rs771894093

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_021096.4(CACNA1I):​c.309C>A​(p.Asp103Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000423 in 1,607,508 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000041 ( 0 hom. )

Consequence

CACNA1I
NM_021096.4 missense

Scores

1
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.344

Publications

0 publications found
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]
CACNA1I Gene-Disease associations (from GenCC):
  • neurodevelopmental disorder with speech impairment and with or without seizures
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: MODERATE Submitted by: Illumina

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.093425244).
BS2
High AC in GnomAd4 at 9 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021096.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1I
NM_021096.4
MANE Select
c.309C>Ap.Asp103Glu
missense
Exon 2 of 37NP_066919.2
CACNA1I
NM_001003406.2
c.309C>Ap.Asp103Glu
missense
Exon 2 of 36NP_001003406.1Q9P0X4-4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CACNA1I
ENST00000402142.4
TSL:1 MANE Select
c.309C>Ap.Asp103Glu
missense
Exon 2 of 37ENSP00000385019.3Q9P0X4-1
CACNA1I
ENST00000404898.5
TSL:1
c.309C>Ap.Asp103Glu
missense
Exon 2 of 36ENSP00000384093.1Q9P0X4-4
CACNA1I
ENST00000401624.5
TSL:1
c.309C>Ap.Asp103Glu
missense
Exon 2 of 36ENSP00000383887.1Q9P0X4-2

Frequencies

GnomAD3 genomes
AF:
0.0000592
AC:
9
AN:
152056
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000132
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000251
AC:
6
AN:
239264
AF XY:
0.00000770
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000460
Gnomad OTH exome
AF:
0.000171
GnomAD4 exome
AF:
0.0000405
AC:
59
AN:
1455452
Hom.:
0
Cov.:
32
AF XY:
0.0000401
AC XY:
29
AN XY:
723572
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33410
American (AMR)
AF:
0.00
AC:
0
AN:
44186
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26036
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39512
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85096
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51752
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.0000505
AC:
56
AN:
1109534
Other (OTH)
AF:
0.0000499
AC:
3
AN:
60168
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.460
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000592
AC:
9
AN:
152056
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74260
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41394
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
67980
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000779
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
7.4
DANN
Benign
0.91
DEOGEN2
Benign
0.19
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.53
D
LIST_S2
Benign
0.84
T
M_CAP
Pathogenic
0.51
D
MetaRNN
Benign
0.093
T
MetaSVM
Uncertain
-0.043
T
MutationAssessor
Benign
-1.1
N
PhyloP100
-0.34
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
1.4
N
REVEL
Benign
0.25
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.0010
B
Vest4
0.093
MutPred
0.39
Loss of stability (P = 0.2216)
MVP
0.64
MPC
0.70
ClinPred
0.028
T
GERP RS
-6.8
Varity_R
0.053
gMVP
0.33
Mutation Taster
=81/19
polymorphism

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

Other links and lift over

dbSNP: rs771894093; hg19: chr22-39994228; API