rs146184286

Variant names:

• chr7-23256945-G-A
• rs146184286
• NM_002510.3:c.421G>A

Your query was ambiguous. Multiple possible variants found:

• chr7-23256945-G-A
• chr7-23256945-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002510.3(GPNMB):​c.421G>A​(p.Asp141Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: GPNMB NM_002510.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.44

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]

ACMG classification

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=0.12271929).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPNMB	NM_002510.3	c.421G>A	p.Asp141Asn	missense_variant	Exon 4 of 11	ENST00000258733.9	NP_002501.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPNMB	ENST00000258733.9	c.421G>A	p.Asp141Asn	missense_variant	Exon 4 of 11	1	NM_002510.3	ENSP00000258733.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251450 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135902

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

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: 6.84e-7 AC: 1 AN: 1461848 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727230

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000224

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.098
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	.;T;.;.
Eigen	Benign	-0.012
Eigen_PC	Benign	-0.10
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Benign	0.72	T;T;T;T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.12	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.8	L;L;.;.
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-1.4	N;N;N;.
REVEL	Benign	0.078
Sift	Benign	0.25	T;T;T;.
Sift4G	Benign	0.40	T;T;T;.
Polyphen		0.28	B;D;D;.
Vest4		0.13
MutPred		0.17		Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);
MVP		0.53
MPC		0.078
ClinPred		0.63	D
GERP RS		4.3
Varity_R		0.056
gMVP		0.42

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

Other links and lift over

dbSNP: rs146184286; hg19: chr7-23296564;