Variant 19-55014296-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001083899.2(GP6):c.1649A>G(p.Tyr550Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000613 in 1,305,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/18 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: 0.0000061 ( 0 hom. )

Consequence

GP6
NM_001083899.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.268

Variant links:

Genes affected

GP6 (HGNC:14388): (glycoprotein VI platelet) This gene encodes a platelet membrane glycoprotein of the immunoglobulin superfamily. The encoded protein is a receptor for collagen and plays a critical role in collagen-induced platelet aggregation and thrombus formation. The encoded protein forms a complex with the Fc receptor gamma-chain that initiates the platelet activation signaling cascade upon collagen binding. Mutations in this gene are a cause of platelet-type bleeding disorder-11 (BDPLT11). Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

GP6 links:

GP6-AS1 (HGNC:55305): (GP6 antisense RNA 1)

GP6-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13459322).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GP6	NM_001083899.2 link	c.1649A>G	p.Tyr550Cys	missense_variant	8/8	ENST00000310373.7	NP_001077368.2	Q9HCN6-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GP6	ENST00000310373.7 link	c.1649A>G	p.Tyr550Cys	missense_variant	8/8	1	NM_001083899.2	ENSP00000308782.3		Q9HCN6-3
GP6	ENST00000417454 link	c.*625A>G		3_prime_UTR_variant	8/8	1		ENSP00000394922.1		Q9HCN6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000165

AC:

AN:

242560

Hom.:

AF XY:

0.0000303

AC XY:

AN XY:

132112

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000613

AC:

AN:

1305420

Hom.:

Cov.:

AF XY:

0.0000122

AC XY:

AN XY:

657572

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:

0.0000961

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000248

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 12, 2021

The c.1649A>G (p.Y550C) alteration is located in exon 8 (coding exon 8) of the GP6 gene. This alteration results from a A to G substitution at nucleotide position 1649, causing the tyrosine (Y) at amino acid position 550 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

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.68

CADD

Benign

DANN

Benign

0.93

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.77

FATHMM_MKL

Benign

0.016

M_CAP

Benign

0.025

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.88

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-0.23

REVEL

Benign

0.020

Sift

Pathogenic

0.0

Polyphen

0.97

Vest4

0.28

MutPred

0.32

Gain of loop (P = 0.0045);

MVP

0.20

MPC

0.68

ClinPred

0.23

GERP RS

0.23

gMVP

0.013

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