rs754433681

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 2P and 14B. PM5BP4_ModerateBP6_Very_StrongBS2

The NM_004484.4(GPC3):c.363T>A(p.His121Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000591 in 1,184,773 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H121Y) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000093 ( 0 hom., 0 hem., cov: 21)

Exomes 𝑓: 0.0000056 ( 0 hom. 2 hem. )

Consequence

GPC3
NM_004484.4 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.253

Variant links:

Genes affected

GPC3 (HGNC:4451): (glypican 3) 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. The protein encoded by this gene can bind to and inhibit the dipeptidyl peptidase activity of CD26, and it can induce apoptosis in certain cell types. Deletion mutations in this gene are associated with Simpson-Golabi-Behmel syndrome, also known as Simpson dysmorphia syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

GPC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chrX-133754153-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 11690.Status of the report is no_assertion_criteria_provided, 0 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.08580905).

BP6

Variant X-133754151-A-T is Benign according to our data. Variant chrX-133754151-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 572682.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Hemizygotes in GnomAdExome at 3 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GPC3	NM_004484.4 linkuse as main transcript	c.363T>A	p.His121Gln	missense_variant	3/8	ENST00000370818.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GPC3	ENST00000370818.8 linkuse as main transcript	c.363T>A	p.His121Gln	missense_variant	3/8	1	NM_004484.4	P1	P51654-1

Frequencies

GnomAD3 genomes

AF:

0.00000934

AC:

AN:

107019

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

29699

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000290

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000509

AC:

AN:

176714

Hom.:

AF XY:

0.0000477

AC XY:

AN XY:

62950

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000662

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000557

AC:

AN:

1077754

Hom.:

Cov.:

AF XY:

0.00000579

AC XY:

AN XY:

345600

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000199

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000934

AC:

AN:

107019

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

29699

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000290

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 23, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Wilms tumor 1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

May 05, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.69

Cadd

Benign

Dann

Benign

0.77

DEOGEN2

Benign

0.33

T;.;.

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.70

T;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.086

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.45

N;N;.

MutationTaster

Benign

0.63

D;D;N

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-0.66

N;N;.

REVEL

Benign

0.087

Sift

Benign

0.91

T;T;.

Sift4G

Benign

0.87

T;T;T

Polyphen

0.024

B;.;.

Vest4

0.19

MutPred

0.62

Gain of ubiquitination at K123 (P = 0.0632);Gain of ubiquitination at K123 (P = 0.0632);.;

MVP

0.65

MPC

0.18

ClinPred

0.054

GERP RS

1.5

Varity_R

0.26

gMVP

0.63

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