rs62635042

chrX-9741444-T-AchrX-9741444-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM5 PP3_Strong

The NM_000273.3(GPR143):c.779A>T(p.Asn260Ile) variant causes a missense change. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N260S) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 22)
• Consequence: GPR143 NM_000273.3 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 6.80

Genes affected

GPR143 (HGNC:20145): (G protein-coupled receptor 143) This gene encodes a protein that binds to heterotrimeric G proteins and is targeted to melanosomes in pigment cells. This protein is thought to be involved in intracellular signal transduction mechanisms. Mutations in this gene cause ocular albinism type 1, also referred to as Nettleship-Falls type ocular albinism, a severe visual disorder. A related pseudogene has been identified on chromosome Y. [provided by RefSeq, Dec 2009]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM5: Other missense variant is known to change same aminoacid residue: Variant chrX-9741444-T-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 438187.Status of the report is no_assertion_criteria_provided, 0 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.985

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GPR143	NM_000273.3	c.779A>T	p.Asn260Ile	missense_variant	7/9	ENST00000467482.6
GPR143	XM_005274541.4	c.779A>T	p.Asn260Ile	missense_variant	7/9
GPR143	XM_024452388.2	c.527A>T	p.Asn176Ile	missense_variant	7/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GPR143	ENST00000467482.6	c.779A>T	p.Asn260Ile	missense_variant	7/9	1	NM_000273.3	P1
GPR143	ENST00000447366.5	c.527A>T	p.Asn176Ile	missense_variant	7/8	3

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 18

GnomAD4 genome Cov.: 22

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

not provided Other:1

not provided, no classification provided

literature only

Retina International

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.77
BayesDel_addAF	Pathogenic	0.47	D
BayesDel_noAF	Pathogenic	0.44
Cadd	Uncertain	25
Dann	Uncertain	0.99
DEOGEN2	Pathogenic	0.99	D;.
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.91	D;D
M_CAP	Pathogenic	0.78	D
MetaRNN	Pathogenic	0.98	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.4	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.57	T
PROVEAN	Pathogenic	-7.9	D;.
REVEL	Pathogenic	0.88
Sift	Pathogenic	0.0	D;.
Sift4G	Uncertain	0.0030	D;D
Polyphen		1.0	D;.
Vest4		0.93
MutPred		0.87		Gain of relative solvent accessibility (P = 0.1259);.;
MVP		0.98
MPC		0.31
ClinPred		1.0	D
GERP RS		5.1
Varity_R		0.97
gMVP		0.99

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs62635042; hg19: chrX-9709484;