3-57913179-A-G

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001377540.1(SLMAP):​c.2042A>G​(p.Lys681Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000384 in 1,576,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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 0.00026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00040 ( 0 hom. )

Consequence

SLMAP
NM_001377540.1 missense

Scores

4
15

Clinical Significance

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

Conservation

PhyloP100: 2.22
Variant links:
Genes affected
SLMAP (HGNC:16643): (sarcolemma associated protein) This gene encodes a component of a conserved striatin-interacting phosphatase and kinase complex. Striatin family complexes participate in a variety of cellular processes including signaling, cell cycle control, cell migration, Golgi assembly, and apoptosis. The protein encoded by this gene is a coiled-coil, tail-anchored membrane protein with a single C-terminal transmembrane domain that is posttranslationally inserted into membranes. Mutations in this gene are associated with Brugada syndrome, a cardiac channelopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2015]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.046085775).
BP6
Variant 3-57913179-A-G is Benign according to our data. Variant chr3-57913179-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 411199.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}. Variant chr3-57913179-A-G is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 39 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLMAPNM_001377540.1 linkuse as main transcriptc.2042A>G p.Lys681Arg missense_variant 21/25 ENST00000671191.1 NP_001364469.1
LOC105377103XR_007095927.1 linkuse as main transcriptn.364+4005T>C intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLMAPENST00000671191.1 linkuse as main transcriptc.2042A>G p.Lys681Arg missense_variant 21/25 NM_001377540.1 ENSP00000499458 P4

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152238
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.000382
Gnomad OTH
AF:
0.000955
GnomAD3 exomes
AF:
0.000228
AC:
57
AN:
249910
Hom.:
0
AF XY:
0.000244
AC XY:
33
AN XY:
135132
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.000146
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000407
Gnomad OTH exome
AF:
0.000657
GnomAD4 exome
AF:
0.000398
AC:
566
AN:
1423722
Hom.:
0
Cov.:
26
AF XY:
0.000371
AC XY:
263
AN XY:
709806
show subpopulations
Gnomad4 AFR exome
AF:
0.0000609
Gnomad4 AMR exome
AF:
0.000113
Gnomad4 ASJ exome
AF:
0.0000391
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000381
Gnomad4 NFE exome
AF:
0.000496
Gnomad4 OTH exome
AF:
0.000340
GnomAD4 genome
AF:
0.000256
AC:
39
AN:
152356
Hom.:
0
Cov.:
32
AF XY:
0.000188
AC XY:
14
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000382
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.000402
Hom.:
0
Bravo
AF:
0.000306
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000165
AC:
20

ClinVar

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

Submissions by phenotype

Brugada syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 13, 2023This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 647 of the SLMAP protein (p.Lys647Arg). This variant is present in population databases (rs150439110, gnomAD 0.04%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with clinical features of Brugada syndrome (PMID: 30847666). ClinVar contains an entry for this variant (Variation ID: 411199). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpJun 04, 2024Variant summary: SLMAP c.1940A>G (p.Lys647Arg) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00023 in 249910 control chromosomes. The observed variant frequency is approximately 40 fold of the estimated maximal expected allele frequency for a pathogenic variant in SLMAP causing Arrhythmia phenotype (6.3e-06). c.1940A>G has been reported in the literature in individuals affected with Brugada syndrome (van Lint_2019). These report(s) do not provide unequivocal conclusions about association of the variant with Arrhythmia. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 30847666). ClinVar contains an entry for this variant (Variation ID: 411199). Based on the evidence outlined above, the variant was classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
.;.;T;.;T;T
Eigen
Benign
0.16
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.85
.;D;D;D;T;T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.046
T;T;T;T;T;T
MetaSVM
Benign
-0.67
T
MutationAssessor
Benign
1.4
.;.;L;.;.;.
MutationTaster
Benign
0.57
D;N;N;N;N;N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.74
N;N;N;N;N;N
REVEL
Benign
0.037
Sift
Uncertain
0.015
D;D;D;T;D;D
Sift4G
Benign
0.10
T;T;T;T;T;T
Polyphen
0.20
B;B;B;B;.;P
Vest4
0.084
MVP
0.70
MPC
0.16
ClinPred
0.063
T
GERP RS
4.9
Varity_R
0.13
gMVP
0.053

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs150439110; hg19: chr3-57898906; API