rs766482434

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BS1BS2

The NM_004484.4(GPC3):​c.1632G>A​(p.Pro544Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000142 in 1,200,428 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.000037 ( 0 hom., 0 hem., cov: 21)
Exomes 𝑓: 0.000012 ( 0 hom. 5 hem. )

Consequence

GPC3
NM_004484.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.469

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • Simpson-Golabi-Behmel syndrome
    Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Simpson-Golabi-Behmel syndrome type 1
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.43).
BP6
Variant X-133536235-C-T is Benign according to our data. Variant chrX-133536235-C-T is described in ClinVar as Benign. ClinVar VariationId is 415273.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.469 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0000365 (4/109567) while in subpopulation AFR AF = 0.0001 (3/29982). AF 95% confidence interval is 0.0000265. There are 0 homozygotes in GnomAd4. There are 0 alleles in the male GnomAd4 subpopulation. Median coverage is 21. This position passed quality control check.
BS2
High Hemizygotes in GnomAdExome4 at 5 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GPC3NM_004484.4 linkc.1632G>A p.Pro544Pro synonymous_variant Exon 8 of 8 ENST00000370818.8 NP_004475.1 P51654-1Q53H15I6QTG3
GPC3NM_001164617.2 linkc.1701G>A p.Pro567Pro synonymous_variant Exon 9 of 9 NP_001158089.1 P51654-3Q53H15
GPC3NM_001164618.2 linkc.1584G>A p.Pro528Pro synonymous_variant Exon 8 of 8 NP_001158090.1 Q53H15B4DTD8
GPC3NM_001164619.2 linkc.1470G>A p.Pro490Pro synonymous_variant Exon 7 of 7 NP_001158091.1 P51654-2Q53H15

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GPC3ENST00000370818.8 linkc.1632G>A p.Pro544Pro synonymous_variant Exon 8 of 8 1 NM_004484.4 ENSP00000359854.3 P51654-1

Frequencies

GnomAD3 genomes
AF:
0.0000365
AC:
4
AN:
109567
Hom.:
0
Cov.:
21
show subpopulations
Gnomad AFR
AF:
0.000100
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:
0.0000190
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000383
AC:
7
AN:
182974
AF XY:
0.0000296
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000109
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000144
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000246
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000119
AC:
13
AN:
1090861
Hom.:
0
Cov.:
30
AF XY:
0.0000140
AC XY:
5
AN XY:
356413
show subpopulations
African (AFR)
AF:
0.0000381
AC:
1
AN:
26231
American (AMR)
AF:
0.0000852
AC:
3
AN:
35199
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19338
East Asian (EAS)
AF:
0.0000663
AC:
2
AN:
30180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
53979
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40529
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4112
European-Non Finnish (NFE)
AF:
0.00000598
AC:
5
AN:
835452
Other (OTH)
AF:
0.0000436
AC:
2
AN:
45841
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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
AF:
0.0000365
AC:
4
AN:
109567
Hom.:
0
Cov.:
21
AF XY:
0.00
AC XY:
0
AN XY:
31819
show subpopulations
African (AFR)
AF:
0.000100
AC:
3
AN:
29982
American (AMR)
AF:
0.00
AC:
0
AN:
10159
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2631
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3483
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2477
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5723
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
234
European-Non Finnish (NFE)
AF:
0.0000190
AC:
1
AN:
52736
Other (OTH)
AF:
0.00
AC:
0
AN:
1462
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.538
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000612
Hom.:
0
Bravo
AF:
0.0000189

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

GPC3-related disorder Benign:1
Mar 04, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Wilms tumor 1 Benign:1
Jan 23, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
2.3
DANN
Benign
0.67
PhyloP100
0.47
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs766482434; hg19: chrX-132670263; API