Genetic Variant PTPRB:p.Arg2027Gln (chr12-70536026-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001109754.4(PTPRB):c.6080G>A(p.Arg2027Gln) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000411 in 1,460,468 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

PTPRB
NM_001109754.4 missense, splice_region

Scores

Splicing: ADA: 0.9781

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.92

Variant links:

Genes affected

PTPRB (HGNC:9665): (protein tyrosine phosphatase receptor type B) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains an extracellular domain, a single transmembrane segment and one intracytoplasmic catalytic domain, thus belongs to receptor type PTP. The extracellular region of this PTP is composed of multiple fibronectin type_III repeats, which was shown to interact with neuronal receptor and cell adhesion molecules, such as contactin and tenascin C. This protein was also found to interact with sodium channels, and thus may regulate sodium channels by altering tyrosine phosphorylation status. The functions of the interaction partners of this protein implicate the roles of this PTP in cell adhesion, neurite growth, and neuronal differentiation. Alternate transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2011]

PTPRB links:

ENSG00000258168 (HGNC:58150):

ENSG00000258168 links:

LOC105369828 (HGNC:):

LOC105369828 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPRB	NM_001109754.4 link	c.6080G>A	p.Arg2027Gln	missense_variant, splice_region_variant	Exon 29 of 34	ENST00000334414.11	NP_001103224.1	P23467-3Q86VA4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPRB	ENST00000334414.11 link	c.6080G>A	p.Arg2027Gln	missense_variant, splice_region_variant	Exon 29 of 34	1	NM_001109754.4	ENSP00000334928.6		P23467-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248728

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

134942

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000888

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1460468

Hom.:

Cov.:

AF XY:

0.00000551

AC XY:

AN XY:

726476

show subpopulations

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:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.6080G>A (p.R2027Q) alteration is located in exon 29 (coding exon 29) of the PTPRB gene. This alteration results from a G to A substitution at nucleotide position 6080, causing the arginine (R) at amino acid position 2027 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.062

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.65

.;D;.;.;D

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.72

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

0.99

D;D;D;D;D

M_CAP

Benign

0.045

MetaRNN

Uncertain

0.65

D;D;D;D;D

MetaSVM

Uncertain

0.42

MutationAssessor

Benign

1.8

.;.;.;.;L

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-3.2

D;D;D;D;D

REVEL

Uncertain

0.53

Sift

Uncertain

0.0080

D;D;D;D;D

Sift4G

Uncertain

0.030

D;D;D;D;D

Polyphen

1.0

D;D;.;D;D

Vest4

0.60

MutPred

0.65

.;Gain of catalytic residue at R1939 (P = 0);.;.;.;

MVP

0.81

MPC

1.1

ClinPred

0.98

GERP RS

5.9

Varity_R

0.92

gMVP

0.55

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

0.98

dbscSNV1_RF

Benign

0.67

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over