Genetic Variant CACNG7:p.Pro81Leu (chr19-53914545-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_031896.5(CACNG7):c.242C>T(p.Pro81Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,950 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 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

CACNG7
NM_031896.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.59

Variant links:

Genes affected

CACNG7 (HGNC:13626): (calcium voltage-gated channel auxiliary subunit gamma 7) 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. [provided by RefSeq, Dec 2010]

CACNG7 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.39592785).

BS2

High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNG7	NM_031896.5 link	c.242C>T	p.Pro81Leu	missense_variant	Exon 3 of 6	ENST00000391767.6	NP_114102.2	P62955
CACNG7	NM_001384801.1 link	c.242C>T	p.Pro81Leu	missense_variant	Exon 3 of 5		NP_001371730.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CACNG7	ENST00000391767.6 link	c.242C>T	p.Pro81Leu	missense_variant	Exon 3 of 6	5	NM_031896.5	ENSP00000375647.1	P62955
CACNG7	ENST00000222212.6 link	c.242C>T	p.Pro81Leu	missense_variant	Exon 2 of 5	1		ENSP00000222212.2	P62955
CACNG7	ENST00000391766.1 link	c.242C>T	p.Pro81Leu	missense_variant	Exon 2 of 4	1		ENSP00000375646.1	A0A0C4DFY2
CACNG7	ENST00000468076.5 link	n.184-820C>T		intron_variant	Intron 1 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000120

AC:

AN:

250400

Hom.:

AF XY:

0.00000738

AC XY:

AN XY:

135418

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000578

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000719

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74288

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

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

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

Nov 18, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.242C>T (p.P81L) alteration is located in exon 2 (coding exon 2) of the CACNG7 gene. This alteration results from a C to T substitution at nucleotide position 242, causing the proline (P) at amino acid position 81 to be replaced by a leucine (L). 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

-0.073

BayesDel_noAF

Benign

-0.16

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.14

T;T;.

Eigen

Benign

-0.37

Eigen_PC

Benign

-0.27

FATHMM_MKL

Benign

0.46

LIST_S2

Uncertain

0.95

.;D;D

M_CAP

Benign

0.038

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Benign

-0.69

MutationAssessor

Benign

1.1

L;L;.

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.8

N;N;N

REVEL

Benign

0.27

Sift

Benign

0.13

T;T;T

Sift4G

Benign

0.31

T;T;T

Polyphen

0.012

B;B;.

Vest4

0.60

MutPred

0.47

Loss of sheet (P = 0.0142);Loss of sheet (P = 0.0142);Loss of sheet (P = 0.0142);

MVP

0.66

MPC

0.86

ClinPred

0.38

GERP RS

3.1

Varity_R

0.092

gMVP

0.90

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