chr1-201040302-G-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_000069.3(CACNA1S):​c.5299C>A​(p.Pro1767Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000157 in 1,613,728 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

CACNA1S
NM_000069.3 missense

Scores

2
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -0.519
Variant links:
Genes affected
CACNA1S (HGNC:1397): (calcium voltage-gated channel subunit alpha1 S) This gene encodes one of the five subunits of the slowly inactivating L-type voltage-dependent calcium channel in skeletal muscle cells. Mutations in this gene have been associated with hypokalemic periodic paralysis, thyrotoxic periodic paralysis and malignant hyperthermia susceptibility. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.027512461).
BP6
Variant 1-201040302-G-T is Benign according to our data. Variant chr1-201040302-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 474000.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CACNA1SNM_000069.3 linkuse as main transcriptc.5299C>A p.Pro1767Thr missense_variant 43/44 ENST00000362061.4 NP_000060.2
LOC101929305XR_922410.3 linkuse as main transcriptn.1378-1553G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CACNA1SENST00000362061.4 linkuse as main transcriptc.5299C>A p.Pro1767Thr missense_variant 43/441 NM_000069.3 ENSP00000355192 P2
ENST00000415359.1 linkuse as main transcriptn.211-1553G>T intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152208
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000220
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000236
AC:
59
AN:
250530
Hom.:
0
AF XY:
0.000258
AC XY:
35
AN XY:
135510
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00199
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000283
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000161
AC:
236
AN:
1461520
Hom.:
0
Cov.:
33
AF XY:
0.000173
AC XY:
126
AN XY:
727064
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000201
Gnomad4 ASJ exome
AF:
0.00191
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000147
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152208
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000220
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000327
Hom.:
0
Bravo
AF:
0.000178
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000247
AC:
30
EpiCase
AF:
0.000545
EpiControl
AF:
0.000415

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJul 17, 2023In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously reported as pathogenic or benign in association with neurodevelopmental disorders to our knowledge; This variant is associated with the following publications: (PMID: 32859249) -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2019- -
Hypokalemic periodic paralysis, type 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Malignant hyperthermia, susceptibility to, 5;C3714580:Hypokalemic periodic paralysis, type 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 25, 2024- -
Malignant hyperthermia, susceptibility to, 5 Benign:1
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthNov 09, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.067
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
6.0
DANN
Benign
0.85
DEOGEN2
Benign
0.022
T;T
Eigen
Benign
-0.98
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.022
N
LIST_S2
Benign
0.54
T;T
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.028
T;T
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Benign
0.20
.;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-1.6
N;N
REVEL
Benign
0.26
Sift
Uncertain
0.0070
D;D
Sift4G
Benign
0.068
T;T
Polyphen
0.0010
.;B
Vest4
0.052
MVP
0.85
MPC
0.12
ClinPred
0.041
T
GERP RS
-1.6
Varity_R
0.11
gMVP
0.15

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs200434921; hg19: chr1-201009430; API