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GeneBe

2-85552428-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM5PP3_ModeratePP5

The NM_000821.7(GGCX):c.1427G>A(p.Arg476His) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R476C) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

GGCX
NM_000821.7 missense

Scores

15
3
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.18
Variant links:
Genes affected
GGCX (HGNC:4247): (gamma-glutamyl carboxylase) This gene encodes an integral membrane protein of the rough endoplasmic reticulum that carboxylates glutamate residues of vitamin K-dependent proteins to gamma carboxyl glutamate, a modification that is required for their activity. The vitamin K-dependent protein substrates have a propeptide that binds the enzyme, with carbon dioxide, dioxide, and reduced vitamin K acting as co-substrates. Vitamin K-dependent proteins affect a number of physiologic processes including blood coagulation, prevention of vascular calcification, and inflammation. Allelic variants of this gene have been associated with pseudoxanthoma elasticum-like disorder with associated multiple coagulation factor deficiency. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr2-85552429-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 16204.Status of the report is no_assertion_criteria_provided, 0 stars.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.93
PP5
Variant 2-85552428-C-T is Pathogenic according to our data. Variant chr2-85552428-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 16205.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GGCXNM_000821.7 linkuse as main transcriptc.1427G>A p.Arg476His missense_variant 10/15 ENST00000233838.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GGCXENST00000233838.9 linkuse as main transcriptc.1427G>A p.Arg476His missense_variant 10/151 NM_000821.7 P1P38435-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251478
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135910
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:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461558
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000727
Hom.:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Body skin hyperlaxity due to vitamin K-dependent coagulation factor deficiency Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMMar 01, 2007- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.87
BayesDel_addAF
Pathogenic
0.49
D
BayesDel_noAF
Pathogenic
0.56
Cadd
Pathogenic
31
Dann
Pathogenic
1.0
DEOGEN2
Pathogenic
0.93
D;.
Eigen
Pathogenic
0.96
Eigen_PC
Pathogenic
0.93
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Pathogenic
0.47
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.0
M;.
MutationTaster
Benign
1.0
A;A
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-4.7
D;D
REVEL
Pathogenic
0.91
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;.
Vest4
0.91
MVP
0.93
MPC
1.1
ClinPred
1.0
D
GERP RS
6.0
Varity_R
0.80
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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.

Other links and lift over

dbSNP: rs121909682; hg19: chr2-85779551; API