12-80436384-T-G

Variant names:

• chr12-80436384-T-G
• rs188234804
• ENST00000616559.4:c.19+1283T>G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_Strong PM2

The ENST00000547376.5(PTPRQ):​c.757+2T>G variant causes a splice donor, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PTPRQ ENST00000547376.5 splice_donor, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.99

Genes affected

PTPRQ (HGNC:9679): (protein tyrosine phosphatase receptor type Q) This locus encodes a member of the type III receptor-like protein-tyrosine phosphatase family. The encoded protein catalyzes the dephosphorylation of phosphotyrosine and phosphatidylinositol and plays roles in cellular proliferation and differentiation. Mutations at this locus have been linked to autosomal recessive deafness. [provided by RefSeq, Mar 2014]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.24316682 fraction of the gene. No cryptic splice site detected. Exon removal is inframe change.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPRQ	ENST00000616559.4	c.19+1283T>G		intron_variant	Intron 1 of 44	5		ENSP00000483259.1
PTPRQ	ENST00000547376.5	c.757+2T>G		splice_donor_variant, intron_variant	Intron 9 of 11	5		ENSP00000448844.1
PTPRQ	ENST00000551042.5	c.499+1283T>G		intron_variant	Intron 11 of 13	5		ENSP00000447522.1
PTPRQ	ENST00000551573.5	c.547+1283T>G		intron_variant	Intron 6 of 8	3		ENSP00000449133.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Uncertain	0.050	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	17
DANN	Benign	0.89
Eigen	Uncertain	0.66
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Uncertain	0.89	D
GERP RS		3.7

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs188234804; hg19: chr12-80830164;