Genetic Variant TYRP1:c.1409-67C>T (chr9-12708910-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000550.3(TYRP1):c.1409-67C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,874 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

TYRP1
NM_000550.3 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -3.34

Publications

5 publications found

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:

LURAP1L-AS1 (HGNC:49761): (LURAP1L antisense RNA 1)

LURAP1L-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.67).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000550.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TYRP1	NM_000550.3	MANE Select	c.1409-67C>T		intron	N/A	NP_000541.1	P17643
	LURAP1L-AS1	NR_125775.1		n.317-8284G>A		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
TYRP1	ENST00000388918.10	TSL:1 MANE Select	c.1409-67C>T	intron	N/A	ENSP00000373570.4	P17643
TYRP1	ENST00000381136.2	TSL:2	c.539-67C>T	intron	N/A	ENSP00000370528.2	E7EQI3
TYRP1	ENST00000381142.3	TSL:2	n.499-67C>T	intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151874

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1218810

Hom.:

AF XY:

0.00

AC XY:

AN XY:

613592

African (AFR)

AF:

0.00

AC:

AN:

27716

American (AMR)

AF:

0.00

AC:

AN:

38670

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24272

East Asian (EAS)

AF:

0.00

AC:

AN:

35822

South Asian (SAS)

AF:

0.00

AC:

AN:

77678

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46892

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5338

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

910438

Other (OTH)

AF:

0.00

AC:

AN:

51984

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151874

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74152

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41378

American (AMR)

AF:

0.00

AC:

AN:

15222

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10576

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67912

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

1826

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

CADD

Benign

0.055

(source)

DANN

Benign

0.92

PhyloP100

-3.3

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over