NM_000372.5:c.346C>T

Variant names:

Variant summary

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

The NM_000372.5(TYR):c.346C>T(p.Arg116*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,614,110 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 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

TYR
NM_000372.5 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:10O:1

Conservation

PhyloP100: 0.805

Variant links:

Genes affected

TYR (HGNC:12442): (tyrosinase) The enzyme encoded by this gene catalyzes the first 2 steps, and at least 1 subsequent step, in the conversion of tyrosine to melanin. The enzyme has both tyrosine hydroxylase and dopa oxidase catalytic activities, and requires copper for function. Mutations in this gene result in oculocutaneous albinism, and nonpathologic polymorphisms result in skin pigmentation variation. The human genome contains a pseudogene similar to the 3' half of this gene. [provided by RefSeq, Oct 2008]

TYR 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 11-89178299-C-T is Pathogenic according to our data. Variant chr11-89178299-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 99565.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-89178299-C-T is described in Lovd as [Pathogenic]. Variant chr11-89178299-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TYR	NM_000372.5 link	c.346C>T	p.Arg116*	stop_gained	Exon 1 of 5	ENST00000263321.6	NP_000363.1	P14679-1L8B082
TYR	XM_011542970.3 link	c.346C>T	p.Arg116*	stop_gained	Exon 1 of 6		XP_011541272.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TYR	ENST00000263321.6 link	c.346C>T	p.Arg116*	stop_gained	Exon 1 of 5	1	NM_000372.5	ENSP00000263321.4		P14679-1
TYR	ENST00000526139.1 link	n.407C>T		non_coding_transcript_exon_variant	Exon 1 of 3	1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000580

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251354

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135848

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000126

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000189

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74428

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000582

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000233

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:10Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Oculocutaneous albinism type 1A

Pathogenic:3

Mar 20, 2017

Genetic Services Laboratory, University of Chicago

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Medical Molecular Genetics Department, National Research Center

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 22, 2021

Genome-Nilou Lab

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Pathogenic:2Other:1

Jan 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change creates a premature translational stop signal (p.Arg116*) in the TYR gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in TYR are known to be pathogenic (PMID: 23504663). This variant is present in population databases (rs61753256, gnomAD 0.03%). This premature translational stop signal has been observed in individuals with oculocutaneous albinism (PMID: 31077556, 31199599). ClinVar contains an entry for this variant (Variation ID: 99565). For these reasons, this variant has been classified as Pathogenic. -

Retina International

Significance: not provided

Review Status: no classification provided

Collection Method: literature only

- -

Feb 03, 2023

GeneDx

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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; This variant is associated with the following publications: (PMID: 31077556, 23324268, 10671066, 26252096, 28507374, 31199599, 34426522, 32552135, 35923705, 28378818, 30996339) -

Oculocutaneous albinism type 1B;C2677190:SKIN/HAIR/EYE PIGMENTATION 3, LIGHT/DARK SKIN;C4551504:Oculocutaneous albinism type 1A

Pathogenic:1

Feb 09, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Oculocutaneous albinism type 1B;C2677190:SKIN/HAIR/EYE PIGMENTATION 3, LIGHT/DARK SKIN;C4551504:Oculocutaneous albinism type 1A;CN028925:Ocular albinism with congenital sensorineural hearing loss

Pathogenic:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

TYR-related disorder

Pathogenic:1

Aug 01, 2024

PreventionGenetics, part of Exact Sciences

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

The TYR c.346C>T variant is predicted to result in premature protein termination (p.Arg116*). This variant has been reported in multiple individuals with oculocutaneous albinism (see for examples: Oetting et al. 1998. PubMed ID: 10671066; Wei et al. 2013. PubMed ID: 23324268; Lin et al. 2019. PubMed ID: 31199599). This variant is reported in 0.025% of alleles in individuals of East Asian descent in gnomAD. Nonsense variants in TYR are an established mechanism of disease. Given the evidence, we interpret this variant as pathogenic. -

Oculocutaneous albinism type 1B;C4551504:Oculocutaneous albinism type 1A

Pathogenic:1

Juno Genomics, Hangzhou Juno Genomics, Inc

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PM2_Supporting+PVS1+PM3_Strong+PP4 -

SKIN/HAIR/EYE PIGMENTATION 3, LIGHT/DARK SKIN

Pathogenic:1

Dec 14, 2023

Baylor Genetics

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.22

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Benign

0.15

Eigen_PC

Benign

-0.17

FATHMM_MKL

Benign

0.25

Vest4

0.89

GERP RS

0.091

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