19-55014101-A-G

Position:

chr19-55014101-A-G

Variant summary

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

The NM_001083899.2(GP6):c.1844T>C(p.Met615Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000076 in 671,292 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.000092 ( 1 hom., cov: 33)

Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

GP6
NM_001083899.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.330

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:

Genome browser will be placed here

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=0.07221693).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GP6	NM_001083899.2 linkuse as main transcript	c.1844T>C	p.Met615Thr	missense_variant	8/8	ENST00000310373.7	NP_001077368.2
GP6-AS1	XR_001754012.3 linkuse as main transcript	n.121+7637A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GP6	ENST00000310373.7 linkuse as main transcript	c.1844T>C	p.Met615Thr	missense_variant	8/8	1	NM_001083899.2	ENSP00000308782		Q9HCN6-3
GP6-AS1	ENST00000593060.5 linkuse as main transcript	n.155+7637A>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000921

AC:

AN:

151970

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000773

AC:

AN:

129418

Hom.:

AF XY:

0.00

AC XY:

AN XY:

70530

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000953

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000712

AC:

AN:

519322

Hom.:

Cov.:

AF XY:

0.0000603

AC XY:

AN XY:

281808

show subpopulations

Gnomad4 AFR exome

AF:

0.0000652

Gnomad4 AMR exome

AF:

0.0000297

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000102

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000336

Gnomad4 NFE exome

AF:

0.0000874

Gnomad4 OTH exome

AF:

0.000174

GnomAD4 genome

AF:

0.0000921

AC:

AN:

151970

Hom.:

Cov.:

AF XY:

0.0000943

AC XY:

AN XY:

74230

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000756

Hom.:

Bravo

AF:

0.0000416

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 26, 2022

This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 615 of the GP6 protein (p.Met615Thr). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with GP6-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.67

CADD

Benign

7.1

DANN

Benign

0.42

Eigen

Benign

-0.99

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.016

M_CAP

Benign

0.013

MetaRNN

Benign

0.072

MetaSVM

Benign

-0.94

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Uncertain

0.59

PROVEAN

Benign

0.0

REVEL

Benign

0.025

Sift

Pathogenic

0.0

Polyphen

0.092

Vest4

0.31

MutPred

0.32

Loss of sheet (P = 0.0817);

MVP

0.088

MPC

0.22

ClinPred

0.13

GERP RS

0.23

gMVP

0.030

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