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Table 2 Details of seven predicted missense variants which were validated by Sanger sequencing

From: Exome sequencing characterizes the somatic mutation spectrum of early serrated lesions in a patient with serrated polyposis syndrome (SPS)

Gene (NCBI Ref Seq)

Mutation

Tumour ID

Functions, pathways

SIFT / MT / PolyPhen-2

CADDa

z-Scoreb

%ExAC_RVISc

TCGA / COSMIC

gnomAD

final assessment patho-genicity

ABI3BP (NM_015429.3)

c.2036A > T; p.K679 M

T71

prevention of tumorigenesis, proliferation of replicative senescence

D / DC / PD

24.6

−0.39

89.49

no report

no report

likely pathogenic

CALD1 (NM_033140.3)

c.332G > A; p.R111Q

T69

potent repressor of cancer cell invasion; Schwann cell migration

D / P / N/A

26.2

0.24

62.76

no report

2.481e-5

VUS

CATSPERB (NM_024764.2)

c.2309C > A; p.P770H

T71

spermatogenesis, cell differentiation, multicellular organism development

D / DC / PD

24.6

0.93

4.00

no report

no report

likely pathogenic

CCBP2 (NM_001296.4)

c.184A > T; p.S62C

T72

G-protein coupled receptor signaling pathway

T / P / B

0.006

−0.32

53.24

no report

no report

likely benign

COL8A1 NM_020351.3)

c.373G > A; p.E125K

T71

migration and proliferation of vascular smooth muscle cells

T / DC / B

13.1

0.59

10,36

no report

no report

VUS

DNAI1 (NM_012144.2)

c.1156G > A; p.V386I

T71

epithelial cilium movement, cell projection organization

T / P / B

11.3

−0.22

68.31

no report / 1 reportd

2.832e-5

likely benign

VGLL2 (NM_182645.2)

c.132C > A; p.S44R

T70

muscle differentiation and development of skeletal muscles

T / DC / PD

22.4

1.47

67.74

no report

no report

VUS

  1. B benign, D damaging, DC disease causing, MT MutationTaster, N/A not applicable, P polymorphism, PD probably damaging, T tolerated, VUS variant of uncertain significance; acutoff on deleteriousness >15; bpositive Z scores indicate increased constraint (intolerance to variation), negative score implied that the gene shows more variants than expected; c values represent percentiles of %ExAC_RVIS scores. High values refer to tolerant genes while low values refer to intolerant genes; d in liver hepatocellular carcinoma