rs1361083258

Positions:

• chr1-181721870-G-A
• chr1-181721870-G-T

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM1 PM2 PM5 PP2 PP3_Strong

The NM_001205293.3(CACNA1E):​c.2069G>A​(p.Gly690Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G690V) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CACNA1E NM_001205293.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter P:1 U:1
• Conservation: PhyloP100: 8.02

Genes affected

CACNA1E (HGNC:1392): (calcium voltage-gated channel subunit alpha1 E) Voltage-dependent calcium channels are multisubunit complexes consisting of alpha-1, alpha-2, beta, and delta subunits in a 1:1:1:1 ratio. These channels mediate the entry of calcium ions into excitable cells, and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. This gene encodes the alpha-1E subunit of the R-type calcium channels, which belong to the 'high-voltage activated' group that maybe involved in the modulation of firing patterns of neurons important for information processing. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Apr 2011]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PM1: In a transmembrane_region Helical; Name=S6 of repeat II (size 24) in uniprot entity CAC1E_HUMAN there are 19 pathogenic changes around while only 1 benign (95%) in NM_001205293.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr1-181721870-G-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1346057.Status of the report is criteria_provided_single_submitter, 1 stars.
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CACNA1E. . Gene score misZ 5.8125 (greater than the threshold 3.09). Trascript score misZ 6.7013 (greater than threshold 3.09). GenCC has associacion of gene with developmental and epileptic encephalopathy, developmental and epileptic encephalopathy, 69.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.98

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA1E	NM_001205293.3	c.2069G>A	p.Gly690Asp	missense_variant	16/48	ENST00000367573.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA1E	ENST00000367573.7	c.2069G>A	p.Gly690Asp	missense_variant	16/48	1	NM_001205293.3	A2
CACNA1E	ENST00000367570.6	c.2069G>A	p.Gly690Asp	missense_variant	16/47	1		P4
CACNA1E	ENST00000621791.4	c.2069G>A	p.Gly690Asp	missense_variant	16/46	1		A2
CACNA1E	ENST00000360108.7	c.2069G>A	p.Gly690Asp	missense_variant	16/47	5		A2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 27

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1 Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts Pathogenic:1

Likely pathogenic, no assertion criteria provided

literature only

Yale Center for Mendelian Genomics, Yale University

Nov 01, 2018

- -

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 05, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.57	D
BayesDel_noAF	Pathogenic	0.58
CADD	Pathogenic	26
DANN	Uncertain	1.0
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.92
FATHMM_MKL	Pathogenic	0.99	D
M_CAP	Pathogenic	0.91	D
MetaRNN	Pathogenic	0.98	D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Pathogenic	3.6	H;H;.;H;.;H;H;H
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.94	D
PROVEAN	Pathogenic	-6.1	D;.;D;D;.;.;.;.
REVEL	Pathogenic	0.97
Sift	Uncertain	0.0050	D;.;D;D;.;.;.;.
Sift4G	Uncertain	0.0060	D;D;D;D;D;D;D;D
Polyphen		1.0	D;D;.;.;.;D;.;D
Vest4		0.85
MutPred		0.88		Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);Loss of catalytic residue at G690 (P = 0.3027);
MVP		0.99
MPC		1.3
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.79
gMVP		1.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs1361083258; hg19: chr1-181691006; COSMIC: COSV100701379;