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GeneBe

17-66884989-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_145811.3(CACNG5):c.577G>A(p.Gly193Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,828 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

CACNG5
NM_145811.3 missense

Scores

16
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.34
Variant links:
Genes affected
CACNG5 (HGNC:1409): (calcium voltage-gated channel auxiliary subunit gamma 5) The protein encoded by this gene is a type II transmembrane AMPA receptor regulatory protein (TARP). TARPs regulate both trafficking and channel gating of the AMPA receptors. This gene is part of a functionally diverse eight-member protein subfamily of the PMP-22/EMP/MP20 family and is located in a cluster with two family members, a type I TARP and a calcium channel gamma subunit. This gene is a susceptibility locus for schizophrenia and bipolar disorder. [provided by RefSeq, Dec 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.965

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNG5NM_145811.3 linkuse as main transcriptc.577G>A p.Gly193Arg missense_variant 6/6 ENST00000533854.6
CACNG5NM_001371476.1 linkuse as main transcriptc.424+4292G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNG5ENST00000533854.6 linkuse as main transcriptc.577G>A p.Gly193Arg missense_variant 6/62 NM_145811.3 P1
CACNG5ENST00000307139.4 linkuse as main transcriptc.577G>A p.Gly193Arg missense_variant 5/51 P1
CACNG5ENST00000673855.1 linkuse as main transcriptc.424+4292G>A intron_variant

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251420
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135880
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461828
Hom.:
0
Cov.:
33
AF XY:
0.00000688
AC XY:
5
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
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:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 22, 2024The c.577G>A (p.G193R) alteration is located in exon 5 (coding exon 5) of the CACNG5 gene. This alteration results from a G to A substitution at nucleotide position 577, causing the glycine (G) at amino acid position 193 to be replaced by an arginine (R). 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
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.54
Cadd
Pathogenic
32
Dann
Pathogenic
1.0
DEOGEN2
Pathogenic
0.83
D;D
Eigen
Pathogenic
0.78
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.98
D
M_CAP
Pathogenic
0.34
D
MetaRNN
Pathogenic
0.96
D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.6
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.89
D
PROVEAN
Pathogenic
-5.4
D;D
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.98
MutPred
0.83
Gain of solvent accessibility (P = 0.0171);Gain of solvent accessibility (P = 0.0171);
MVP
0.89
MPC
0.90
ClinPred
0.99
D
GERP RS
3.4
Varity_R
0.79
gMVP
0.94

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs200209024; hg19: chr17-64881106; API