rs2733836

chr9-12692252-T-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000473763.1(TYRP1):c.-85-1660T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.423 in 152,102 control chromosomes in the GnomAD database, including 16,709 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 0.42 (16709 hom., cov: 32)
• Consequence: TYRP1 ENST00000473763.1 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.147

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=-0.94).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.593 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TYRP1	ENST00000473763.1	c.-85-1660T>G		intron_variant		4

Frequencies

GnomAD3 genomes AF: 0.423 AC: 64319 AN: 151984 Hom.: 16708 Cov.: 32

Gnomad AFR AF: 0.175

Gnomad AMI AF: 0.455

Gnomad AMR AF: 0.399

Gnomad ASJ AF: 0.480

Gnomad EAS AF: 0.0199

Gnomad SAS AF: 0.194

Gnomad FIN AF: 0.588

Gnomad MID AF: 0.443

Gnomad NFE AF: 0.598

Gnomad OTH AF: 0.430

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

GnomAD4 genome AF: 0.423 AC: 64332 AN: 152102 Hom.: 16709 Cov.: 32 AF XY: 0.415 AC XY: 30823 AN XY: 74352

Gnomad4 AFR AF: 0.175

Gnomad4 AMR AF: 0.399

Gnomad4 ASJ AF: 0.480

Gnomad4 EAS AF: 0.0197

Gnomad4 SAS AF: 0.194

Gnomad4 FIN AF: 0.588

Gnomad4 NFE AF: 0.598

Gnomad4 OTH AF: 0.427

Alfa AF: 0.512 Hom.: 2729

Bravo AF: 0.402

Asia WGS AF: 0.130 AC: 454 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
Cadd	Benign	2.1
Dann	Benign	0.40

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs2733836; hg19: chr9-12692252;