular replacement averaging between two crystal forms. Acta Cryst. A48, 430-442. 14. L. Tong, G. Wengler & M.G. Rossmann. (1993). Refined structure of Sindbis virus core protein and comparison with other chymotrypsin-like serine proteinase structures. J. Mol. Biol. 230, 228247. 15. L. Tong & M.G. Rossmann. (1993). Patterson-map interpretation with noncrystallographic symmetry. J. Appl. Cryst. 26, 15-21. 16. L. Tong, M. Cardozo, P.-J. Jones & J. Adams. (1993). Preliminary structural analysis of the mutations selected by non-nucleoside inhibitors of HIV-1 reverse transcriptase. Bioorg. & Med. Chem. Lett. 3, 721-726. 17. L. Tong, S. Pav, C. Pargellis, F. Dô, D. Lamarre & P.C. Anderson. (1993). Crystal structure of human immunodeficiency virus (HIV) type 2 protease in complex with a reduced amide inhibitor and comparison with HIV-1 protease structures. Proc. Natl. Acad. Sci. U.S.A. 90, 8387-8391. (Corresponding author) 3 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. K. Pal, M.L. Behnke & L. Tong. (1993). A general stereocontrolled synthesis of cis-2,3 disubstituted pyrrolidines and piperidines. Tetrahedron Lett. 34, 6205-6208. L. Tong. (1993). REPLACE, a suite of computer programs for molecular-replacement calculations. J. Appl. Cryst. 26, 748-751. J.R. Somoza, F. Jiang, L. Tong, C.-H. Kang, J.M. Cho & S.-H. Kim. (1993). Two crystal structures of a potently sweet protein. Natural monellin at 2.75Å resolution and single-chain monellin at 1.7Å resolution. J. Mol. Biol. 234, 390-404. S. Pav, K. Lubbe, F. Dô, D. Lamarre, C. Pargellis & L. Tong. (1994). Microtube batch protein crystallization: Applications to human immunodeficiency virus type 2 (HIV-2) protease and human renin. Proteins: Structure, Function, and Genetics, 20, 98-102. R.J. Snow, W.W. Bachovchin, R.W. Barton, S.J. Campbell, S.J. Coutts, D.M. Freeman, W.G. Gutheil, T.A. Kelly, C.A. Kennedy, D.A. Krolikowski, S.F. Leonard, C.A. Pargellis, L. Tong & J. Adams. (1994). Studies on proline boronic acid dipeptide inhibitors of dipeptidyl peptidase IV: Identification of a cyclic species containing a B-N bond. J. Amer. Chem. Soc. 116, 10860-10869. L. Tong, S. Pav, S. Mui, D. Lamarre, C. Yoakim, P. Beaulieu & P.C. Anderson. (1995). Crystal structures of HIV-2 protease in complex with inhibitors containing the hydroxyethylamine dipeptide isostere. Structure, 3, 33-40. (Corresponding author) L. Tong, S. Pav, D. Lamarre, L. Pilote, S. LaPlante, P.C. Anderson & G. Jung. (1995). High resolution crystal structures of recombinant human renin in complex with polyhydroxymonoamide inhibitors. J. Mol. Biol. 250, 211-222. (Corresponding author) L. Tong & M.G. Rossmann. (1995). Reciprocal space molecular replacement averaging. Acta Cryst. D51, 347-353. M.A. Cornea-Hasegan, Z. Zhang, R.E. Lynch, D.C. Marinescu, A. Hadfield, J.K. Muckelbauer, S. Munshi, L. Tong & M.G. Rossmann. (1995). Phase refinement and extension by means of non-crystallographic symmetry averaging using parallel computers. Acta Cryst. D51, 749-759. J.R. Proudfoot, K.D. Hargrave, S. Kapadia, U.R. Patel, K.G. Grozinger, D.W. McNeil, E. Cullen, M. Cardozo, L. Tong, T.A. Kelly, J. Rose, E. David, S.C. Mauldin, V.U. Fuchs, J. Vitous, M. Hoermann, J.M. Klunder, P. Raghavan, J.W. Skiles, P. Mui, D.D. Richman, J.L. Sullivan, C.-K. Shih, P.M. Grob & J. Adams. (1995). Novel non-nucleoside inhibitors of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase. 4. 2-Substituted dipyridodiazepinones as potent inhibitors of both wild-type and cysteine-181 HIV-1 reverse transcriptase enzymes. J. Med. Chem. 38, 4830-4838. L. Tong, S. Pav, D. Lamarre, B. Simoneau, P. Lavallée & G. Jung. (1995). Crystallographic studies on the binding modes of P2-P3 butanediamide renin inhibitors. J. Biol. Chem. 270, 29520-29524. (Corresponding author) J.K. Muckelbauer, M. Kremer, I. Minor, L. Tong, A. Zlotnick, J.E. Johnson & M.G. Rossmann. (1995). The structure determination of Coxsackievirus B3 to 3.5Å resolution. Acta Cryst. D51, 871-887. S.J. Harrop, J.R. Helliwell, T.C.M. Wan, A.J. Kalb (Gilboa), L. Tong & J. Yariv. (1996). Structure solution of a cubic crystal of Concanavalin A complexed with methyl -Dglucopyranoside. Acta Cryst. D52, 143-155. L. Tong, T.C. Warren, J. King, R. Betageri, J. Rose & S. Jakes. (1996). Crystal structures of the human p56lck SH2 domain in complex with two short phosphotyrosyl peptides at 1.0Å and 1.8Å resolution. J. Mol. Biol. 256, 601-610. (Corresponding author) L. Tong. (1996). The locked translation function and other applications of a Patterson correlation function. Acta Cryst. A52, 476-479. G.P. Roth, S.F. Leonard & L. Tong. (1996). Complementary selectivity in the alkylation of chiral bicyclic lactam enolates. J. Org. Chem. 61, 5710-5711. L. Tong, C. Qian, M.-J. Massariol, P.R. Bonneau, M.G. Cordingley & L. Lagacé. (1996). A new serine-protease fold revealed by the crystal structure of human cytomegalovirus protease. Nature, 383, 272-275. (Corresponding author) 4 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. 51. L. Tong. (1996). Combined molecular replacement. Acta Cryst. A52, 782-784. C. Momany, L.C. Kovari, A.J. Prongay, W. Keller, R.K. Gitti, B.M. Lee, A.E. Gorbalenya, L. Tong, J. McClure, L.S. Ehrlich, M.F. Summers, C. Carter & M. G. Rossmann. (1996). Crystal structure of dimeric HIV-1 capsid protein. Nature Struct. Biol. 3, 763-770. S.R. LaPlante, L. Tong, N. Aubry, S. Pav, G. Jung & P.C. Anderson. (1996). Several polyhydroxymonoamide renin inhibitors assume similar conformations in the unbound and reninbound states. Int. J. Pept. Protein Res. 48, 401-410. S. Pav, D.M. White, S. Rogers, K.M. Crane, C.L. Cywin, W. Davidson, J. Hopkins, M.L. Brown, C.A. Pargellis & L. Tong. (1997). Crystallization and preliminary crystallographic analysis of recombinant human p38 MAP kinase. Protein Science, 6, 242-245. G.P. Roth, M. Emmanuel & L. Tong. (1997). Resolution and assignment of the absolute stereochemistry of a trans-2,3-diarylpyrrolidine LTB4 inhibitor intermediate. Tetrahedron:Asymmetry, 8, 185-186. L. Tong, S. Pav, D.M. White, S. Rogers, K.M. Crane, C.L. Cywin, M.L. Brown & C.A. Pargellis. (1997). A highly specific inhibitor of human p38 MAP kinase binds in the ATP pocket. Nature Struct. Biol. 4, 311-316. (Corresponding author) P.L. Beaulieu, D. Wernic, A. Abraham, P.C. Anderson, T. Bogri, Y. Bousquet, G. Croteau, I. Guse, D. Lamarre, F. Liard, W. Paris, D. Thibeault, S. Pav & L. Tong. (1997). Potent HIV protease inhibitors containing a novel (hydroxyethyl)amide isostere. J. Med. Chem. 40, 21642176. L. Tong, C. Qian, W. Davidson, M.-J. Massariol, P.R. Bonneau, M.G. Cordingley & L. Lagacé. (1997). Experiences from the structure determination of human cytomegalovirus protease. Acta Cryst. D53, 682-690. (Corresponding author) L. Tong, T.C. Warren, S. Lukas, J. Schembri-King, R. Betageri, J.R. Proudfoot & S. Jakes. (1998). Carboxymethyl-phenylalanine as a replacement for phosphotyrosine in SH2 domain binding. J. Biol. Chem. 273, 20238-20242. (Corresponding author) L. Tong, C. Qian, M.-J. Massariol, R. Deziel, C. Yoakim & L. Lagacé. (1998). Conserved mode of peptidomimetic inhibition and substrate recognition of human cytomegalovirus protease. Nature Struct. Biol. 5, 819-826. (Corresponding author) Y.C. Park, V. Burkitt, A.R. Villa, L. Tong & H. Wu. (1999). Structural basis for self-association and receptor recognition of human TRAF-2. Nature, 398, 533-538. S.R. LaPlante, P.R. Bonneau, N. Aubry, D.R. Cameron, R. Deziel, C. Grand-Maitre, C. Plouffe, L. Tong & S. H. Kawai (1999). Characterization of the human cytomegalovirus protease as an induced-fit protease and the implications to the design of mechanism-based peptidyl inhibitors. J. Amer. Chem. Soc. 121, 2974-2986. P.L. Beaulieu, D.R. Cameron, J.-M. Ferland, J. Gauthier, E. Ghiro, J. Gillard, V. Gorys, M. Poirier, J. Rancourt, D. Wernic, M. Llinas-Brunet, R. Betageri, M. Cardozo, E.R. Hickey, R. Ingraham, S. Jakes, A. Kabcenell, T. Kirrane, S. Lukas, U. Patel, J. Proudfoot, R. Sharma, L. Tong & N. Moss. (1999). Ligands for the tyrosine kinase p56lck SH2 domain: Discovery of potent dipeptide derivatives with monocharged, nonhydrolyzable phosphate replacements. J. Med. Chem. 42, 1757-1766. G. Bhargava, S. Mui, S. Pav, H. Wu, G. Loeber & L. Tong. (1999). Preliminary crystallographic studies of human mitochondrial NAD(P)+-dependent malic enzyme. J. Struct. Biol. 127, 72-75. Y. Xu, G. Bhargava, S. Mui, S. Pav, G. Loeber, H. Wu & L. Tong. (1999). Crystal structure of human mitochondrial NAD(P)+-dependent malic enzyme: a new class of oxidative decarboxylases. Structure, 7, 877-889. C. Qian, L. Lagacé, M.-J. Massariol, C. Chabot, C. Yoakim, R. Deziel & L. Tong. (2000). A rational approach towards successful crystallization and crystal treatment of human cytomegalovirus protease and its inhibitor complex. Acta Cryst. D56, 175-180. Z. Yang, D.L. Floyd, G. Loeber & L. Tong. (2000). Structure of closed form of malic enzyme and implications for catalytic mechanism. Nature Struct. Biol. 7, 251-257. 5 52. 53. 54. 55. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. W.-Y. Chou, H.-P. Chang, C.-H. Huang, C.-C. Kuo, L. Tong & G.-G. Chang. (2000). Characterization of the functional role of Asp141, Asp194, and Asp464 residues in the Mn2+-Lmalate binding of pigeon liver malic enzyme. Protein Sci. 9, 242-251. P. L. Beaulieu, P. C. Anderson, D. R. Cameron, G. Croteau, V. Gorys, C. Grand-Maitre, D. Lamarre, F. Liard, W. Paris, L. Plamondon, F. Soucy, D. Thibeault, D. Wernic, C. Yoakim, S. Pav & L. Tong. (2000). 2’,6’-dimethylphenoxyacetyl: a new achiral high affinity P3-P2 ligand for hydroxyethylamine-based HIV protease inhibitors. J. Med. Chem. 43, 1094-1108. Z. Yang, R. Batra, D.L. Floyd, H.-C. Hung, G.-G. Chang & L. Tong. (2000). Potent and competitive inhibition of malic enzymes by lanthanide ions. Biochem. Biophys. Res. Commun. 274, 440-444. Y. Xu, X. Tao, B. Shen, T. Horng, R. Medzhitov, J.L. Manley & L. Tong. (2000). Structural basis for signal transduction by the Toll/Interleukin-1 receptor (TIR) domains. Nature, 408, 111-115. H.-C. Hung, G.-G. Chang, Z. Yang & L. Tong. (2000). Slow binding of metal ions to pigeon liver malic enzyme: a general case. Biochem. 39, 14095-14102. D. Shi, H. Morizono, X. Yu, L. Tong, N. M. Allewell & M. Tuchman. (2001). Crystallization and preliminary X-ray crystallographic studies of wild-type human ornithine transcarbamylase and two naturally occurring mutants at position 277. Acta Cryst. D57, 719-721. D. Shi, H. Morizono, X. Yu, L. Tong, N. M. Allewell & M. Tuchman. (2001). Human ornithine transcarbamylase: Crystallographic insights into substrate recognition and conformational changes. Biochem. J. 354, 501-509. S. Rozovsky, G. Jogl, L. Tong & A.E. McDermott. (2001). Solution-state NMR investigations of triosephosphate isomerase active site loop motion: Ligand release in relation to active site loop dynamics. J. Mol. Biol. 310, 271-280. R. Khayat, R. Batra, M.-J. Massariol, L. Lagace & L. Tong. (2001). Investigating the role of histidine157 in the catalytic activity of human cytomegalovirus protease. Biochem. 40, 63446351. K. Last-Barney, W. Davidson, M. Cardozo, L. L. Frye, C. A. Grygon, J. L. Hopkins, D. D. Jeanfavre, S. Pav, C. Qian, J. M. Stevenson, L. Tong, R. Zindell & T. A. Kelly. (2001). Binding site identification of hydantoin-based antagonists of LFA-1 using multidisciplinary technologies: Evidence for the allosteric inhibition of a protein-protein interaction. J. Amer. Chem. Soc. 123, 5643-5650. G. Jogl, X. Tao, Y. Xu & L. Tong. (2001). COMO: A program for combined molecular replacement. Acta Cryst. D57, 1127-1134. R. Batra, R. Khayat & L. Tong. (2001). Molecular mechanism for dimerization to regulate the catalytic activity of human cytomegalovirus protease. Nature Struct. Biol. 8, 810-817. M.A. Rishavy, Z. Yang, L. Tong & W.W. Cleland. (2001). Determination of the mechanism of human malic enzyme with natural and alternate dinucleotides by isotope effects. Arch. Biochem. Biophys. 396, 43-48. Z. Yang, H. Zhang, H.-C. Hung, C.-C. Kuo, L.-C. Tsai, H.S. Yuan, W.-Y. Chou, G.-G. Chang & L. Tong. (2002). Structural studies of pigeon cytosolic NADP+-dependent malic enzyme. Protein Science, 11, 332-341. C. Pargellis,* L. Tong,* L. Churchill, P.F. Cirillo, T. Gilmore, A.G. Graham, P.M. Grob, E.R. Hickey, N. Moss, S. Pav & J. Regan. (2002). Inhibition of p38 MAP kinase by utilizing a novel allosteric binding site. Nature Struct. Biol. 9, 268-272. (*–co-corresponding authors) J. Regan, S. Breitfelder, P. Cirillo, T. Gilmore, A.G. Graham, E. Hickey, B. Klaus, J. Madwed, M. Moriak, N. Moss, C. Pargellis, S. Pav, A. Proto, A. Swanimer, L. Tong & C. Torcellini. (2002). Pyrazole urea-based inhibitors of p38 MAP kinase: From lead compound to clinical candidate. J. Med. Chem. 45, 2994-3008. Z. Yang, C.W. Lanks & L. Tong. (2002). Molecular mechanism for the regulation of human mitochondrial NAD+-dependent malic enzyme by fumarate and ATP. Structure, 10, 951-960. 6 69. 70. 71. 72. 73. 74. 75. 76. 77. 78. 79. 80. 81. 82. 83. 84. 85. 86. R. Batra, D. Christendat, A. Edwards, C. Arrowsmith & L. Tong. (2002). Crystal structure of MTH169, a crucial component of phosphoribosylformylglycinamidine synthetase. Proteins, 49, 285-288. G. Jogl, Y. Shen, D. Gebauer, J. Li, K. Wiegmann, H. Kashkar, M. Kronke & L. Tong. (2002). Crystal structure of the BEACH domain reveals an unusual fold and extensive association with a novel PH domain. EMBO J. 21, 4785-4795. X. Tao, Y. Xu, Y. Zheng, A. Beg & L. Tong. (2002). An extensively-associated dimer in the structure of the C713S mutant of the TIR domain of human TLR2. Biochem. Biophys. Res. Commun. 299, 216-221. G. Jogl & L. Tong. (2003). Crystal structure of carnitine acetyltransferase and implications for the catalytic mechanism and fatty acid transport. Cell, 112, 113-122. G. Jogl, S. Rozovsky, A.E. McDermott & L. Tong. (2003). Optimal alignment for enzymatic proton transfer: Structure of the Michaelis complex of triosephosphate isomerase at 1.2-Å resolution. Proc. Natl. Acad. Sci. USA, 100, 50-55. R. Khayat, R. Batra, C. Qian, T. Halmos, M. Bailey & L. Tong. (2003). Structural and biochemical studies of inhibitor binding to human cytomegalovirus protease. Biochem. 42, 885891. Z. Yang, A. Savchenko, A. Yakunin, R. Zhang, A. Edwards, C. Arrowsmith & L. Tong. (2003). Aspartate dehydrogenase, a novel enzyme identified from structural and functional studies of TM1643. J. Biol. Chem. 278, 8804-8808. H. Zhang, Z. Yang,* Y. Shen* & L. Tong. (2003). Crystal structure of the carboxyltransferase domain of acetyl-coenzyme A carboxylase. Science, 299, 2064-2067. (*–equal second authors) X. Tao, R. Khayat, D. Christendat, A. Savchenko, X. Xu, S. Goldsmith-Fischman, B. Honig, A. Edwards, C.H. Arrowsmith & L. Tong. (2003). Crystal structures of MTH1187 and its yeast ortholog YBL001c. Proteins, 52, 478-480. X. Tao & L. Tong. (2003). Crystal structure of DJ-1, a protein associated with early-onset Parkinson’s disease. J. Biol. Chem. 278, 31372-31379. X. Tao, Z. Yang & L. Tong. (2003). Crystal structures of substrate complexes of malic enzyme and insights into the catalytic mechanism. Structure, 11, 1141-1150. F. Forouhar, J. Shen, R. Xiao, T.B. Acton, G.T. Montelione & L. Tong. (2003). Functional assignment based on structural analysis: Crystal structure of the yggJ protein (HI0303) of Haemophilus influenzae reveals an RNA methyltransferase with a deep trefoil knot. Proteins. 53, 329-332. S. Gobin, L. Thuillier, G. Jogl, A. Faye, L. Tong, M. Chi, J.-P. Bonnefont, J. Girard, C. PripBuus. (2003). Functional and structural basis of carnitine palmitoyltransferase 1A deficiency. J. Biol. Chem. 278, 50428-50434. R. Khayat, R. Batra, G.A. Bebernitz, M.W. Olson & L. Tong. (2004). Characterization of the monomer-dimer equilibrium of human cytomegalovirus protease by kinetic methods. Biochem. 43, 316-322. C.-W. Kuo, H.-C. Hung, L. Tong & G.-G. Chang. (2004). Metal-induced reversible structural interconversion of human mitochondrial NAD(P)+-dependent malic enzyme. Proteins, 54, 404411. G. Jogl & L. Tong. (2004). Crystal structure of yeast acetyl-CoA synthetase in complex with AMP. Biochem. 43, 1425-1431. F. Forouhar, I. Lee, J. Benach, K. Kulkarni, R. Xiao, T.B. Acton, G.T. Montelione & L. Tong. (2004). A novel NAD binding protein revealed by the crystal structure of 2,3-diketo-L-gulonate reductase (YiaK). J. Biol. Chem. 279, 13148-13155. H. Zhang, B. Tweel & L. Tong. (2004). Molecular basis for the inhibition of the carboxyltransferase domain of acetyl-coenzyme A carboxylase by haloxyfop and diclofop. Proc. Natl. Acad. Sci. USA, 101, 5910-5915. 7 87. 88. 89. 90. 91. 92. 93. 94. 95. 96. 97. 98. 99. 100. 101. 102. 103. 104. 105. W.-C. Hsu, H.-C. Hung, L. Tong & G.-G. Chang. (2004). Dual functional roles of ATP in the human mitochondrial malic enzyme. Biochem. 43, 7382-7390. Y.-H. Chen, M.-H. Li, Y. Zhang, L.-L. He, Y. Yamada, A. Fitzmaurice, Y. Shen, H. Zhang, L. Tong & J. Yang. (2004). Structural basis of 1- subunit interaction of voltage-gated Ca2+ channels. Nature, 429, 675-680. Y.-S. Hsiao, G. Jogl & L. Tong. (2004). Structural and biochemical studies of the substrate selectivity of carnitine acetyltransferase. J. Biol. Chem. 279, 31584-31589. J.A. Khan, E.K. Brint, L.A.J. O’Neill & L. Tong. (2004). Crystal structure of the Toll/interleukin1 receptor (TIR) domain of IL-1RAPL. J. Biol. Chem. 279, 31664-31670. H. Zhang, B. Tweel, J. Li & L. Tong. (2004). Crystal structure of the carboxyltransferase domain of acetyl-coenzyme A carboxylase in complex with CP-640186. Structure, 12, 1683-1691. R. Hering,* K.M. Strauss,* X. Tao,* A. Bauer, D. Woitalla, E.-M. Mietz, S. Petrovic, P. Bauer, W. Schaible, T. Müller, L. Schöls, C. Klein, D. Berg, P.T. Meyer, J.B. Schulz, B. Wollnik, L. Tong, R. Krüger & O. Riess. (2004). Novel homozygous E64D mutation in DJ1 in early onset Parkinson disease (PARK7). Hum. Mutat. 24, 321-329. (*–equal first author) D. Gebauer,* J. Li,* G. Jogl, Y. Shen, D.G. Myszka & L. Tong. (2004). Crystal structure of the PH-BEACH domains of human LRBA/BGL. Biochem. 43, 14873-14880. (*–equal first authors) W. Blankenfeldt, A.P. Kuzin, T. Skarina, Y. Korniyenko, L. Tong, P. Beyer, P. Janning, L.S. Thomashow & D.V. Mavrodi. (2004). Structure and function of the phenazine biosynthetic protein PhzF from Pseudomonas fluorescens. Proc. Natl. Acad. Sci. USA, 101, 16431-16436. Y. Shen, S.L. Volrath, S.C. Weatherly, T.D. Elich & L. Tong. (2004). A mechanism for the potent inhibition of eukaryotic acetyl coenzyme A carboxylase by soraphen A, a macrocyclic polyketide natural product. Mol. Cell, 16, 881-891. G. Jogl, Y.-S. Hsiao & L. Tong. (2005). Crystal structure of murine carnitine octanoyltransferase and molecular determinants of substrate selectivity. J. Biol. Chem. 280, 738-744. F. Forouhar, Y. Yang,$ D. Kumar,$ C. Yang, Y. Fridman, S.W. Park, Y. Chiang, T.B. Acton, G.T. Montelione, E. Pichersky,* D.F. Klessig* & L. Tong.* (2005). Structural and biochemical studies identify SABP2 as a methylsalicylate esterase and implicate it in plant innate immunity. Proc. Natl. Acad. Sci. USA, 102, 1773-1778. ($–equal second authors; *–co-corresponding authors) J.A. Khan, B.M. Dunn & L. Tong. (2005). Crystal structure of human Taspase1, a crucial protease regulating the function of MLL. Structure, 13, 1443-1452. M.J. Rudolph, G.A. Amodeo, Y. Bai & L. Tong. (2005). Crystal structure of the protein kinase domain of yeast AMP-activated protein kinase Snf1. Biochem. Biophys. Res. Commun. 337, 1224-1228 F. Forouhar, I.-S. Lee, J. Vujcic, S. Vujcic, J. Shen, S.M. Vorobiev, R. Xiao, T.B. Acton, G.T. Montelione, C.W. Porter & L. Tong. (2005). Structural and functional evidence for Bacillus subtilis PaiA as a novel N1-spermidine/spermine acetyltransferase (SSAT). J. Biol. Chem. 280, 40328-40336. S.C. Annedi, F. Biabani, E. Poduch, B.M. Mannargudi, K. Majumder, L. Wei, R. Khayat, L. Tong & L.P. Kotra. (2006). Engineering D-amino acid containing novel protease inhibitors using catalytic site architecture. Bioorg. Med. Chem. 14, 214-236. Y. Shen, C.-Y. Chou, G.-G. Chang & L. Tong. (2006). Is dimerization required for the catalytic activity of bacterial biotin carboxylase? Mol. Cell, 22, 807-818. J.A. Khan, X. Tao & L. Tong. (2006). Molecular basis for the inhibition of human NMPRTase, a novel target for anti-cancer agents. Nature Struct. Mol. Biol. 13, 582-588. (News & Views 563564) Y.-S. Hsiao, G. Jogl, V. Esser & L. Tong. (2006). Crystal structure of rat carnitine palmitoyltransferase II (CPT-II). Biochem. Biophys. Res. Commun. 346, 974-980. G. Soong, A. Muir, M.I. Gomez, J. Waks, B. Reddy, P. Planet, P.K. Singh, Y. Kanetko, M.C. Wolfgang, Y.-S. Hsiao, L. Tong & A. Prince. (2006). Bacterial neuraminidase facilitates mucosal infection by participating in biofilm production. J. Clin. Invest. 116, 2297-2305. 8 106. Y.-S. Hsiao, G. Jogl & L. Tong. (2006). Crystal structures of murine carnitine acetyltransferase in ternary complexes with its substrates. J. Biol. Chem. 281, 28480-28487. 107. C.R. Mandel, D. Gebauer, H. Zhang & L. Tong. (2006). A serendipitous discovery that in situ partial proteolysis is essential for the crystallization of yeast CPSF-100 (Ydh1p). Acta Cryst. F62, 1041-1045. 108. C.R. Mandel, S. Kaneko,* H. Zhang,* D. Gebauer, V. Vethantham, J.L. Manley & L. Tong. (2006). Polyadenylation factor CPSF-73 is the pre-mRNA 3’-end-processing endonuclease. Nature, 444, 953-956. (*–equal second authors) 109. F. Forouhar,* J.L.R. Anderson,* C.G. Mowat,* S.M. Vorobiev, A. Hussain, M. Abashidze, C. Bruckmann, S.J. Thackray, J. Seetharaman, T. Tucker, R. Xiao, L.-C. Ma, L. Zhao, T.B. Acton, G.T. Montelione,$ S.K. Chapman$ & L. Tong.$ (2007). Molecular insights into catalysis by tryptophan 2,3-dioxygenase. Proc. Natl. Acad. Sci. USA, 104, 473-478. (*–equal first authors, $– co-corresponding authors) 110. M.J. Rudolph, G.A. Amodeo, S.H. Iram, S.-P. Hong, G. Pirino, M. Carlson & L. Tong. (2007). Crystal structure of the Bateman2 domain of yeast Snf4: dimeric association and relevance for AMP binding. Structure, 15, 65-74. 111. S. Xiang, G. Usunow, G. Lange, M. Busch & L. Tong. (2007). Crystal structure of 1-deoxy-Dxylulose 5-phosphate synthase (DXS), a crucial enzyme for isoprenoids biosynthesis. J. Biol. Chem. 282, 2676-2682. 112. Y. Bai, T.C. Auperin & L. Tong. (2007). The use of in situ proteolysis in the crystallization of murine CstF-77. Acta Cryst. F63, 135-138. 113. S.M. Vorobiev, H. Neely, J. Seetharaman, L.-C. Ma, R. Xiao, T.B. Acton, G.T. Montelione & L. Tong. (2007). Crystal structure of AGR_C_4470p from Agrobacterium tumefaciens. Protein Sci. 16, 535-538. 114. Y. Bai, T.C. Auperin, C.-Y. Chou, G.-G. Chang, J.L. Manley & L. Tong. (2007). Crystal structure of murine CstF-77: Dimeric association and implications for polyadenylation of mRNA precursors. Mol. Cell, 25, 863-875. 115. X. Tao & L. Tong. (2007). Crystal structure of the MAP kinase binding domain and the catalytic domain of human MKP5. Protein Sci. 16, 880-886. 116. J. Li, X. Mao, L.Q. Dong, F. Liu & L. Tong. (2007). Crystal structures of the BAR-PH and PTB domains of human APPL1. Structure, 15, 525-533. 117. C. Yin,* J.A. Khan,* G.V.T. Swapna, A. Ertekin, R.M. Krug,$ L. Tong$ & G.T. Montelione.$ (2007). Conserved surface features form the double-stranded RNA-binding site of non-structural proteins 1 (NS1) from influenza A and B viruses. J. Biol. Chem. 282, 20584-20592. (*–equal first authors, $–co-corresponding authors) 118. J.A. Khan,* S. Xiang* & L. Tong. (2007). Crystal structure of human nicotinamide riboside kinase (NRK1). Structure, 15, 1005-1013. (*–equal first authors) 119. G.A. Amodeo,* M.J. Rudolph* & L. Tong. (2007). Crystal structure of the heterotrimer core of Saccharomyces cerevisiae AMPK homologue SNF1. Nature, 449, 492-495. (*–equal first authors) 120. J. Benach, L. Wang,* Y. Chen,* C.K. Ho, S. Lee, J. Seetharaman, R. Xiao, T.B. Acton, G.T. Montelione, H. Deng, R. Sun$ & L. Tong.$ (2007). Structural and functional studies of the abundant tegument protein ORF52 from murine gammaherpesvirus-68. J. Biol. Chem. 282, 31534-31541. (*–equal second authors, $–co-corresponding authors) 121. S. Xiang & L. Tong. (2008). Crystal structures of human and S. aureus pyruvate carboxylase and molecular insights into the carboxyltransfer reaction. Nature Struct. Mol. Biol. 15, 295-302. 122. S. Metzger, J. Rong, H.-P. Nguyen, A. Cape, J. Tomiuk, A. Soehn, P. Propping, Y. FreudenbergHua, J. Freudenberg, L. Tong, S.-H. Li, X.-J. Li & O. Riess. (2008). Huntingtin-associated protein-1 is a modifier of the age-at-onset of Huntington’s disease. Human Mol. Genet. 17, 1137-1146. 9 123. F. Forouhar, M. Abashidze, H. Xu, L.L. Grochowski, J. Seetharaman, M. Hussain, A. Kuzin, Y. Chen, W. Zhou, R. Xiao, T.B. Acton, G.T. Montelione, A. Galinier, R.H. White & L. Tong. (2008). Molecular insights into the biosynthesis of coenzyme F420. J. Biol. Chem. 283, 1183211840. 124. Y. Shen & L. Tong. (2008). Structural evidence for direct interactions between the BRCT domains of human BRCA1 and a phospho-peptide from human ACC1. Biochem. 47, 5767-5773. (Hot Article) 125. J.A. Vila, J.M. Aramini, P. Rossi, A. Kuzin, M. Su, J. Seetharaman, R. Xiao, L. Tong, G.T. Montelione & H.A. Scheraga. (2008). Quantum chemical 13C chemical shift calculations for protein NMR structure determination, refinement, and validation. Proc. Natl. Acad. Sci. USA, 105, 14389-14394. 126. S.J. Thackray, C. Bruckmann, J.L.R. Anderson, L.P. Campbell, R. Xiao, L. Zhao, C.G. Mowat, F. Forouhar, L. Tong & S.K. Chapman. (2008). Histidine 55 of tryptophan 2,3-dioxygenase is not an active site base but regulates catalysis by controlling substrate binding. Biochem. 47, 1067710684. 127. Y.J. Huang, D. Hang, L.J. Lu, L. Tong, M.B. Gerstein & G.T. Montelione. (2008). Targeting the human cancer pathway protein interaction network by structural genomics. Mol. Cell. Proteomics, 7, 2048-2060. 128. S.M. Vorobiev, M. Su, J. Seetharaman, Y.J. Huang, C.X. Chen, M. Maglaqui, H. Janjua, M. Proudfoot, A. Yakunin, R. Xiao, T.B. Acton, G.T. Montelione & L. Tong. (2009). Crystal structure of human retinoblastoma binding protein 9 (RBBP9). Proteins, 74, 526-529. 129. N. Zhao, J. Guan, F. Forouhar, T.J. Tschaplinski, Z.-M. Cheng, L. Tong & F. Chen. (2009). Two poplar methyl salicylate esterases display comparable biochemical properties but divergent expression patterns. Phytochem. 70, 37-44. 130. S.-W. Park, P.-P. Liu, F. Forouhar, A.C. Vlot, L. Tong, K. Tietjen & D.F. Klessig. (2009). Use of a synthetic salicylic acid analog to investigate the roles of methyl salicylate and its esterases in plant disease resistance. J. Biol. Chem. 284, 7307-7317. 131. Y.-S. Hsiao, D. Parker, A.J. Ratner, A. Prince & L. Tong. (2009). Crystal structures of respiratory pathogen neuraminidases. Biochem. Biophys. Res. Commun. 380, 467-471. 132. C. Bertonati, M. Punta, M. Fischer, G. Yachdav, F. Forouhar, W. Zhou, A.P. Kuzin, J. Seetharaman, M. Abashidze, T.A. Ramelot, M.A. Kennedy, J.R. Cort, A. Belachew, J.F. Hunt, L. Tong, G.T. Montelione & B. Rost. (2009). Structural genomics reveals EVE as a new ASCH/PUA-related domain. Proteins, 75, 760-773. 133. S. Xiang, A. Cooper-Morgan, X. Jiao, M. Kiledjian, J.L. Manley & L. Tong. (2009). Structure and function of the 5’3’ exoribonuclease Rat1 and its activating partner Rai1. Nature, 458, 784-788. 134. C.-Y. Chou, L.P.C. Yu & L. Tong. (2009). Crystal structure of biotin carboxylase in complex with substrates and implications for its catalytic mechanism. J. Biol. Chem. 284, 11690-11697. 135. L.P.C. Yu, S. Xiang, G. Lasso, D. Gil, M. Valle & L. Tong. (2009). A symmetrical tetramer for S. aureus pyruvate carboxylase in complex with coenzyme A. Structure, in press Reviews, book chapters, and invited papers 1. A. M. de Vos, L. Tong, M. V. Milburn, P. M. Matias & S.-H. Kim. (1988). Plenum Publishing Corporation, New York. Three-dimensional structure of ras p21 proteins. The guanine-nucleotide binding proteins: common structural and functional properties, Proceedings of an EMBONATO-CEC Advanced Research Workshop 165, 27-34. 2. S.-H. Kim, A. M. de Vos, L. Tong, M. V. Milburn, P. M. Matias, J. Jancarik & S. Nishimura. (1988). ras Oncogene proteins: Three-dimensional structures, functional implications, and a 10 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. model for signal transducer. Cold Spring Harbor Symposia on Quantitative Biology, LIII, 273281. M. G. Rossmann, R. McKenna, L. Tong, D. Xia, J.-B. Dai, H. Wu, H.-K. Choi, D. Marinescu & R. E. Lynch. (1992). E. Dodson, S. Gover, and W. Wolf, eds. Science and Engineering Research Council, Daresbury. Molecular replacement real space averaging. Proc. of the CCP4 Study Weekend, 31 January - 1 February, 1992, 33-48. L. Tong & M. G. Rossmann. (1997). Rotation function calculations with GLRF program. Methods in Enzymology, 276, 594-611. H. Wu, Y. C. Park, H. Ye & L. Tong (1999). Structural studies of human TRAF-2. Cold Spring Harbor Symp. Quant. Biol. (Signaling and gene expression in the immune system). 64, 541-549. Z. Yang & L. Tong. (2000). Structural studies of a human malic enzyme. Protein and Peptide Lett. 7, 287-296. L. Tong. (2001). Translation functions. Chapter 13.3 of International Tables for Crystallography, Vol. F. Crystallography of Biological Macromolecules. M. G. Rossmann & E. Arnold Eds. Kluwer Academic Publishers, The Netherlands. L. Tong. (2001). How to take advantage of non-crystallographic symmetry in molecular replacement: The locked rotation and translation functions. Acta Cryst. D57, 1383-1389. R. Batra, R. Khayat & L. Tong. (2001). Structural studies of herpesvirus proteases. Protein and Peptide Lett. 8, 333-342. L. Tong. (2002). Viral proteases. Chemical Reviews, 102, 4609-4626. G.-G. Chang & L. Tong. (2003). Structure and function of malic enzymes, a new class of oxidative decarboxylases. Biochem. 42, 12721-12733. G. Jogl, Y.-S. Hsiao & L. Tong. (2004). Structure and function of carnitine acyltransferases. Ann. N.Y. Acad. Sci. 1033, 17-29. L. Tong. (2005). Toll/interleukin-1 receptors and innate immunity. in G. Waksman, M.G. Caparon & S. Hultgren, eds. Structural basis of bacterial pathogenesis. pp. 241-263. ASM Press, Washington, DC. L. Tong. (2005). Acetyl-coenzyme A carboxylase: Crucial metabolic enzyme and attractive target for drug discovery. Cell. Mol. Life Sci. 62, 1784-1803. L. Tong & H.J. Harwood Jr. (2006). Acetyl-coenzyme A carboxylases: versatile targets for drug discovery. J. Cell. Biochem. 99, 1476-1488 J.A. Khan, F. Forouhar, X. Tao & L. Tong. (2007). Nicotinamide adenine dinucleotide metabolism as attractive target for drug discovery. Expert Opin. Thera. Targets, 11, 695-705. C.R. Mandel & L. Tong. (2007). How to get all “A”s in polyadenylation. Structure, 15, 10241026. F. Forouhar, A. Kuzin, J. Seetharaman, I. Lee, W. Zhou, M. Abashidze, Y. Chen, W. Yong, H. Janjua, Y. Fang, D. Wang, K. Cunningham, R. Xiao, T.B. Acton, E. Pichersky, D.F. Klessig, C.W. Porter, G.T. Montelione, & L. Tong. (2007). Functional insights from structural genomics. J. Struct. Funct. Genomics, 8, 37-44. D.F. Klessig, D. Kumar, F. Forouhar, L. Tong, Y. Yang, E. Pichersky, G.T. Montelione, Y. Chen, S.W. Park, A.C. Vlot & V. Shulaev. (2007). Salicylic acid-binding protein (SABP) 2 and systemic acquired resistance. In F. Sanchez, C. Quinto, I. M. Lopez-Lara & O. Geiger, eds. Biology of Plant-Microbe Interactions, 5, 176-181. 11 20. 21. 22. 23. 24. Structural Genomics Consortium, China Structural Genomics Consortium, Northeast Structural Genomics Consortium, S. Gräslund, P. Nordlund, J. Weigelt, J. Bray, O. Gileadi, S. Knapp, U. Oppermann, C. Arrowsmith, R. Hui, J. Ming, S. dhe-Paganon, H.W. Park, A. Savchenko, A. Yee, A. Edwards, R. Vincentelli, C. Cambillau, R. Kim, S.H. Kim, Z. Rao, Y. Shi, T.C. Terwilliger, C.Y. Kim, L.W. Hung, G.S. Waldo, Y. Peleg, S. Albeck, T. Unger, O. Dym, J. Prilusky, J.L. Sussman, R.C. Stevens, S.A. Lesley, I.A. Wilson, A. Joachimiak, F. Collart, I. Dementieva, M.I. Donnelly, W.H. Eschenfeldt, Y. Kim, L. Stols, R. Wu, M. Zhou, S.K. Burley, J.S. Emtage, J.M. Sauder, D. Thompson, K. Bain, J. Luz, T. Gheyi, F. Zhang, S. Atwell, S.C. Almo, J.B. Bonanno, A. Fiser, S. Swaminathan, F.W. Studier, M.R. Chance, A. Sali, T.B. Acton, R. Xiao, L. Zhao, L.C. Ma, J.F. Hunt, L. Tong, K. Cunningham, M. Inouye, S. Anderson, H. Janjua, R. Shastry, C.K. Ho, D. Wang, H. Wang, M. Jiang, G.T. Montelione, D.I. Stuart, R.J. Owens, S. Daenke, A. Schütz, U. Heinemann, S. Yokoyama, K. Büssow & K.C. Gunsalus. (2008). Protein production and purification. Nature Methods, 5, 135-146. C.R. Mandel, Y. Bai & L. Tong. (2008). Protein factors in pre-mRNA 3’-end processing. Cell. Mol. Life Sci. 65, 1099-1122. L. Tong, E. Arnold & M.G. Rossmann. (2008). Patterson and molecular-replacement techniques. Chapter 2.3 of International Tables for Crystallography, Vol. B. U. Shmueli Ed. Kluwer Academic Publishers, The Netherlands. S.J. Thackray, C. Bruckmann, C.G. Mowat, F. Forouhar, S.K. Chapman & L. Tong. (2008). Indoleamine 2,3-dioxygenase and tryptophan 2,3-dioxygenase. Handbook of Metalloproteins. A. Messerschmidt Ed., John Wiley & Sons, Chichester, UK. X. Tao & L. Tong. (2009). Expression, purification and crystallization of Toll/Interleukin-1 Receptor (TIR) Domains. Methods Mol. Biol., Vol. 517, Chapter 6, pp. 81-88. C.E. McCoy & L.A.J. O’Neill Ed., Humana Press. 12