chr22-39570851-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BA1

The ENST00000402142.4(CACNA1I):​c.99C>T​(p.Ser33=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.308 in 1,613,156 control chromosomes in the GnomAD database, including 83,656 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.27 ( 6807 hom., cov: 31)
Exomes 𝑓: 0.31 ( 76849 hom. )

Consequence

CACNA1I
ENST00000402142.4 synonymous

Scores

2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: -2.92
Variant links:
Genes affected
CACNA1I (HGNC:1396): (calcium voltage-gated channel subunit alpha1 I) This gene encodes the pore-forming alpha subunit of a voltage gated calcium channel. The encoded protein is a member of a subfamily of calcium channels referred to as is a low voltage-activated, T-type, calcium channel. The channel encoded by this protein is characterized by a slower activation and inactivation compared to other T-type calcium channels. This protein may be involved in calcium signaling in neurons. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 22-39570851-C-T is Benign according to our data. Variant chr22-39570851-C-T is described in ClinVar as [Benign]. Clinvar id is 3060116.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-2.92 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.706 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1INM_021096.4 linkuse as main transcriptc.99C>T p.Ser33= synonymous_variant 1/37 ENST00000402142.4 NP_066919.2
CACNA1INM_001003406.2 linkuse as main transcriptc.99C>T p.Ser33= synonymous_variant 1/36 NP_001003406.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1IENST00000402142.4 linkuse as main transcriptc.99C>T p.Ser33= synonymous_variant 1/371 NM_021096.4 ENSP00000385019 A2Q9P0X4-1
CACNA1IENST00000404898.5 linkuse as main transcriptc.99C>T p.Ser33= synonymous_variant 1/361 ENSP00000384093 A2Q9P0X4-4
CACNA1IENST00000401624.5 linkuse as main transcriptc.99C>T p.Ser33= synonymous_variant 1/361 ENSP00000383887 P4Q9P0X4-2
CACNA1IENST00000407673.5 linkuse as main transcriptc.99C>T p.Ser33= synonymous_variant 1/351 ENSP00000385680 A2Q9P0X4-3

Frequencies

GnomAD3 genomes
AF:
0.266
AC:
40350
AN:
151876
Hom.:
6799
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0920
Gnomad AMI
AF:
0.283
Gnomad AMR
AF:
0.292
Gnomad ASJ
AF:
0.304
Gnomad EAS
AF:
0.724
Gnomad SAS
AF:
0.292
Gnomad FIN
AF:
0.378
Gnomad MID
AF:
0.307
Gnomad NFE
AF:
0.308
Gnomad OTH
AF:
0.306
GnomAD3 exomes
AF:
0.324
AC:
80196
AN:
247356
Hom.:
15221
AF XY:
0.323
AC XY:
43421
AN XY:
134526
show subpopulations
Gnomad AFR exome
AF:
0.0849
Gnomad AMR exome
AF:
0.284
Gnomad ASJ exome
AF:
0.302
Gnomad EAS exome
AF:
0.724
Gnomad SAS exome
AF:
0.270
Gnomad FIN exome
AF:
0.388
Gnomad NFE exome
AF:
0.309
Gnomad OTH exome
AF:
0.342
GnomAD4 exome
AF:
0.312
AC:
456224
AN:
1461162
Hom.:
76849
Cov.:
36
AF XY:
0.311
AC XY:
226156
AN XY:
726892
show subpopulations
Gnomad4 AFR exome
AF:
0.0876
Gnomad4 AMR exome
AF:
0.290
Gnomad4 ASJ exome
AF:
0.307
Gnomad4 EAS exome
AF:
0.744
Gnomad4 SAS exome
AF:
0.266
Gnomad4 FIN exome
AF:
0.387
Gnomad4 NFE exome
AF:
0.304
Gnomad4 OTH exome
AF:
0.321
GnomAD4 genome
AF:
0.266
AC:
40356
AN:
151994
Hom.:
6807
Cov.:
31
AF XY:
0.272
AC XY:
20219
AN XY:
74250
show subpopulations
Gnomad4 AFR
AF:
0.0918
Gnomad4 AMR
AF:
0.292
Gnomad4 ASJ
AF:
0.304
Gnomad4 EAS
AF:
0.725
Gnomad4 SAS
AF:
0.292
Gnomad4 FIN
AF:
0.378
Gnomad4 NFE
AF:
0.308
Gnomad4 OTH
AF:
0.311
Alfa
AF:
0.283
Hom.:
3063
Bravo
AF:
0.257
Asia WGS
AF:
0.436
AC:
1510
AN:
3478
EpiCase
AF:
0.309
EpiControl
AF:
0.301

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CACNA1I-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesOct 18, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.84
DANN
Benign
0.55

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

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

Other links and lift over

dbSNP: rs3747178; hg19: chr22-39966856; COSMIC: COSV60821862; API