17-67018213-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_014405.4(CACNG4):​c.245G>A​(p.Arg82Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000762 in 1,613,910 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000064 ( 0 hom. )

Consequence

CACNG4
NM_014405.4 missense

Scores

2
5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.43
Variant links:
Genes affected
CACNG4 (HGNC:1408): (calcium voltage-gated channel auxiliary subunit gamma 4) The protein encoded by this gene is a type I 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 II TARP and a calcium channel gamma subunit. [provided by RefSeq, Dec 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.19512865).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNG4NM_014405.4 linkuse as main transcriptc.245G>A p.Arg82Gln missense_variant 2/4 ENST00000262138.4 NP_055220.1 Q9UBN1A0A024R8J8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNG4ENST00000262138.4 linkuse as main transcriptc.245G>A p.Arg82Gln missense_variant 2/41 NM_014405.4 ENSP00000262138.3 Q9UBN1

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
152158
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000659
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000131
AC:
33
AN:
251468
Hom.:
0
AF XY:
0.000140
AC XY:
19
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000647
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000643
AC:
94
AN:
1461752
Hom.:
0
Cov.:
30
AF XY:
0.0000633
AC XY:
46
AN XY:
727196
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.000861
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.000232
GnomAD4 genome
AF:
0.000191
AC:
29
AN:
152158
Hom.:
0
Cov.:
32
AF XY:
0.000256
AC XY:
19
AN XY:
74328
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00118
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000659
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000793
Hom.:
0
Bravo
AF:
0.000132
ExAC
AF:
0.000140
AC:
17

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 GeneticsMay 25, 2022The c.245G>A (p.R82Q) alteration is located in exon 2 (coding exon 2) of the CACNG4 gene. This alteration results from a G to A substitution at nucleotide position 245, causing the arginine (R) at amino acid position 82 to be replaced by a glutamine (Q). 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
0.095
BayesDel_addAF
Benign
-0.017
T
BayesDel_noAF
Uncertain
-0.030
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.34
T
Eigen
Benign
-0.032
Eigen_PC
Benign
0.15
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.95
D
M_CAP
Uncertain
0.086
D
MetaRNN
Benign
0.20
T
MetaSVM
Benign
-0.30
T
MutationAssessor
Benign
0.47
N
PrimateAI
Pathogenic
0.81
D
PROVEAN
Benign
-0.20
N
REVEL
Uncertain
0.49
Sift
Benign
0.66
T
Sift4G
Benign
0.76
T
Polyphen
0.20
B
Vest4
0.43
MVP
0.81
MPC
0.96
ClinPred
0.075
T
GERP RS
4.9
Varity_R
0.14
gMVP
0.91

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: rs201531279; hg19: chr17-65014329; COSMIC: COSV50924626; COSMIC: COSV50924626; API