4-82824576-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001077207.4(SEC31A):ā€‹c.3390C>Gā€‹(p.Cys1130Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,170 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)

Consequence

SEC31A
NM_001077207.4 missense

Scores

7
8
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.37
Variant links:
Genes affected
SEC31A (HGNC:17052): (SEC31 homolog A, COPII coat complex component) The protein encoded by this gene shares similarity with the yeast Sec31 protein, and is a component of the outer layer of the coat protein complex II (COPII). The encoded protein is involved in vesicle budding from the endoplasmic reticulum (ER) and contains multiple WD repeats near the N-terminus and a proline-rich region in the C-terminal half. It associates with the protein encoded by the SEC13 homolog, nuclear pore and COPII coat complex component (SEC13), and is required for ER-Golgi transport. Monoubiquitylation of this protein by CUL3-KLHL12 was found to regulate the size of COPII coats to accommodate unusually shaped cargo. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.866

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SEC31ANM_001077207.4 linkuse as main transcriptc.3390C>G p.Cys1130Trp missense_variant 25/27 ENST00000395310.7 NP_001070675.1 O94979-1A1LU61

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SEC31AENST00000395310.7 linkuse as main transcriptc.3390C>G p.Cys1130Trp missense_variant 25/271 NM_001077207.4 ENSP00000378721.2 O94979-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
GnomAD4 exome
Cov.:
30
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Bravo
AF:
0.00000756

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 GeneticsNov 06, 2023The c.3390C>G (p.C1130W) alteration is located in exon 25 (coding exon 24) of the SEC31A gene. This alteration results from a C to G substitution at nucleotide position 3390, causing the cysteine (C) at amino acid position 1130 to be replaced by a tryptophan (W). 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
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.12
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.44
.;.;T;.;.;.;T;T;.;.;T;.;.
Eigen
Benign
0.088
Eigen_PC
Benign
0.090
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.94
D;.;.;D;.;D;D;D;D;D;.;D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.87
D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Benign
-0.36
T
MutationAssessor
Uncertain
2.8
.;.;M;.;.;.;M;.;.;.;M;.;.
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-9.8
D;D;D;D;D;D;D;D;D;D;D;D;D
REVEL
Uncertain
0.45
Sift
Pathogenic
0.0
D;D;D;D;D;D;D;D;D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D;D;D;D;D;D;D;D;D
Polyphen
1.0
D;D;D;.;D;D;D;.;D;D;D;.;.
Vest4
0.92
MVP
0.50
MPC
0.78
ClinPred
1.0
D
GERP RS
3.0
Varity_R
0.93
gMVP
0.82

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: rs1724118032; hg19: chr4-83745729; API