Genetic Variant PTPRC:p.Arg774Gly (chr1-198735169-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002838.5(PTPRC):c.2320C>G(p.Arg774Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000689 in 1,451,992 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R774W) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

PTPRC
NM_002838.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.21

Publications

0 publications found

Variant links:

Genes affected

PTPRC (HGNC:9666): (protein tyrosine phosphatase receptor type C) 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, mitosis, and oncogenic transformation. This PTP contains an extracellular domain, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus is classified as a receptor type PTP. This PTP has been shown to be an essential regulator of T- and B-cell antigen receptor signaling. It functions through either direct interaction with components of the antigen receptor complexes, or by activating various Src family kinases required for the antigen receptor signaling. This PTP also suppresses JAK kinases, and thus functions as a regulator of cytokine receptor signaling. Alternatively spliced transcripts variants of this gene, which encode distinct isoforms, have been reported. [provided by RefSeq, Jun 2012]

PTPRC Gene-Disease associations (from GenCC):

immunodeficiency 104
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
T-B+ severe combined immunodeficiency due to CD45 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PTPRC links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PTPRC	NM_002838.5 link	c.2320C>G	p.Arg774Gly	missense_variant	Exon 23 of 33	ENST00000442510.8	NP_002829.3	P08575-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PTPRC	ENST00000442510.8 link	c.2320C>G	p.Arg774Gly	missense_variant	Exon 23 of 33	1	NM_002838.5	ENSP00000411355.3		P08575-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.89e-7

AC:

AN:

1451992

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

722184

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33226

American (AMR)

AF:

0.00

AC:

AN:

44404

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25898

East Asian (EAS)

AF:

0.00

AC:

AN:

39312

South Asian (SAS)

AF:

0.00

AC:

AN:

84622

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52980

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5710

European-Non Finnish (NFE)

AF:

9.04e-7

AC:

AN:

1105988

Other (OTH)

AF:

0.00

AC:

AN:

59852

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Uncertain

0.059

BayesDel_noAF

Benign

-0.15

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.50

.;.;D

Eigen

Benign

0.0035

Eigen_PC

Benign

-0.028

FATHMM_MKL

Benign

0.64

LIST_S2

Uncertain

0.88

D;D;D

M_CAP

Uncertain

0.13

MetaRNN

Uncertain

0.51

D;D;D

MetaSVM

Uncertain

-0.13

PhyloP100

3.2

PrimateAI

Benign

0.31

REVEL

Uncertain

0.47

Sift4G

Benign

0.21

T;T;D

Vest4

0.29

MVP

0.51

MPC

0.56

ClinPred

0.91

GERP RS

3.0

Varity_R

0.42

gMVP

0.56

Mutation Taster

=61/39

polymorphism

(source)

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over