7-23256945-G-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_002510.3(GPNMB):c.421G>T(p.Asp141Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000281 in 1,614,192 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0016 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

GPNMB
NM_002510.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 2.44

Variant links:

Genes affected

GPNMB (HGNC:4462): (glycoprotein nmb) The protein encoded by this gene is a type I transmembrane glycoprotein which shows homology to the pMEL17 precursor, a melanocyte-specific protein. GPNMB shows expression in the lowly metastatic human melanoma cell lines and xenografts but does not show expression in the highly metastatic cell lines. GPNMB may be involved in growth delay and reduction of metastatic potential. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

GPNMB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0037172139).

BP6

Variant 7-23256945-G-T is Benign according to our data. Variant chr7-23256945-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 733291.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00156 (237/152344) while in subpopulation AFR AF= 0.00541 (225/41580). AF 95% confidence interval is 0.00483. There are 1 homozygotes in gnomad4. There are 114 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPNMB	NM_002510.3 link	c.421G>T	p.Asp141Tyr	missense_variant	Exon 4 of 11	ENST00000258733.9	NP_002501.1	Q14956-2Q96F58A0A024RA55

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPNMB	ENST00000258733.9 link	c.421G>T	p.Asp141Tyr	missense_variant	Exon 4 of 11	1	NM_002510.3	ENSP00000258733.5		Q14956-2

Frequencies

GnomAD3 genomes

AF:

0.00155

AC:

236

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00540

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000392

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000370

AC:

AN:

251450

Hom.:

AF XY:

0.000243

AC XY:

AN XY:

135902

show subpopulations

Gnomad AFR exome

AF:

0.00480

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000148

AC:

217

AN:

1461848

Hom.:

Cov.:

AF XY:

0.000125

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.00520

Gnomad4 AMR exome

AF:

0.000402

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.000281

GnomAD4 genome

AF:

0.00156

AC:

237

AN:

152344

Hom.:

Cov.:

AF XY:

0.00153

AC XY:

114

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.00541

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.000329

Hom.:

Bravo

AF:

0.00178

ESP6500AA

AF:

0.00386

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000412

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

GPNMB-related disorder

Benign:1

Jul 16, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.48

.;T;.;.

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.061

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.74

T;T;T;T

M_CAP

Benign

0.034

MetaRNN

Benign

0.0037

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;M;.;.

PrimateAI

Benign

0.30

PROVEAN

Uncertain

-3.3

D;D;D;.

REVEL

Benign

0.22

Sift

Uncertain

0.0050

D;D;D;.

Sift4G

Uncertain

0.021

D;D;D;.

Polyphen

0.98

D;D;D;.

Vest4

0.51

MVP

0.59

MPC

0.30

ClinPred

0.064

GERP RS

4.3

Varity_R

0.10

gMVP

0.72

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