Variant 19-53982715-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_031895.6(CACNG8):c.1144G>A(p.Val382Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000171 in 1,168,608 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 32)

Exomes 𝑓: 9.8e-7 ( 0 hom. )

Consequence

CACNG8
NM_031895.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.95

Variant links:

Genes affected

CACNG8 (HGNC:13628): (calcium voltage-gated channel auxiliary subunit gamma 8) 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. The mRNA for this gene is believed to initiate translation from a non-AUG (CUG) start codon. [provided by RefSeq, Dec 2010]

CACNG8 links:

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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=0.11120549).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNG8	NM_031895.6 linkuse as main transcript	c.1144G>A	p.Val382Ile	missense_variant	4/4	ENST00000270458.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNG8	ENST00000270458.4 linkuse as main transcript	c.1144G>A	p.Val382Ile	missense_variant	4/4	1	NM_031895.6	P1

Frequencies

GnomAD3 genomes

AF:

0.00000671

AC:

AN:

149136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000150

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

9.81e-7

AC:

AN:

1019472

Hom.:

Cov.:

AF XY:

0.00000206

AC XY:

AN XY:

486400

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000113

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000671

AC:

AN:

149136

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

72672

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000150

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000378

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 submitter

clinical testing

Ambry Genetics

Mar 23, 2022

The c.1144G>A (p.V382I) alteration is located in exon 4 (coding exon 4) of the CACNG8 gene. This alteration results from a G to A substitution at nucleotide position 1144, causing the valine (V) at amino acid position 382 to be replaced by an isoleucine (I). 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

Uncertain

0.35

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.69

Cadd

Benign

Dann

Benign

0.97

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.77

FATHMM_MKL

Benign

0.56

LIST_S2

Benign

0.51

T;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-1.0

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-0.20

N;.

REVEL

Benign

0.091

Sift

Benign

0.35

T;.

Sift4G

Benign

0.46

T;.

Polyphen

0.23

.;B

Vest4

0.082

MutPred

0.20

Gain of sheet (P = 0.0085);Gain of sheet (P = 0.0085);

MVP

0.088

ClinPred

0.11

Varity_R

0.057

gMVP

0.098

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over