Variant chr9-12695626-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_000550.3(TYRP1):c.497C>G(p.Ser166*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

TYRP1
NM_000550.3 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:5O:1

Conservation

PhyloP100: 0.703

Variant links:

Genes affected

TYRP1 (HGNC:12450): (tyrosinase related protein 1) This gene encodes a melanosomal enzyme that belongs to the tyrosinase family and plays an important role in the melanin biosynthetic pathway. Defects in this gene are the cause of rufous oculocutaneous albinism and oculocutaneous albinism type III. [provided by RefSeq, Mar 2009]

TYRP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 9-12695626-C-G is Pathogenic according to our data. Variant chr9-12695626-C-G is described in ClinVar as [Pathogenic]. Clinvar id is 17594.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TYRP1	NM_000550.3 linkuse as main transcript	c.497C>G	p.Ser166*	stop_gained	3/8	ENST00000388918.10	NP_000541.1	P17643
TYRP1	XM_047423841.1 linkuse as main transcript	c.497C>G	p.Ser166*	stop_gained	3/5		XP_047279797.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TYRP1	ENST00000388918.10 linkuse as main transcript	c.497C>G	p.Ser166*	stop_gained	3/8	1	NM_000550.3	ENSP00000373570.4		P17643

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000652

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000597

AC:

AN:

251214

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135736

show subpopulations

Gnomad AFR exome

AF:

0.000738

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000150

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000197

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74302

show subpopulations

Gnomad4 AFR

AF:

0.000652

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000126

Hom.:

Bravo

AF:

0.000189

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:5Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	May 08, 2024	Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 35616356, 25525159, 18680187, 31589614, 30169122, 10094567, 31345219, 9345097) -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 02, 2024	This sequence change creates a premature translational stop signal (p.Ser166*) in the TYRP1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in TYRP1 are known to be pathogenic (PMID: 8651291, 9345097). This variant is present in population databases (rs104894130, gnomAD 0.06%). This premature translational stop signal has been observed in individual(s) with oculocutaneous albinism (PMID: 9345097). ClinVar contains an entry for this variant (Variation ID: 17594). For these reasons, this variant has been classified as Pathogenic. -

Oculocutaneous albinism type 3

Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Sep 15, 2008

- -

TYRP1-related disorder

Pathogenic:1

Pathogenic, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 01, 2024

The TYRP1 c.497C>G variant is predicted to result in premature protein termination (p.Ser166*). This variant has been reported in both the homozygous and compound heterozygous states in individuals with oculocutaneous albinism (Manga et al. 1997. PubMed ID: 9345097; Moosa et al. 2022. PubMed ID: 35616356). This variant is reported in 0.068% of alleles in individuals of African descent in gnomAD. Nonsense variants in TYRP1 are expected to be pathogenic and therefore we interpret this variant as pathogenic. -

Oculocutaneous albinism type 3;C2677086:MELANESIAN BLOND HAIR

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Mar 13, 2024

- -

ALBINISM, OCULOCUTANEOUS, TYPE II, MODIFIER OF

Other:1

risk factor, no assertion criteria provided

literature only

OMIM

Sep 15, 2008

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.59

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Pathogenic

0.74

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Benign

0.74

Vest4

0.95

GERP RS

3.6

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