Genetic Variant GPC1:p.Arg173His (chr2-240462383-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_002081.3(GPC1):c.518G>A(p.Arg173His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000176 in 1,594,210 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

GPC1
NM_002081.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.54

Variant links:

Genes affected

GPC1 (HGNC:4449): (glypican 1) Cell surface heparan sulfate proteoglycans are composed of a membrane-associated protein core substituted with a variable number of heparan sulfate chains. Members of the glypican-related integral membrane proteoglycan family (GRIPS) contain a core protein anchored to the cytoplasmic membrane via a glycosyl phosphatidylinositol linkage. These proteins may play a role in the control of cell division and growth regulation. [provided by RefSeq, Jul 2008]

GPC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.39463094).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPC1	NM_002081.3 link	c.518G>A	p.Arg173His	missense_variant	Exon 3 of 9	ENST00000264039.7	NP_002072.2	P35052-1A0A384NPH9
GPC1	XM_047443961.1 link	c.302G>A	p.Arg101His	missense_variant	Exon 3 of 9		XP_047299917.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GPC1	ENST00000264039.7 link	c.518G>A	p.Arg173His	missense_variant	Exon 3 of 9	1	NM_002081.3	ENSP00000264039.2		P35052-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000715

AC:

AN:

209820

Hom.:

AF XY:

0.0000435

AC XY:

AN XY:

114834

show subpopulations

Gnomad AFR exome

AF:

0.0000821

Gnomad AMR exome

AF:

0.000386

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000552

Gnomad NFE exome

AF:

0.0000110

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000166

AC:

AN:

1441946

Hom.:

Cov.:

AF XY:

0.0000154

AC XY:

AN XY:

715874

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000237

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000239

Gnomad4 FIN exome

AF:

0.0000198

Gnomad4 NFE exome

AF:

0.00000907

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152264

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74444

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000500

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 02, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.518G>A (p.R173H) alteration is located in exon 3 (coding exon 3) of the GPC1 gene. This alteration results from a G to A substitution at nucleotide position 518, causing the arginine (R) at amino acid position 173 to be replaced by a histidine (H). 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

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.33

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.38

T;T;.;.;T

Eigen

Uncertain

0.21

Eigen_PC

Benign

0.14

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.93

D;D;D;D;D

M_CAP

Benign

0.072

MetaRNN

Benign

0.39

T;T;T;T;T

MetaSVM

Benign

-0.75

MutationAssessor

Uncertain

2.7

M;.;.;.;.

PrimateAI

Uncertain

0.73

PROVEAN

Pathogenic

-4.5

D;.;D;.;D

REVEL

Benign

0.20

Sift

Uncertain

0.029

D;.;D;.;T

Sift4G

Benign

0.077

T;T;T;D;T

Polyphen

0.75

P;.;.;.;.

Vest4

0.45

MutPred

0.74

Gain of ubiquitination at K176 (P = 0.0579);.;.;.;.;

MVP

0.87

MPC

0.70

ClinPred

0.45

GERP RS

2.2

Varity_R

0.54

gMVP

0.52

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

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