Supplementary data Protein kinase C (PKC) isozymes and cancer Jeong-Hun Kang TABLE S1: Target protein substrates for PKCs and their phosphorylation sites. PKC isozymes a Target protein substrates Phosphorylation sites Supplementary references Adducin (α-adducin) Ser-716 and Ser-726 [1] Adducin (β-adducin) Ser-703 and Ser-713 [1] PKCs α-helical head domain of desmin Ser-12, Ser-29, Ser-38, and Ser-56 [2] PKCs α2A-adrenergic receptor Ser-232 [3] PKCs α3A integrin Ser-1042 [4] PKCs α4 subunit of α4β2 neuronal nicotinic Thr-532/Ser-550 (in vitro/in vivo) [5, 6] PKCs receptors PKCs α6A integrin subunit Ser-1041 [7, 8] PKCα α6-tubulin Ser-165 [9] PKCs Alzheimer Ser-655 [10, 11] [12] β/A4 amyloid precursor protein PKCs Angiotensin II receptor (AT 1A) Ser-331, Ser-338, and Ser-348 PKCs Annexin I (also known as calpactin II, Thr-24, p35, or lipocortine I) Thr-41 (major phosphorylation Ser-27, Ser-28, and [13, 14] site, Ser-27 and Thr-41) PKCα, βΙ, and Annexin II (also known as calpactin I, βII p36, or lipocortine cPKCs Annexin IV (also known as endonexin I Ser-25 [15, 16] Thr-6 [17] II) or p33/40) cPKCs Avian retrovirus matrix protein Ser-68 and Ser-106 [18] PKCθ and ε Bad (Bcl-associated death protein) Ser-112 [19] Ser-112, Ser-136, and Ser-155 [20] Ser-64 [21] PKCι PKCs basic fibroblast growth factor (also known as bFGF, FGF2, or FGF-β) 1 PKCα Bcl-2 Ser-70 [22] PKCδ Bcl-2 associated athanogene 3 (BAG3) Ser-187 [23] PKCα β-catenin Ser-33, Ser-37, and Ser-45 [24] PKCs β2-adrenergic receptor Ser-261, Ser-262, Ser-344, and [25, 26] Ser-345 PKCs β4 integrin subunit Ser-1360 [27] PKCα β4 integrin subunit Ser-1360 and Ser-1364 [28] PKCs BK Ser-695 and Ser-1151 [29] channel (large Ca2+-activated potassium channel) PKCε Borna disease virus P-protein Ser-26 and Ser-28 [30] PKCs Bradykinin B2 receptor Ser-346 [31] PKCs Canonical transient receptor potential Ser-712 [32] TRPC5 Thr-972 [33] TRPC6A Ser-748 [34] TRPC6B Ser-714 [34] Ser-448 [35] Ser-273 and Ser-302/Ser-265 and [36, 37] channel subtype 3 (TRPC3) PKCδ TRPC6 PKCs Cardiac PKCs myosin-binding protein C (cMyBP-c) (also known as MYBPC3) Ser-300 (human/chicken) Ca2+/calmodulin-dependent Thr-286 [38] protein kinases II (CaM kinases II) PKCs CD33 (known as Siglec-3) Ser-307 [39] PKCs cGMP-dependent protein kinase (PKG or Thr-58 [40] Ser-58, Ser-59, and Ser-60 for [41] cGK) 1α PKCs Chaperone or modulatory protein 14-3-3 14-3-3ζ, 14-3-3η, and 14-3-3β, respectively cPKCs Choline acetyltransferase Thr-255, Ser-346, Ser-347, [42] Ser-440, and Ser-476 (nPKCs phosphorylate and Ser-440 aPKCs and Ser-476) PKCα c-kit-encoded tyrosine kinase receptor Ser-741 and Ser-746 [43] for stem cell factor (Kit/SCFR) PKCζ c-Myc Ser-373 [44] PKCε Connexin 43 (Cx43) (also known as gap Ser-262 [45] 2 PKCs junction α-1 protein) Ser-368 [46] CPI-17 (protein kinase C-dependent Thr-38 [47] inhibitory of 17 kDa) PKCs CTP synthetase 1 Ser-462 and Thr-455 [48] PKCγ Diacylglycerol kinase (DGK)γ accessory Ser-776 and Ser-779 [49] cPKCs domain Ser-22 and Ser-26 [50] DGKδ1 PH domain PKCα Dynamin I Ser-795 [51] PKCs Dystrophin Ser-136 and Ser-147 [52] PKCα ELAV-like protein HuR (HuA) Ser-158 and Ser-221 [53] PKCs Endothelial nitric oxide synthase (eNOS) Thr-495/497 (human/bovine) [54, 55] PKCs Epidermal receptor Thr-654 [56, 57] Epithelial cell transformaing sequence 2 Thr-328 [58] growth factor (EGFR) PKCι (Ect2) PKCδ ErbB3-binding protein 1 (EBP1) Ser-360 [59] PKCδ Eukaryotic elongation factor 1α (eEF-1α) Thr-431 [60] Ser-53 [61] Eukaryotic initiation factor-2β (eIF-2β) Ser-13 [62] eIF-2γ Thr-66 [63] eIF-4E Ser-209 and Thr-210 [64] Farnesoid X receptor (FXR) (also known Ser-135 and Ser-154 [65] PKCβΙ PKCs PKCα as NR1H4) PKCs Fms-interacting protein (FMIP) Ser-5 and Ser-6 [66] PKCs γ-aminobutyric acid type A (GABAA) Ser-409 [67] GABAA receptor β2 subunit Ser-410 [68] GABAA receptor γ2S subunit Ser-327 [67, 68] GABAA receptor γ2L subunit Ser-343 [67] PKCs GluA1 AMPA receptor subunit Ser-831 [69, 70] PKCα and γ Glutathione S-transferase P1 (GSTP1) Ser-42 and Ser-148 in the absence [71] receptor β1 subunit of glutathione PKCα, βI, βII, Ser-42 γ, δ, ε, η, and ζ presence of glutathione PKCα, βII, γ, δ, Glycogen synthase kinase (GSK)-3α Ser-21 and η 3 and Ser-148 in the [72] (PKCβII and δ are very weak) PKCα, βI, and γ GSK-3β PKCα, βI, and η Ser-9 [73] Ser-9 [72] PKCs G protein α subunit Gzα Ser-25 and Ser-27 [74] PKCα, δ, and ζ G protein-coupled receptor kinase-2 Ser-29 [75, 76] (GRK2) [also known as β-adrenergic receptor kinase (βARK)] PKCs GRK5 Ser-566 and Ser-572 [77] PKCα GTPase activating protein (GAP) p190A Ser-1221 and Thr-1226 [78] PKCs GTP-binding protein γ12 Ser-1 [79] PKCδ Heat-shock protein-25/27 Ser-15 and Ser-86 [80] PKCs Hepatitis B virus surface M protein Ser-28 [81] (C-termimally truncated middle size protein) PKCs Hepatitis C virus core protein Ser-116 [82] PKCs Hepatocyte growth factor receptor kinase Ser-985 [83] PKCζ Heterogeneous ribonuscleoprotein A1 Ser-199 + three unknown sites [84] High-mobility-group protein-1 Ser-44 and Ser-64 [85] PKCs Histamin H1 receptor (H1R) Ser-398 [86] PKCs Histone H1 Ser-103 [87] PKCβΙ Histone H3 Thr-6 [88] Ser-10 [89] cPKCs and PKCδ PKCε and β PKCs HIV-1 gag protein Ser-111 [90] PKCδ HuR Ser-318 [91] PKCε IKKβ Ser-177 [92] PKCs Insulin receptor Thr-1336 [93] PKCζ Insulin-responsive Ser-80 and Ser-91 [94] Ser-24, Ser-307, Ser-323, and [95, 96] aminopeptidase (IRAP) PKCδ Insulin PKCθ (human) Ser-574 [97] PKCβII IRS-1 (human) Ser-1101 [98] PKCδ IRS-1 (mouse) Ser-336 [99] PKCζ IRS-1 (rat) Ser 357 [100, 101] IRS-1 (rat) Ser-318, Ser-498, Ser-570, and receptor substrate-1 (IRS-1) 4 Ser-612 (major phosphorylation site, Ser-318) PKCι Interleukin-1 receptor-associated kinase Thr-66 [102] (IRAK) PKCs Interleukin-2 (IL-2) Ser-7 [103] PKCs Iron-responsive element-binding protein Ser-138 and Ser-711 [104] cPKCs Junctional adhesion molecule (JAM) Ser-284 [105] PKCε Keratin 8 Ser-8 and Ser-23 [106] PKCε Keratin 18 Ser-52 [107] PKCδ and ε Kv3.1b potassium channel Ser-503 [108] PKCα, βΙ, βII, L-type Ca2+ channel (also known as Ser-1674 [109] γ, δ, and θ voltage-dependent Cav1.2 α1c) Ser-1928 [109, 110] PKCs L-myc Ser 38 and Ser 42 [111] PKCs Lens fiber major intrinsic protein Ser-245 [112] PKCs Microtubule-associated Ser-1703, Ser-1711, and Ser-1728 [113] Ser-815 [114] Ser-110 and Ser-115 [115] Ser-8, Ser-11, Ser-46, Ser-55, [116] All PKCs Ca2+ channel or except PKCη protein 2 (MAP2) MAP4 cPKCs Myelin basic protein (MBP) PKCs Ser-110, Ser-132, Ser-151, and Ser-161 PKC βII Myristoylated alanin-rich kinase Ser-152 and Ser-156 (murine) [117] substrate (MARCKS) (also known as p80 and p87) PKCs Ser-45, Ser-80, Ser-99, and [118] Ser-152, Ser156, and Ser-163 [119] Ser-116 (bovine) (murine) PKCs NADPH oxidase activator 1 (NOXA1) Ser-172 [120] PKCζ NADPH oxidase component p47phox Ser-303, Ser-304, and Ser-315 [121] Ser-303, Ser-304, Ser-320, and [122] cPKCs Ser-328 PKCs Na,K-ATPase α-subunit 5 Ser-11 and Ser-18 [123] Ser-774 and Thr-938 [124] PKCs NAP-22 (also known as GAP-23 and Ser-6 [125] Ser-332 [126] Ser-36 [127, 128] Ser-41 (mammals)/Ser-42 (chick) [129, 130] pp46, or neuromodulin) Ser-209 [131] PKCα NG2 proteoglycan Thr-2256 [132] PKCs N-methyl-D-aspartate Ser-890 and Ser-896 [133, 134] BASP1) PKCθ NDRG2 (NDRG family member 2) PKCs Neurogranin (also known as p17, BICKS, or RC3 protein) PKCs Neuronal growth-associated protein B-50 (also known as GAP-43, protein F1, p57, (NMDA) receptor 1 subunit PKCβII Nonmuscle myosin heavy chain IIA Ser-1917 [135] PKCs Nonmuscle myosin heavy chain IIB Ser-362 and Ser-370/Ser-368 and [136] Ser-370 (βF47/αF47) cPKCs Nuclear lamin (also known as class V Ser-5 and Ser-525 [137] PKCβII intermediate filament) A Ser-395 and Ser-405 [138, 139] PKCα Nuclear lamin B Ser-572 [140] Ser-225 [141] Nuclear lamin C PKCs Nucleolar protein B23 (also known as nucleophosmin, numatrin, or nucleolar protein NO38) PKCη Occludin Thr-403 and Thr-404 [142] PKCs Opi1p Ser-26 [143] Par-1b kinase T595 [144, 145] aPKCs Par-3 Ser-827 [146] PKCs P-glycoprotein Ser-661 [147] PKCs Phosphatidylinositol Ser-166 [148] aPKCs (PKCζ and λ) transfer protein (PI-TP)α PKCs Phosphodiesterase (PDE) 3A Ser-312, Ser-428, Ser-438, [149] Ser-465, and Ser-492 PKCζ 3-phosphoglycerate dehydrogenase Ser-55, Thr-57, and Thr-78 [150] Ser-504 and Ser-532 [151] Ser-63 and Ser-68 [152] (PHGDH) PKCθ Phosphoinositide-dependent protein kinase-1 (PDK1) PKCs Phospholemman (PLM) (also known as 6 FXYD1) Thr-69 [153] PKCs Phospholipase D1 (PLD1) Ser-2, Thr-147, and Ser-561 [154] PKCδ Phospholipid scramblase Thr-161 [155] PKCs Phosphoprotein enriched in diabetes-15 Ser-104 [156] Ser-333 [157] Phosphoprotein of rabies virus Ser-162, Ser-210, and Ser-271 [158] PKCs pp60src Ser-12 [159, 160] PKCζ Profilin Ser-137 [161] PKCs Protamine P1 Ser-21 for human and Ser-29 for [162, 163] Protamine P2 (stallion) stallion (PED-15) [(also known as phosphoprotein enriched in astrocytes (PEA)-15] PKCζ Phosphoprotein of human parainfluenza virus type 3 PKCα, β, γ, and ζ PKCα Protein interacting with C kinase 1 Ser-32 [162] Ser-77 [164] Ser-744 and Ser-748/Ser-738 and [165, 166] (PICK1) PKCε and η/δ Protein kinase D PKCδ Ser-742 (mouse/human) Ser-412 (human) [167] PKCs Protein phosphatase inhibitor-1 Ser-65 [168] PKCs Protein tyrosine phosphate PTP-PEST Ser-39 and Ser-435 [169] PKCs p120-catenin Ser-873 [170] aPKCs (PKCζ) p21 Ser-146 [171] Ser-153 [172] Ser-371 (human) [173] PKCδ Ser-46 [174] PKCs Ser-360, [cyclin-dependent kinase (Cdk) inhibitor] PKCs PKCα p53 tumor suppressor Thr-365, Ser-370, [175, 176] Thr-371, Ser-372, and Thr-377 (mouse) PKCδ p73β (one of p53 homologs) Ser-289 PKCs Rad Ser-214, [177] Ser-257, Ser-273, [178] Ser-290, and Ser-299 PKCα Raf-1 Ser-497 and Ser-499 7 [179] PKCs Ser-497 and Ser-619 [180] Raf kinase inhibitory protein Ser-153 [181] PKCθ RasGRP2 (Ras guanine-releasing protein Ser-960 [182] PKCθ 2) RasGRP3 Thr-133 [183] Ras p21 (H-ras p21 and K-ras p21) Ser-177 for H-ras p21 and Ser [184-186] cPKCs and aPKCs PKCs 181 for K-ras p21 PKCs Receptor-like protein-tyrosine Ser-180 and Ser-204 [187] phosphatase (RPTP)α PKCζ RelA Ser-311 [188] PKCα Retinoic acid-related orphan nuclear Ser-35 [189] receptor (ROR)α cPKCs Ribosomal protein S6 Ser-5, Ser-9, and Ser-11 [190] PKCβΙ, βII, and Ribosomal protein S6 kinase (S6K) βII Ser-486 [191] PKCε RhoA Thr-127 and Ser-188 [192] PKCs Rhodopsin Ser-334 [193] PKCα RLIP76 Thr-297 [194] PKCs ROMK1 (also known as KIR1.1) Ser-4 and Ser-201 [195] PKCs Seminal vesicle protein IV Ser-58 [196] PKCs SM22 (also known as smooth muscle Ser-181 [197] δ protein 22 or transgelin) PKCs Smooth muscle caldesmon Ser-127, Ser-587, Ser-600, [198, 199] Ser-657, Ser-686, and Ser-726 (major phosphorylation site, Ser-587 and Ser-600) PKCs Smooth muscle myosin light chain Ser-1 and/or Ser-2 and Thr-9 [200, 201] PKCζ Sp1 (specificity protein 1) Ser-641 [202] PKCδ Stat3 (signal transducer and activator of Ser-727 [203] Ser-727 [204] Ser-187 [205] transcription 3) PKCε PKCs Synaptosomal-associated protein of 25 kDa (SNAP-25) PKCs Synaptotagmin Ι Thr-112 [206] PKCs Syndecan cytoplasmic domain Ser-197 and Ser-339 [207] 8 PKCs Tac antigen (interleukin 2 receptor) Ser-247 and Ser-250 [208] PKCs Talin (cytoskeletal protein) Thr-144, Thr-150, and Ser-425 [209] PKCs Tau (microtubule-associated proteins) Ser-293, Ser-305, and Ser-324 [210, 211] PKCs Transcription Ser-248 [212] Ser-800 [213] factor C/EBP (CCAAT/enhancer-binding protein) PKCε Transient receptor potential cation channel subfamily V member 1 (TRPV1) (known as capsaicin receptor or vanilloid receptor) PKCs Transferrin receptor Ser-24 [214] PKCδ Troponin I (TnI) (bovine) Ser-23/Ser-24 [215] Ser-43/45, Ser-78, and Thr-144 [216, 217] Thr-190, Thr-194, Thr-199, and [215] PKCs PKCα, δ, and ε Troponin T (TnT) (bovine) Thr-280 PKCs Thr-190, Thr-199, and Thr-280 [216] Thr-197, Ser-201, Thr-206, and [218] Thr-287 (functionally critical phosphorylation site, Thr-206) PKCε UDP-glucuronosyltransferase (UGT) Ser-432 [219] phosphoprotein Ser-157 [220] Ser-4, Ser-6, Ser-7, Ser-8, and [221, 222] 1A7 PKCs Vasodilator-stimulated (VASP) 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