rs61754382
Variant summary
Our verdict is Pathogenic. Variant got 22 ACMG points: 22P and 0B. PVS1PM2PP3_StrongPP5_Very_Strong
The NM_000372.5(TYR):c.1037-1G>A variant causes a splice acceptor change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000377 in 1,460,128 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_000372.5 splice_acceptor
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 22 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TYR | NM_000372.5 | c.1037-1G>A | splice_acceptor_variant | ENST00000263321.6 | |||
TYR | XM_011542970.3 | c.1037-1G>A | splice_acceptor_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TYR | ENST00000263321.6 | c.1037-1G>A | splice_acceptor_variant | 1 | NM_000372.5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.0000200 AC: 5AN: 250076Hom.: 0 AF XY: 0.0000296 AC XY: 4AN XY: 135196
GnomAD4 exome AF: 0.0000377 AC: 55AN: 1460128Hom.: 1 Cov.: 32 AF XY: 0.0000358 AC XY: 26AN XY: 726462
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:2Other:1
Pathogenic, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Sep 18, 2023 | The TYR c.1037-1G>A variant (rs61754382) is reported in the literature in the compound heterozygous state in several individuals affected with oculocutaneous albinism (Jackson 2020, Spritz 1997). This variant is reported in ClinVar (Variation ID: 99526). This variant is only observed on five alleles in the Genome Aggregation Database (v2.1.1), indicating it is not a common polymorphism. This variant disrupts the canonical splice acceptor site of intron 2, which is likely to negatively impact gene function. Based on available information, this variant is considered to be pathogenic. References: Jackson D et al. Molecular diagnostic challenges for non-retinal developmental eye disorders in the United Kingdom. Am J Med Genet C Semin Med Genet. 2020 Sep;184(3):578-589. PMID: 32830442. Spritz RA et al. Novel mutations of the tyrosinase (TYR) gene in type I oculocutaneous albinism (OCA1). Hum Mutat. 1997;10(2):171-4. PMID: 9259202. - |
not provided, no classification provided | literature only | Retina International | - | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Dec 05, 2023 | This sequence change affects an acceptor splice site in intron 2 of the TYR gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in TYR are known to be pathogenic (PMID: 23504663). This variant is present in population databases (rs61754382, gnomAD 0.005%). Disruption of this splice site has been observed in individuals with oculocutaneous albinism (PMID: 9259202, 18326704, 27734839, 31077556). This variant is also known as IVS2-1G>A. ClinVar contains an entry for this variant (Variation ID: 99526). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. - |
Tyrosinase-negative oculocutaneous albinism Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Jul 22, 2021 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Aug 12, 2015 | - - |
Oculocutaneous albinism type 1B;C2677190:SKIN/HAIR/EYE PIGMENTATION 3, LIGHT/DARK SKIN;C4551504:Tyrosinase-negative oculocutaneous albinism Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Jul 22, 2021 | - - |
SKIN/HAIR/EYE PIGMENTATION 3, LIGHT/DARK SKIN Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | May 08, 2023 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at