7-23254171-G-T

Variant names:

• chr7-23254171-G-T
• rs200247677
• NM_002510.3:c.226G>T

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4 BP6_Moderate

The NM_002510.3(GPNMB):​c.226G>T​(p.Gly76Cys) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000133 in 1,611,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.00011 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00013 (0 hom.)
• Consequence: GPNMB NM_002510.3 missense, splice_region
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 5.62
• Publications: 6 publications found

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 Gene-Disease associations (from GenCC):

• amyloidosis, primary localized cutaneous, 3

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.4109534).
• BP6: Variant 7-23254171-G-T is Benign according to our data. Variant chr7-23254171-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 3067283.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPNMB	NM_002510.3	c.226G>T	p.Gly76Cys	missense_variant, splice_region_variant	Exon 3 of 11	ENST00000258733.9	NP_002501.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPNMB	ENST00000258733.9	c.226G>T	p.Gly76Cys	missense_variant, splice_region_variant	Exon 3 of 11	1	NM_002510.3	ENSP00000258733.5

Frequencies

GnomAD3 genomes AF: 0.000112 AC: 17 AN: 152188 Hom.: 0 Cov.: 33

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: 0.000414

Gnomad FIN AF: 0.000848

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000735

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.000305 AC: 76 AN: 248904 AF XY: 0.000342

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000548

Gnomad FIN exome AF: 0.00111

Gnomad NFE exome AF: 0.000240

Gnomad OTH exome AF: 0.00132

GnomAD4 exome AF: 0.000135 AC: 197 AN: 1459674 Hom.: 0 Cov.: 31 AF XY: 0.000151 AC XY: 110 AN XY: 726192

African (AFR) AF: 0.0000300 AC: 1 AN: 33388

American (AMR) AF: 0.00 AC: 0 AN: 44188

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26002

East Asian (EAS) AF: 0.0000757 AC: 3 AN: 39644

South Asian (SAS) AF: 0.000501 AC: 43 AN: 85910

European-Finnish (FIN) AF: 0.00120 AC: 64 AN: 53372

Middle Eastern (MID) AF: 0.000174 AC: 1 AN: 5756

European-Non Finnish (NFE) AF: 0.0000576 AC: 64 AN: 1111120

Other (OTH) AF: 0.000348 AC: 21 AN: 60294

GnomAD4 genome AF: 0.000112 AC: 17 AN: 152306 Hom.: 0 Cov.: 33 AF XY: 0.000148 AC XY: 11 AN XY: 74486

African (AFR) AF: 0.00 AC: 0 AN: 41562

American (AMR) AF: 0.00 AC: 0 AN: 15302

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.000414 AC: 2 AN: 4828

European-Finnish (FIN) AF: 0.000848 AC: 9 AN: 10612

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 68024

Other (OTH) AF: 0.000473 AC: 1 AN: 2112

Alfa AF: 0.000110 Hom.: 0

Bravo AF: 0.0000491

ExAC AF: 0.000329 AC: 40

EpiCase AF: 0.000165

EpiControl AF: 0.000119

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Mar 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

GPNMB: BP4 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.59
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Uncertain	-0.050
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.67	.;D;.;.
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.88	D;D;D;D
M_CAP	Benign	0.053	D
MetaRNN	Benign	0.41	T;T;T;T
MetaSVM	Benign	-0.29	T
MutationAssessor	Pathogenic	3.3	M;M;.;.
PhyloP100		5.6
PrimateAI	Benign	0.45	T
PROVEAN	Pathogenic	-8.1	D;D;D;.
REVEL	Uncertain	0.38
Sift	Uncertain	0.0010	D;D;D;.
Sift4G	Pathogenic	0.0	D;D;D;.
Polyphen		1.0	D;D;D;.
Vest4		0.83
MVP		0.76
MPC		0.43
ClinPred		0.70	D
GERP RS		5.2
Varity_R		0.79
gMVP		0.82
Mutation Taster		=58/42	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs200247677; hg19: chr7-23293790;