22-39619404-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_021096.4(CACNA1I):​c.577C>T​(p.Pro193Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CACNA1I
NM_021096.4 missense

Scores

13
5
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.53
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 Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.819

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1INM_021096.4 linkc.577C>T p.Pro193Ser missense_variant 4/37 ENST00000402142.4 NP_066919.2 Q9P0X4-1
CACNA1INM_001003406.2 linkc.577C>T p.Pro193Ser missense_variant 4/36 NP_001003406.1 Q9P0X4-4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1IENST00000402142.4 linkc.577C>T p.Pro193Ser missense_variant 4/371 NM_021096.4 ENSP00000385019.3 Q9P0X4-1
CACNA1IENST00000404898.5 linkc.577C>T p.Pro193Ser missense_variant 4/361 ENSP00000384093.1 Q9P0X4-4
CACNA1IENST00000401624.5 linkc.577C>T p.Pro193Ser missense_variant 4/361 ENSP00000383887.1 Q9P0X4-2
CACNA1IENST00000407673.5 linkc.577C>T p.Pro193Ser missense_variant 4/351 ENSP00000385680.1 Q9P0X4-3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1452652
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
723162
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxDec 16, 2023Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.12
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.69
.;.;.;D
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.99
D;D;D;D
M_CAP
Pathogenic
0.53
D
MetaRNN
Pathogenic
0.82
D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.6
M;M;M;M
PrimateAI
Pathogenic
0.87
D
PROVEAN
Pathogenic
-7.3
D;D;D;D
REVEL
Pathogenic
0.76
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
D;D;D;D
Vest4
0.67
MutPred
0.53
Gain of MoRF binding (P = 0.0451);Gain of MoRF binding (P = 0.0451);Gain of MoRF binding (P = 0.0451);Gain of MoRF binding (P = 0.0451);
MVP
0.95
MPC
1.8
ClinPred
1.0
D
GERP RS
5.1
Varity_R
0.74
gMVP
0.93

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-40015409; API