12-2679713-G-C

Variant names:

• chr12-2679713-G-C
• rs1051375
• NM_000719.7:c.5361G>C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_000719.7(CACNA1C):​c.5361G>C​(p.Thr1787Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. T1787T) has been classified as Benign.

• Frequency: Genomes: not found (cov: 34)
• Consequence: CACNA1C NM_000719.7 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.82

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]

CACNA1C-AS1 (HGNC:):

CACNA1C-AS1 (HGNC:40119): (CACNA1C antisense RNA 1)

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BP7: Synonymous conserved (PhyloP=-3.82 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1C	NM_000719.7	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	ENST00000399655.6	NP_000710.5
CACNA1C	NM_001167623.2	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	ENST00000399603.6	NP_001161095.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CACNA1C	ENST00000399603.6	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	5	NM_001167623.2	ENSP00000382512.1
CACNA1C	ENST00000399655.6	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	1	NM_000719.7	ENSP00000382563.1
CACNA1C	ENST00000682544.1	c.5595G>C	p.Thr1865Thr	synonymous_variant	Exon 44 of 50			ENSP00000507184.1
CACNA1C	ENST00000406454.8	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 48	5		ENSP00000385896.3
CACNA1C	ENST00000399634.6	c.5328G>C	p.Thr1776Thr	synonymous_variant	Exon 41 of 47	5		ENSP00000382542.2
CACNA1C	ENST00000683824.1	c.5526G>C	p.Thr1842Thr	synonymous_variant	Exon 43 of 48			ENSP00000507867.1
CACNA1C	ENST00000347598.9	c.5505G>C	p.Thr1835Thr	synonymous_variant	Exon 44 of 49	1		ENSP00000266376.6
CACNA1C	ENST00000344100.7	c.5484G>C	p.Thr1828Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000341092.3
CACNA1C	ENST00000327702.12	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 48	1		ENSP00000329877.7
CACNA1C	ENST00000399617.6	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 48	5		ENSP00000382526.1
CACNA1C	ENST00000682462.1	c.5451G>C	p.Thr1817Thr	synonymous_variant	Exon 42 of 47			ENSP00000507105.1
CACNA1C	ENST00000683781.1	c.5451G>C	p.Thr1817Thr	synonymous_variant	Exon 42 of 47			ENSP00000507434.1
CACNA1C	ENST00000683840.1	c.5451G>C	p.Thr1817Thr	synonymous_variant	Exon 42 of 47			ENSP00000507612.1
CACNA1C	ENST00000683956.1	c.5451G>C	p.Thr1817Thr	synonymous_variant	Exon 42 of 47			ENSP00000506882.1
CACNA1C	ENST00000399638.5	c.5445G>C	p.Thr1815Thr	synonymous_variant	Exon 43 of 48	1		ENSP00000382547.1
CACNA1C	ENST00000335762.10	c.5436G>C	p.Thr1812Thr	synonymous_variant	Exon 43 of 48	5		ENSP00000336982.5
CACNA1C	ENST00000399606.5	c.5421G>C	p.Thr1807Thr	synonymous_variant	Exon 43 of 48	1		ENSP00000382515.1
CACNA1C	ENST00000399621.5	c.5418G>C	p.Thr1806Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382530.1
CACNA1C	ENST00000399637.5	c.5418G>C	p.Thr1806Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382546.1
CACNA1C	ENST00000402845.7	c.5418G>C	p.Thr1806Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000385724.3
CACNA1C	ENST00000399629.5	c.5412G>C	p.Thr1804Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382537.1
CACNA1C	ENST00000682336.1	c.5403G>C	p.Thr1801Thr	synonymous_variant	Exon 42 of 47			ENSP00000507898.1
CACNA1C	ENST00000399591.5	c.5385G>C	p.Thr1795Thr	synonymous_variant	Exon 41 of 46	1		ENSP00000382500.1
CACNA1C	ENST00000399595.5	c.5385G>C	p.Thr1795Thr	synonymous_variant	Exon 41 of 46	1		ENSP00000382504.1
CACNA1C	ENST00000399649.5	c.5379G>C	p.Thr1793Thr	synonymous_variant	Exon 41 of 46	1		ENSP00000382557.1
CACNA1C	ENST00000399597.5	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382506.1
CACNA1C	ENST00000399601.5	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382510.1
CACNA1C	ENST00000399641.6	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382549.1
CACNA1C	ENST00000399644.5	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47	1		ENSP00000382552.1
CACNA1C	ENST00000682835.1	c.5361G>C	p.Thr1787Thr	synonymous_variant	Exon 42 of 47			ENSP00000507282.1
CACNA1C	ENST00000683482.1	c.5352G>C	p.Thr1784Thr	synonymous_variant	Exon 42 of 47			ENSP00000507169.1
CACNA1C	ENST00000682686.1	c.5328G>C	p.Thr1776Thr	synonymous_variant	Exon 41 of 46			ENSP00000507309.1

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 61

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.0030
DANN	Benign	0.76

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

Other links and lift over

dbSNP: rs1051375; hg19: chr12-2788879;