Genetic Variant NM_000719.7:c.5391C>G (chr12-2679743-C-G) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_000719.7(CACNA1C):c.5391C>G(p.Pro1797Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000893 in 1,600,474 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 (★★).

Frequency

Genomes: 𝑓 0.00052 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

CACNA1C
NM_000719.7 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.0290

Publications

1 publications found

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]

CACNA1C links:

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

ITFG2-AS1 links:

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

CACNA1C-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 12-2679743-C-G is Benign according to our data. Variant chr12-2679743-C-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 238175.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.029 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000519 (79/152342) while in subpopulation AFR AF = 0.00185 (77/41594). AF 95% confidence interval is 0.00152. There are 0 homozygotes in GnomAd4. There are 35 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 79 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000719.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CACNA1C	NM_000719.7	MANE Select	c.5391C>G	p.Pro1797Pro	synonymous	Exon 42 of 47	NP_000710.5
CACNA1C	NM_001167623.2	MANE Plus Clinical	c.5391C>G	p.Pro1797Pro	synonymous	Exon 42 of 47	NP_001161095.1	Q13936-37
CACNA1C	NM_199460.4		c.5535C>G	p.Pro1845Pro	synonymous	Exon 44 of 50	NP_955630.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CACNA1C	ENST00000399603.6	TSL:5 MANE Plus Clinical	c.5391C>G	p.Pro1797Pro	synonymous	Exon 42 of 47	ENSP00000382512.1	Q13936-37
CACNA1C	ENST00000399655.6	TSL:1 MANE Select	c.5391C>G	p.Pro1797Pro	synonymous	Exon 42 of 47	ENSP00000382563.1	Q13936-12
CACNA1C	ENST00000682544.1		c.5625C>G	p.Pro1875Pro	synonymous	Exon 44 of 50	ENSP00000507184.1	A0A804HIR0

Frequencies

GnomAD3 genomes

AF:

0.000519

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00186

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000108

AC:

AN:

222362

AF XY:

0.0000744

show subpopulations

Gnomad AFR exome

AF:

0.00166

Gnomad AMR exome

AF:

0.0000628

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000102

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000442

AC:

AN:

1448132

Hom.:

Cov.:

AF XY:

0.0000445

AC XY:

AN XY:

718866

show subpopulations

African (AFR)

AF:

0.00157

AC:

AN:

33092

American (AMR)

AF:

0.0000701

AC:

AN:

42776

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25792

East Asian (EAS)

AF:

0.00

AC:

AN:

38944

South Asian (SAS)

AF:

0.00

AC:

AN:

84334

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52424

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5738

European-Non Finnish (NFE)

AF:

0.00000181

AC:

AN:

1105162

Other (OTH)

AF:

0.000117

AC:

AN:

59870

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000519

AC:

AN:

152342

Hom.:

Cov.:

AF XY:

0.000470

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.00185

AC:

AN:

41594

American (AMR)

AF:

0.000131

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000641

Hom.:

Bravo

AF:

0.000536

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Cardiovascular phenotype (1)

Long QT syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.44

CADD

Benign

5.3

(source)

DANN

Benign

0.77

PhyloP100

0.029

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over