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GeneBe

17-66885065-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_145811.3(CACNG5):c.653G>A(p.Arg218His) variant causes a missense change. The variant allele was found at a frequency of 0.0000898 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00035 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000063 ( 0 hom. )

Consequence

CACNG5
NM_145811.3 missense

Scores

1
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.30
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_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04748723).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CACNG5NM_145811.3 linkuse as main transcriptc.653G>A p.Arg218His missense_variant 6/6 ENST00000533854.6
CACNG5NM_001371476.1 linkuse as main transcriptc.424+4368G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CACNG5ENST00000533854.6 linkuse as main transcriptc.653G>A p.Arg218His missense_variant 6/62 NM_145811.3 P1
CACNG5ENST00000307139.4 linkuse as main transcriptc.653G>A p.Arg218His missense_variant 5/51 P1
CACNG5ENST00000673855.1 linkuse as main transcriptc.424+4368G>A intron_variant

Frequencies

GnomAD3 genomes
AF:
0.000348
AC:
53
AN:
152148
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00101
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000392
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000187
AC:
47
AN:
251270
Hom.:
0
AF XY:
0.000118
AC XY:
16
AN XY:
135810
show subpopulations
Gnomad AFR exome
AF:
0.00129
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000925
Gnomad SAS exome
AF:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000629
AC:
92
AN:
1461878
Hom.:
0
Cov.:
33
AF XY:
0.0000619
AC XY:
45
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.000388
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000378
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000297
Gnomad4 OTH exome
AF:
0.000298
GnomAD4 genome
AF:
0.000348
AC:
53
AN:
152148
Hom.:
0
Cov.:
32
AF XY:
0.000323
AC XY:
24
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.00101
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000386
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000121
Hom.:
0
Bravo
AF:
0.000359
ESP6500AA
AF:
0.00113
AC:
5
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000206
AC:
25
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

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 GeneticsJun 01, 2023The c.653G>A (p.R218H) 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 653, causing the arginine (R) at amino acid position 218 to be replaced by a histidine (H). 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
0.077
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.27
Cadd
Uncertain
25
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.11
T;T
Eigen
Benign
0.12
Eigen_PC
Benign
0.20
FATHMM_MKL
Uncertain
0.94
D
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.047
T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
1.0
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-1.8
N;N
REVEL
Benign
0.14
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0050
D;D
Polyphen
0.63
P;P
Vest4
0.25
MVP
0.59
MPC
0.28
ClinPred
0.035
T
GERP RS
3.4
Varity_R
0.15
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.

Other links and lift over

dbSNP: rs145536558; hg19: chr17-64881182; COSMIC: COSV50056573; API