Table 3.

Characteristics of patients carrying P/LP heterozygous germ line variants in genes involved in autosomal recessive disorders

Patient IDAge/sexGerm line
gene mutation
VAF myeloidVAF germ lineCongenital S/DSomatic mutationCytogenetics (% abnormal metaphases)Hb g/dlANC, ×109/LPlt, ×109/LDiagnosisExtrahematologic phenotypeFamily history of cancer hem/solid
Mutated geneVAF
PV1410 70/M CSF3R p.(P146fs) 0.43 0.46 SCN JAK2
U2AF1
ZRSR2 
0.10
0.12
0.15 
Failed 11.6 1.10 290 MDS/MPN −/− 
PV1515 45/F FANCD1 (BRCA2) p.(Y2624C) 0.44 0.48 FA/HBOC WT  Failed 13.8 1.35 129 ICUS − −/− 
PV1949 25/M FANCD1 (BRCA2) p.(Y3226fs) 0.46 0.52 FA/HBOC WT  46XY 15.6 2.7 131 ICUS −/− 
PV2480 25/M DNAJC21 p.(Ter577fs) 0.53 0.50 SDS WT  46XY 13.2 0.57 151 ICUS −/− 
PV30044 50/M FANCD2 p.(P679fs) 0.48 0.45 FA DNMT3A 0.10 46XY 1.12 44 AML − +/− 
PV1174 38/F SBDS c.258+2T>C  0.40 0.48 SDS WT  46XX 14.6 1.8 144 ICUS − −/- 
PV1338 49/M SBDS c.258+2T>C  0.40 0.48 SDS ASXL1
NRAS
WT1
WT1 
0.43
0.04
0.36
0.03 
46XY 10.6 0.81 66 AML −/- 
PV2281 70/F SBDS c.258+2T>C  0.41 0.40 SDS TET2 0.38 46XX; del(5q) (60) 11.6 1.24 173 MDS del(5q) −/− 
PV2346 47/M SBDS c.258+2T>C  0.41 0.41 SDS PHF6
SRSF2 
0.93
0.47 
46XY 12.5 6.4 35 CCUS − −/− 
PV2360 47/M SBDS c.258+2T>C  0.40 0.40 SDS WT  46XY 12.8 2.5 209 ICUS − −/+ 
Patient IDAge/sexGerm line
gene mutation
VAF myeloidVAF germ lineCongenital S/DSomatic mutationCytogenetics (% abnormal metaphases)Hb g/dlANC, ×109/LPlt, ×109/LDiagnosisExtrahematologic phenotypeFamily history of cancer hem/solid
Mutated geneVAF
PV1410 70/M CSF3R p.(P146fs) 0.43 0.46 SCN JAK2
U2AF1
ZRSR2 
0.10
0.12
0.15 
Failed 11.6 1.10 290 MDS/MPN −/− 
PV1515 45/F FANCD1 (BRCA2) p.(Y2624C) 0.44 0.48 FA/HBOC WT  Failed 13.8 1.35 129 ICUS − −/− 
PV1949 25/M FANCD1 (BRCA2) p.(Y3226fs) 0.46 0.52 FA/HBOC WT  46XY 15.6 2.7 131 ICUS −/− 
PV2480 25/M DNAJC21 p.(Ter577fs) 0.53 0.50 SDS WT  46XY 13.2 0.57 151 ICUS −/− 
PV30044 50/M FANCD2 p.(P679fs) 0.48 0.45 FA DNMT3A 0.10 46XY 1.12 44 AML − +/− 
PV1174 38/F SBDS c.258+2T>C  0.40 0.48 SDS WT  46XX 14.6 1.8 144 ICUS − −/- 
PV1338 49/M SBDS c.258+2T>C  0.40 0.48 SDS ASXL1
NRAS
WT1
WT1 
0.43
0.04
0.36
0.03 
46XY 10.6 0.81 66 AML −/- 
PV2281 70/F SBDS c.258+2T>C  0.41 0.40 SDS TET2 0.38 46XX; del(5q) (60) 11.6 1.24 173 MDS del(5q) −/− 
PV2346 47/M SBDS c.258+2T>C  0.41 0.41 SDS PHF6
SRSF2 
0.93
0.47 
46XY 12.5 6.4 35 CCUS − −/− 
PV2360 47/M SBDS c.258+2T>C  0.40 0.40 SDS WT  46XY 12.8 2.5 209 ICUS − −/+ 

ANC, absolute neutrophil count; F, female; FA/HBOC, Fanconi anemia/hereditary breast and ovarian cancer syndrome; Hb, hemoglobin concentration; Hem, hematopoietic; M, male; MDS/MPN, MDS/myeloproliferative neoplasm; MDS del(5q), myelodysplastic syndrome with deletion of chromosome 5q; Plt, platelet count; SCN, severe congenital neutropenia; S/D, syndrome/disorder; SDS, Shwachman-Diamond syndrome; WT, wild-type; VAF, variant allele frequency.

Heterozygous CSF3R and FANCD1 (BRCA2) variants were described, associated with predisposition to hematologic malignancies.34-36 

Manual revision of the BAM files on the SBDS gene and its pseudogene SBDSP1 confirmed the absence of the variant p.(K62∗) in patients heterozygous for c.258+2T>C.

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