Variant 1-177933242-T-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_033127.4(SEC16B):c.2795A>G(p.Glu932Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000208 in 1,440,602 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SEC16B
NM_033127.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.62

Variant links:

Genes affected

SEC16B (HGNC:30301): (SEC16 homolog B, endoplasmic reticulum export factor) SEC16B is a mammalian homolog of S. cerevisiae Sec16 that is required for organization of transitional endoplasmic reticulum (ER) sites and protein export (Bhattacharyya and Glick, 2007 [PubMed 17192411]).[supplied by OMIM, Jun 2009]

SEC16B links:

CRYZL2P-SEC16B (HGNC:53757): (CRYZL2P-SEC16B readthrough) This locus represents naturally occurring read-through transcription between the neighboring CRYZL2P (crystallin zeta like 2 pseudogene) and SEC16B (SEC16 homolog B, endoplasmic reticulum export factor) genes on chromosome 1. The readthrough transcript encodes a protein that shares sequence identity with the downstream gene product. [provided by RefSeq, Oct 2017]

CRYZL2P-SEC16B links:

SEC16B (HGNC:):

SEC16B links:

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=0.062410355).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SEC16B	NM_033127.4 linkuse as main transcript	c.2795A>G	p.Glu932Gly	missense_variant	22/26	ENST00000308284.11	NP_149118.2	Q96JE7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SEC16B	ENST00000308284.11 linkuse as main transcript	c.2795A>G	p.Glu932Gly	missense_variant	22/26	1	NM_033127.4	ENSP00000308339.6		Q96JE7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000208

AC:

AN:

1440602

Hom.:

Cov.:

AF XY:

0.00000280

AC XY:

AN XY:

714208

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000272

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000468

Hom.:

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 submitter

clinical testing

Ambry Genetics

Mar 01, 2024

The c.2795A>G (p.E932G) alteration is located in exon 22 (coding exon 21) of the SEC16B gene. This alteration results from a A to G substitution at nucleotide position 2795, causing the glutamic acid (E) at amino acid position 932 to be replaced by a glycine (G). 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

0.084

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.66

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.050

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.56

LIST_S2

Benign

0.57

M_CAP

Benign

0.0082

MetaRNN

Benign

0.062

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

PrimateAI

Benign

0.41

PROVEAN

Pathogenic

-4.8

REVEL

Benign

0.10

Sift

Uncertain

0.010

Sift4G

Benign

0.071

Polyphen

0.0050

Vest4

0.14

MutPred

0.19

Gain of catalytic residue at P928 (P = 0.0924);

MVP

0.19

MPC

0.24

ClinPred

0.89

GERP RS

4.3

Varity_R

0.21

gMVP

0.24

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over