Supplemental Table 1. Article Title: Juvenile Myelomonocytic Leukemia Due to a Germline CBL Y371C Mutation: 35-Year Follow-up of a Large Family Journal Name: Human Genetics Author Names and Affiliations: Anand Pathak1, Alexander Pemov1, Mary Lou McMaster2, Ramita Dewan1, Sarangan Ravichandran3, Evgenia Pak4, Amalia Dutra4, Hyo Jung Lee5, Aurelie Vogt5, Xijun Zhang5, Meredith Yeager5, Stacie Anderson6, Martha Kirby6, NCI DCEG Cancer Genomics Research Laboratory, NCI DCEG Cancer Sequencing Working Group, Neil Caporaso2, Mark H. Greene1, Lynn Goldin2, Douglas R. Stewart1 1 Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA; 2 Genetic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA; 3 Frederick National Laboratory for Cancer Research; Simulation, Analysis, and Mathematical Modeling Group Advanced Biomedical Computing Center, Frederick, MD, USA; 4 Cytogenetic and Microscopy Core, Genetic Disease Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA; 5 Cancer Genomics Research Laboratory, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA; 6 Flow Cytometry Core, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA. NCI DCEG Cancer Sequencing Working Group: Bari Ballew, Stephen J. Chanock, Alisa M. Goldstein, Allan Hildesheim, Nan Hu, Maria Teresa Landi, Jennifer Loud, Phuong L. Mai, Lisa Mirabello, Lindsay Morton, Dilys Parry, Melissa Rotunno, Sharon A. Savage, Philip R. Taylor, Geoffrey S. Tobias, Margaret A. Tucker, Jeannette Wong, Xiaohong R. Yang, Guoqin Yu NCI DCEG Cancer Genomics Research Laboratory: Sara Bass, Joseph Boland, Laurie Burdette, Salma Chowdhury, Michael Cullen, Casey Dagnall, Herbert Higson, Amy A. Hutchinson, Kristine Jones, Sally Larson, Kerrie Lashley, Hyo Jung Lee, Wen Luo, Michael Malasky, Michelle Manning, Jason Mitchell, David Roberson, Aurelie Vogt, Mingyi Wang Key words: JMML, familial, CBL, germline mutation, whole-exome sequencing Correspondence to: DRS (9609 Medical Center Drive Rm 6E450, Bethesda, MD, 20892; Tel: 240-276-7238; Fax: 240-276-7836; drstewart@mail.nih.gov) Supplemental Table 1. World Health Organization Clinical Criteria for Juvenile Myelomonocytic Leukemia.* Laboratory Criteria Persistent peripheral blood monocytosis >1x109/L IV.2 1600/µL (9/2010); 1500/µL (3/2011); 1300/µL (11/2013) III.12 1904/µL (6/1993); 3800/µL (7/2014); 1,500/µL (9/2014) III.1 924/µL (2/1949); 820 (12/2012) Blasts are <20% in peripheral blood and bone marrow 2% peripheral blood, 8% bone marrow < 2% blasts bone marrow 2 % blasts peripheral blood No Philadelphia chromosome No Philadelphia chromosome No Philadelphia chromosome No Philadelphia chromosome Hemoglobin F increased for age 6.70% (>1.0% abnormal) No documentation of elevation No documentation of elevation Immature granulocytes in the peripheral blood Yes Yes Yes WBC count >10x109/L. Yes Yes Yes Clonal chromosomal abnormality (may be monosomy 7) No No No GM-CSF hypersensitivity of myeloid progenitors in vitro N/A N/A N/A Further Criteria * To meet diagnostic criteria, a patient must meet all three laboratory criteria and fulfill at least two further criteria. Table 2. In Silico Predictions of CBL Y371C Pathogenicity PREDICTION PROGRAM SCORE INTERPRETATION 0 Deleterious POLYPHEN 2 HumDiv 0.999 Probably Damaging POLYPHEN 2 HumVar 1.000 Probably Damaging MUTATION TASTER 0.999999 Disease Causing MUTATION ASSESSOR 2.35 Medium FATHMM--MISSENSE -4.09 Damaging FATHMM--CANCER -5.39 Cancer CADD SCALED C-SCORE 16.7 Between top 10% (10) and top 1% (20) SIFT