chr12-2115327-G-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 2P and 11B. PM2BP4_ModerateBP6_Very_StrongBP7

The ENST00000399655.6(CACNA1C):​c.153G>T​(p.Ser51=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000209 in 1,433,018 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. S51S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CACNA1C
ENST00000399655.6 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.992
Variant links:
Genes affected
CACNA1C (HGNC:1390): (calcium voltage-gated channel subunit alpha1 C) This gene encodes an alpha-1 subunit of a voltage-dependent calcium channel. Calcium channels mediate the influx of calcium ions into the cell upon membrane polarization. The alpha-1 subunit consists of 24 transmembrane segments and forms the pore through which ions pass into the cell. The calcium channel consists of a complex of alpha-1, alpha-2/delta, beta, and gamma subunits in a 1:1:1:1 ratio. There are multiple isoforms of each of these proteins, either encoded by different genes or the result of alternative splicing of transcripts. The protein encoded by this gene binds to and is inhibited by dihydropyridine. Alternative splicing results in many transcript variants encoding different proteins. Some of the predicted proteins may not produce functional ion channel subunits. [provided by RefSeq, Oct 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 12-2115327-G-T is Benign according to our data. Variant chr12-2115327-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 1123225.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.992 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1CNM_000719.7 linkuse as main transcriptc.153G>T p.Ser51= synonymous_variant 2/47 ENST00000399655.6 NP_000710.5
CACNA1CNM_001167623.2 linkuse as main transcriptc.153G>T p.Ser51= synonymous_variant 2/47 ENST00000399603.6 NP_001161095.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1CENST00000399603.6 linkuse as main transcriptc.153G>T p.Ser51= synonymous_variant 2/475 NM_001167623.2 ENSP00000382512 Q13936-37
CACNA1CENST00000399655.6 linkuse as main transcriptc.153G>T p.Ser51= synonymous_variant 2/471 NM_000719.7 ENSP00000382563 Q13936-12

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.0000101
AC:
2
AN:
197292
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
108586
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:
0.00
Gnomad FIN exome
AF:
0.0000616
Gnomad NFE exome
AF:
0.0000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000209
AC:
3
AN:
1433018
Hom.:
0
Cov.:
32
AF XY:
0.00000281
AC XY:
2
AN XY:
711288
show subpopulations
Gnomad4 AFR exome
AF:
0.0000307
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:
0.00000182
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Long QT syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 08, 2023- -
Cardiovascular phenotype Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsFeb 16, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
9.4
DANN
Benign
0.73

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs563315606; hg19: chr12-2224493; API