rs12001162

Positions:

• chr9-12693129-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The ENST00000473763.1(TYRP1):​c.-85-783T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0107 in 152,250 control chromosomes in the GnomAD database, including 31 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.011 (31 hom., cov: 32)
• Consequence: TYRP1 ENST00000473763.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0980

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0107 (1633/152250) while in subpopulation AFR AF= 0.037 (1538/41534). AF 95% confidence interval is 0.0355. There are 31 homozygotes in gnomad4. There are 759 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 31 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TYRP1	ENST00000473763.1	c.-85-783T>C		intron_variant		4		ENSP00000419006

Frequencies

GnomAD3 genomes AF: 0.0107 AC: 1630 AN: 152132 Hom.: 31 Cov.: 32

Gnomad AFR AF: 0.0371

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00367

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000338

Gnomad OTH AF: 0.00574

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0107 AC: 1633 AN: 152250 Hom.: 31 Cov.: 32 AF XY: 0.0102 AC XY: 759 AN XY: 74454

Gnomad4 AFR AF: 0.0370

Gnomad4 AMR AF: 0.00366

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000338

Gnomad4 OTH AF: 0.00568

Alfa AF: 0.00626 Hom.: 2

Bravo AF: 0.0125

Asia WGS AF: 0.00173 AC: 6 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
CADD	Benign	1.7
DANN	Benign	0.83

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs12001162; hg19: chr9-12693129;