Genetic Variant GPC1:p.Pro127Ser (chr2-240462244-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002081.3(GPC1):c.379C>T(p.Pro127Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000133 in 1,610,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P127P) has been classified as Benign.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

GPC1
NM_002081.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.276

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 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07942513).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPC1	NM_002081.3 link	c.379C>T	p.Pro127Ser	missense_variant	Exon 3 of 9	ENST00000264039.7	NP_002072.2	P35052-1A0A384NPH9
GPC1	XM_047443961.1 link	c.163C>T	p.Pro55Ser	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.379C>T	p.Pro127Ser	missense_variant	Exon 3 of 9	1	NM_002081.3	ENSP00000264039.2		P35052-1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000206

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000615

AC:

AN:

243788

Hom.:

AF XY:

0.0000602

AC XY:

AN XY:

132972

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:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000137

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000134

AC:

195

AN:

1458360

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

725198

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

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:

0.000173

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000125

AC:

AN:

152338

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74498

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000206

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.000151

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000579

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000595

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 17, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.379C>T (p.P127S) alteration is located in exon 3 (coding exon 3) of the GPC1 gene. This alteration results from a C to T substitution at nucleotide position 379, causing the proline (P) at amino acid position 127 to be replaced by a serine (S). 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

0.11

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Benign

0.33

DEOGEN2

Benign

0.13

T;T;.;.;T

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.72

T;T;T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.079

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;.;.;.;.

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-3.4

D;.;D;.;.

REVEL

Benign

0.20

Sift

Benign

0.81

T;.;T;.;.

Sift4G

Benign

0.76

T;T;T;T;T

Polyphen

0.0020

B;.;.;.;.

Vest4

0.27

MVP

0.67

MPC

0.27

ClinPred

0.055

GERP RS

3.1

Varity_R

0.30

gMVP

0.25

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