rs752745051

Positions:

• chr3-128055731-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP2 PP3 PP5

The NM_013336.4(SEC61A1):​c.200T>G​(p.Val67Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: SEC61A1 NM_013336.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 8.02

Genes affected

SEC61A1 (HGNC:18276): (SEC61 translocon subunit alpha 1) The protein encoded by this gene belongs to the SECY/SEC61- alpha family. It appears to play a crucial role in the insertion of secretory and membrane polypeptides into the endoplasmic reticulum. This protein found to be tightly associated with membrane-bound ribosomes, either directly or through adaptor proteins. This gene encodes an alpha subunit of the heteromeric SEC61 complex, which also contains beta and gamma subunits. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SEC61A1. . Gene score misZ 4.0608 (greater than the threshold 3.09). Trascript score misZ 4.9446 (greater than threshold 3.09). GenCC has associacion of gene with hyperuricemic nephropathy, familial juvenile type 4, SEC61A1 deficiency.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.79
• PP5: Variant 3-128055731-T-G is Pathogenic according to our data. Variant chr3-128055731-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 253147.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SEC61A1	NM_013336.4	c.200T>G	p.Val67Gly	missense_variant	4/12	ENST00000243253.8
SEC61A1	NM_001400328.1	c.218T>G	p.Val73Gly	missense_variant	4/12
SEC61A1	NM_001400329.1	c.41T>G	p.Val14Gly	missense_variant	3/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SEC61A1	ENST00000243253.8	c.200T>G	p.Val67Gly	missense_variant	4/12	1	NM_013336.4	P4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Hyperuricemic nephropathy, familial juvenile type 4 Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Feb 09, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Benign	0.10	T;D;T
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.97	D;D;D
M_CAP	Benign	0.027	D
MetaRNN	Pathogenic	0.79	D;D;D
MetaSVM	Uncertain	-0.23	T
MutationAssessor	Uncertain	2.1	.;M;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.85	D
PROVEAN	Pathogenic	-5.4	D;D;D
REVEL	Uncertain	0.43
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		0.49	.;P;.
Vest4		0.89
MutPred		0.49		.;Loss of stability (P = 0.0034);.;
MVP		0.81
MPC		1.8
ClinPred		0.99	D
GERP RS		4.8
Varity_R		0.92
gMVP		0.96

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

Other links and lift over

dbSNP: rs752745051; hg19: chr3-127774574;