X-49205208-C-T

Position:

chrX-49205208-C-T

Variant summary

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

The NM_001256789.3(CACNA1F):c.5830G>A(p.Glu1944Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000413 in 1,209,205 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 15 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000045 ( 0 hom. 15 hem. )

Consequence

CACNA1F
NM_001256789.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.29

Variant links:

Genes affected

CACNA1F (HGNC:1393): (calcium voltage-gated channel subunit alpha1 F) This gene encodes a multipass transmembrane protein that functions as an alpha-1 subunit of the voltage-dependent calcium channel, which mediates the influx of calcium ions into the cell. The encoded protein forms a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. Mutations in this gene can cause X-linked eye disorders, including congenital stationary night blindness type 2A, cone-rod dystropy, and Aland Island eye disease. Alternatively spliced transcript variants encoding multiple isoforms have been observed. [provided by RefSeq, Aug 2013]

CACNA1F links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.39664164).

BS2

High Hemizygotes in GnomAdExome4 at 15 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CACNA1F	NM_001256789.3 linkuse as main transcript	c.5830G>A	p.Glu1944Lys	missense_variant	48/48	ENST00000323022.10	NP_001243718.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CACNA1F	ENST00000323022.10 linkuse as main transcript	c.5830G>A	p.Glu1944Lys	missense_variant	48/48	1	NM_001256789.3	ENSP00000321618		O60840-2
CACNA1F	ENST00000376265.2 linkuse as main transcript	c.5863G>A	p.Glu1955Lys	missense_variant	48/48	1		ENSP00000365441	P1	O60840-1
CACNA1F	ENST00000376251.5 linkuse as main transcript	c.5668G>A	p.Glu1890Lys	missense_variant	48/48	1		ENSP00000365427		O60840-4

Frequencies

GnomAD3 genomes

AF:

0.00000894

AC:

AN:

111830

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33980

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:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000220

AC:

AN:

182026

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

66746

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000529

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000370

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000447

AC:

AN:

1097375

Hom.:

Cov.:

AF XY:

0.0000413

AC XY:

AN XY:

362779

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:

0.0000185

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000558

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

AF:

0.00000894

AC:

AN:

111830

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33980

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:

0.0000188

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000594

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

May 29, 2022

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 1955 of the CACNA1F protein (p.Glu1955Lys). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with CACNA1F-related conditions. This variant is present in population databases (rs782379230, gnomAD 0.005%). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Uncertain

0.089

BayesDel_noAF

Uncertain

0.040

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.16

.;.;T

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Pathogenic

0.43

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Uncertain

0.70

MutationAssessor

Benign

1.9

.;.;L

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-2.2

N;N;N

REVEL

Uncertain

0.49

Sift

Uncertain

0.029

D;D;D

Sift4G

Uncertain

0.0080

D;D;D

Polyphen

0.81

.;.;P

Vest4

0.42

MVP

0.82

MPC

0.26

ClinPred

0.27

GERP RS

4.1

Varity_R

0.33

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.

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