rs4732720

Positions:

• chr8-27380191-G-A
• chr8-27380191-G-T

Variant summary

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

The NM_173176.3(PTK2B):​c.-37-17357G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.42 in 151,978 control chromosomes in the GnomAD database, including 14,897 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 (14897 hom., cov: 31)
• Consequence: PTK2B NM_173176.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.636

Genes affected

PTK2B (HGNC:9612): (protein tyrosine kinase 2 beta) This gene encodes a cytoplasmic protein tyrosine kinase which is involved in calcium-induced regulation of ion channels and activation of the map kinase signaling pathway. The encoded protein may represent an important signaling intermediate between neuropeptide-activated receptors or neurotransmitters that increase calcium flux and the downstream signals that regulate neuronal activity. The encoded protein undergoes rapid tyrosine phosphorylation and activation in response to increases in the intracellular calcium concentration, nicotinic acetylcholine receptor activation, membrane depolarization, or protein kinase C activation. This protein has been shown to bind CRK-associated substrate, nephrocystin, GTPase regulator associated with FAK, and the SH2 domain of GRB2. The encoded protein is a member of the FAK subfamily of protein tyrosine kinases but lacks significant sequence similarity to kinases from other subfamilies. Four transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.527 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PTK2B	NM_173176.3	c.-37-17357G>A		intron_variant		ENST00000346049.10	NP_775268.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PTK2B	ENST00000346049.10	c.-37-17357G>A		intron_variant		1	NM_173176.3	ENSP00000332816	A1

Frequencies

GnomAD3 genomes AF: 0.420 AC: 63778 AN: 151862 Hom.: 14896 Cov.: 31

Gnomad AFR AF: 0.230

Gnomad AMI AF: 0.581

Gnomad AMR AF: 0.416

Gnomad ASJ AF: 0.602

Gnomad EAS AF: 0.234

Gnomad SAS AF: 0.374

Gnomad FIN AF: 0.478

Gnomad MID AF: 0.522

Gnomad NFE AF: 0.532

Gnomad OTH AF: 0.451

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

GnomAD4 genome AF: 0.420 AC: 63794 AN: 151978 Hom.: 14897 Cov.: 31 AF XY: 0.414 AC XY: 30715 AN XY: 74272

Gnomad4 AFR AF: 0.230

Gnomad4 AMR AF: 0.417

Gnomad4 ASJ AF: 0.602

Gnomad4 EAS AF: 0.234

Gnomad4 SAS AF: 0.374

Gnomad4 FIN AF: 0.478

Gnomad4 NFE AF: 0.532

Gnomad4 OTH AF: 0.446

Alfa AF: 0.509 Hom.: 40518

Bravo AF: 0.407

Asia WGS AF: 0.279 AC: 972 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	5.8
DANN	Benign	0.66

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

LitVar

Other links and lift over

dbSNP: rs4732720; hg19: chr8-27237708;