10-100490128-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015490.4(SEC31B):​c.2845C>T​(p.Arg949Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000961 in 1,592,040 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000067 ( 1 hom. )

Consequence

SEC31B
NM_015490.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.42
Variant links:
Genes affected
SEC31B (HGNC:23197): (SEC31 homolog B, COPII coat complex component) This gene encodes a protein of unknown function. The protein has moderate similarity to rat VAP1 protein which is an endosomal membrane-associated protein, containing a putative Ca2+/calmodulin-dependent kinase II phosphorylation site. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.016599).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SEC31BNM_015490.4 linkuse as main transcriptc.2845C>T p.Arg949Cys missense_variant 21/26 ENST00000370345.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SEC31BENST00000370345.8 linkuse as main transcriptc.2845C>T p.Arg949Cys missense_variant 21/261 NM_015490.4 P1Q9NQW1-1

Frequencies

GnomAD3 genomes
AF:
0.000375
AC:
57
AN:
152138
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00135
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000109
AC:
25
AN:
229840
Hom.:
0
AF XY:
0.0000811
AC XY:
10
AN XY:
123278
show subpopulations
Gnomad AFR exome
AF:
0.00137
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000286
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000667
AC:
96
AN:
1439784
Hom.:
1
Cov.:
32
AF XY:
0.0000700
AC XY:
50
AN XY:
714386
show subpopulations
Gnomad4 AFR exome
AF:
0.00164
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000856
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000290
Gnomad4 OTH exome
AF:
0.0000505
GnomAD4 genome
AF:
0.000374
AC:
57
AN:
152256
Hom.:
0
Cov.:
32
AF XY:
0.000363
AC XY:
27
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00135
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.0000992
Hom.:
0
Bravo
AF:
0.000400
ESP6500AA
AF:
0.00113
AC:
5
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000115
AC:
14

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 09, 2021The c.2845C>T (p.R949C) alteration is located in exon 21 (coding exon 20) of the SEC31B gene. This alteration results from a C to T substitution at nucleotide position 2845, causing the arginine (R) at amino acid position 949 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
18
DANN
Benign
0.75
DEOGEN2
Benign
0.0031
T
Eigen
Benign
-0.80
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.099
N
LIST_S2
Benign
0.59
T
M_CAP
Benign
0.0095
T
MetaRNN
Benign
0.017
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.28
T
PROVEAN
Benign
-1.0
N
REVEL
Benign
0.048
Sift
Benign
0.16
T
Sift4G
Benign
0.18
T
Polyphen
0.54
P
Vest4
0.15
MVP
0.44
MPC
0.074
ClinPred
0.031
T
GERP RS
2.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.042
gMVP
0.31

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs146812157; hg19: chr10-102249885; COSMIC: COSV64843906; COSMIC: COSV64843906; API