chr12-80444395-C-A

Variant names:

• chr12-80444395-C-A
• NM_001145026.2:c.50C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001145026.2(PTPRQ):​c.50C>A​(p.Thr17Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000766 in 1,305,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/13 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T17I) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.7e-7 (0 hom.)
• Consequence: PTPRQ NM_001145026.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.315

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12338993).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPRQ	NM_001145026.2	c.50C>A	p.Thr17Lys	missense_variant	Exon 1 of 45	ENST00000644991.3	NP_001138498.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPRQ	ENST00000644991.3	c.50C>A	p.Thr17Lys	missense_variant	Exon 1 of 45		NM_001145026.2	ENSP00000495607.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.66e-7 AC: 1 AN: 1305980 Hom.: 0 Cov.: 22 AF XY: 0.00000154 AC XY: 1 AN XY: 648594

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000100

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	19
DANN	Benign	0.87
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.052
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.56	.;T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.12	T;T
MetaSVM	Benign	-0.98	T
PrimateAI	Benign	0.41	T
Sift4G	Uncertain	0.056	T;.
Vest4		0.44
MVP		0.081
ClinPred		0.15	T
GERP RS		3.9
gMVP		0.23

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-80838175;