rs72556355

Positions:

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_000720.4(CACNA1D):c.3228-6C>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000213 in 1,613,860 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0011 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

CACNA1D
NM_000720.4 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.0005636

Clinical Significance

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

Conservation

PhyloP100: 0.145

Variant links:

Genes affected

CACNA1D (HGNC:1391): (calcium voltage-gated channel subunit alpha1 D) Voltage-dependent calcium 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, and gene expression. Calcium channels are multisubunit complexes composed of alpha-1, beta, alpha-2/delta, and gamma subunits. The channel activity is directed by the pore-forming alpha-1 subunit, whereas the others act as auxiliary subunits regulating this activity. The distinctive properties of the calcium channel types are related primarily to the expression of a variety of alpha-1 isoforms, namely alpha-1A, B, C, D, E, and S. This gene encodes the alpha-1D subunit. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

CACNA1D links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

BP6

Variant 3-53747296-C-G is Benign according to our data. Variant chr3-53747296-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 227198.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00115 (175/152338) while in subpopulation AFR AF= 0.00411 (171/41574). AF 95% confidence interval is 0.00361. There are 1 homozygotes in gnomad4. There are 74 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CACNA1D	NM_000720.4 linkuse as main transcript	c.3228-6C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000288139.11
CACNA1D	NM_001128840.3 linkuse as main transcript	c.3168-6C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000350061.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CACNA1D	ENST00000288139.11 linkuse as main transcript	c.3228-6C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_000720.4	P2	Q01668-2
CACNA1D	ENST00000350061.11 linkuse as main transcript	c.3168-6C>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_001128840.3		Q01668-1

Frequencies

GnomAD3 genomes

AF:

0.00114

AC:

174

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00410

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000478

GnomAD3 exomes

AF:

0.000326

AC:

AN:

251414

Hom.:

AF XY:

0.000250

AC XY:

AN XY:

135886

show subpopulations

Gnomad AFR exome

AF:

0.00400

Gnomad AMR exome

AF:

0.000376

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000115

AC:

168

AN:

1461522

Hom.:

Cov.:

AF XY:

0.0000880

AC XY:

AN XY:

727110

show subpopulations

Gnomad4 AFR exome

AF:

0.00433

Gnomad4 AMR exome

AF:

0.000335

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.00115

AC:

175

AN:

152338

Hom.:

Cov.:

AF XY:

0.000993

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.00411

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000670

Hom.:

Bravo

AF:

0.00144

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 28, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 27, 2021	- -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Aug 25, 2017

c.3228-6C>G in intron 26 of CACNA1D: This variant is not expected to have clinic al significance because it has been identified in 0.38% (92/24032) of African ch romosomes including 2 homozygotes by the Genome Aggregation Database (gnomAD, ht tp://gnomad.broadinstitute.org; dbSNP rs72556355). -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 24, 2023

This 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

-0.80

CADD

Benign

6.2

DANN

Benign

0.40

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00056

dbscSNV1_RF

Benign

0.11

SpliceAI score (max)

0.060

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over