rs752694570

Variant names:

• chr12-2679607-C-G
• rs752694570
• NM_000719.7:c.5255C>G

Your query was ambiguous. Multiple possible variants found:

• chr12-2679607-C-G
• chr12-2679607-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_000719.7(CACNA1C):​c.5255C>G​(p.Thr1752Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1752I) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CACNA1C NM_000719.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.48
• Publications: 0 publications found

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]

ITFG2-AS1 (HGNC:53128): (ITFG2 antisense RNA 1)

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.36169922).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CACNA1C	NM_000719.7	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	ENST00000399655.6	NP_000710.5
CACNA1C	NM_001167623.2	c.5255C>G	p.Thr1752Ser	missense_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.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	5	NM_001167623.2	ENSP00000382512.1
CACNA1C	ENST00000399655.6	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	1	NM_000719.7	ENSP00000382563.1
CACNA1C	ENST00000682544.1	c.5489C>G	p.Thr1830Ser	missense_variant	Exon 44 of 50			ENSP00000507184.1
CACNA1C	ENST00000406454.8	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 48	5		ENSP00000385896.3
CACNA1C	ENST00000399634.6	c.5222C>G	p.Thr1741Ser	missense_variant	Exon 41 of 47	5		ENSP00000382542.2
CACNA1C	ENST00000683824.1	c.5420C>G	p.Thr1807Ser	missense_variant	Exon 43 of 48			ENSP00000507867.1
CACNA1C	ENST00000347598.9	c.5399C>G	p.Thr1800Ser	missense_variant	Exon 44 of 49	1		ENSP00000266376.6
CACNA1C	ENST00000344100.7	c.5378C>G	p.Thr1793Ser	missense_variant	Exon 42 of 47	1		ENSP00000341092.3
CACNA1C	ENST00000327702.12	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 48	1		ENSP00000329877.7
CACNA1C	ENST00000399617.6	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 48	5		ENSP00000382526.1
CACNA1C	ENST00000682462.1	c.5345C>G	p.Thr1782Ser	missense_variant	Exon 42 of 47			ENSP00000507105.1
CACNA1C	ENST00000683781.1	c.5345C>G	p.Thr1782Ser	missense_variant	Exon 42 of 47			ENSP00000507434.1
CACNA1C	ENST00000683840.1	c.5345C>G	p.Thr1782Ser	missense_variant	Exon 42 of 47			ENSP00000507612.1
CACNA1C	ENST00000683956.1	c.5345C>G	p.Thr1782Ser	missense_variant	Exon 42 of 47			ENSP00000506882.1
CACNA1C	ENST00000399638.5	c.5339C>G	p.Thr1780Ser	missense_variant	Exon 43 of 48	1		ENSP00000382547.1
CACNA1C	ENST00000335762.10	c.5330C>G	p.Thr1777Ser	missense_variant	Exon 43 of 48	5		ENSP00000336982.5
CACNA1C	ENST00000399606.5	c.5315C>G	p.Thr1772Ser	missense_variant	Exon 43 of 48	1		ENSP00000382515.1
CACNA1C	ENST00000399621.5	c.5312C>G	p.Thr1771Ser	missense_variant	Exon 42 of 47	1		ENSP00000382530.1
CACNA1C	ENST00000399637.5	c.5312C>G	p.Thr1771Ser	missense_variant	Exon 42 of 47	1		ENSP00000382546.1
CACNA1C	ENST00000402845.7	c.5312C>G	p.Thr1771Ser	missense_variant	Exon 42 of 47	1		ENSP00000385724.3
CACNA1C	ENST00000399629.5	c.5306C>G	p.Thr1769Ser	missense_variant	Exon 42 of 47	1		ENSP00000382537.1
CACNA1C	ENST00000682336.1	c.5297C>G	p.Thr1766Ser	missense_variant	Exon 42 of 47			ENSP00000507898.1
CACNA1C	ENST00000399591.5	c.5279C>G	p.Thr1760Ser	missense_variant	Exon 41 of 46	1		ENSP00000382500.1
CACNA1C	ENST00000399595.5	c.5279C>G	p.Thr1760Ser	missense_variant	Exon 41 of 46	1		ENSP00000382504.1
CACNA1C	ENST00000399649.5	c.5273C>G	p.Thr1758Ser	missense_variant	Exon 41 of 46	1		ENSP00000382557.1
CACNA1C	ENST00000399597.5	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	1		ENSP00000382506.1
CACNA1C	ENST00000399601.5	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	1		ENSP00000382510.1
CACNA1C	ENST00000399641.6	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	1		ENSP00000382549.1
CACNA1C	ENST00000399644.5	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47	1		ENSP00000382552.1
CACNA1C	ENST00000682835.1	c.5255C>G	p.Thr1752Ser	missense_variant	Exon 42 of 47			ENSP00000507282.1
CACNA1C	ENST00000683482.1	c.5246C>G	p.Thr1749Ser	missense_variant	Exon 42 of 47			ENSP00000507169.1
CACNA1C	ENST00000682686.1	c.5222C>G	p.Thr1741Ser	missense_variant	Exon 41 of 46			ENSP00000507309.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461534 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727058

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44696

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26116

East Asian (EAS) AF: 0.00 AC: 0 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86224

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53366

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111826

Other (OTH) AF: 0.00 AC: 0 AN: 60368

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
CardioboostArm	Benign	0.0000061
BayesDel_addAF	Pathogenic	0.20	D
BayesDel_noAF	Uncertain	0.040
CADD	Uncertain	25
DANN	Benign	0.95
DEOGEN2	Benign	0.011	T;.;.;.;.;.;.;.;.;.;.;.;.;.;.;T;.;.;.;.;T;.;T
Eigen	Uncertain	0.19
Eigen_PC	Benign	0.20
FATHMM_MKL	Pathogenic	0.98	D
M_CAP	Uncertain	0.14	D
MetaRNN	Benign	0.36	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Uncertain	0.39	D
MutationAssessor	Benign	1.9	.;.;.;.;.;.;.;.;.;.;L;.;.;.;.;.;.;.;.;.;.;.;.
PhyloP100		4.5
PrimateAI	Uncertain	0.66	T
PROVEAN	Benign	-1.6	N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;.
REVEL	Uncertain	0.46
Sift	Benign	0.26	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;.
Sift4G	Benign	0.78	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen		0.99, 0.059, 0.035, 1.0, 1.0, 0.59, 1.0	.;D;B;B;B;D;D;D;P;D;D;D;D;D;D;.;D;D;.;.;.;D;.
Vest4		0.51
MutPred		0.24		.;.;.;.;.;.;.;.;.;.;Gain of relative solvent accessibility (P = 0.0166);.;.;.;.;.;.;.;.;.;.;.;.;
MVP		0.83
MPC		0.18
ClinPred		0.63	D
GERP RS		4.6
gMVP		0.41
Mutation Taster		=41/59	disease causing

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

Other links and lift over

dbSNP: rs752694570; hg19: chr12-2788773;