3-57757713-A-G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_001377540.1(SLMAP):​c.62A>G​(p.His21Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000178 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

SLMAP
NM_001377540.1 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.27

Publications

0 publications found
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]
SLMAP Gene-Disease associations (from GenCC):
  • Brugada syndrome
    Inheritance: Unknown, AD Classification: SUPPORTIVE, LIMITED, NO_KNOWN Submitted by: Genomics England PanelApp, Orphanet, ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High AC in GnomAdExome4 at 26 Unknown,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLMAPNM_001377540.1 linkc.62A>G p.His21Arg missense_variant Exon 2 of 25 ENST00000671191.1 NP_001364469.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLMAPENST00000671191.1 linkc.62A>G p.His21Arg missense_variant Exon 2 of 25 NM_001377540.1 ENSP00000499458.1 A0A590UJK3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251430
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.0000206
AC XY:
15
AN XY:
727244
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000225
AC:
25
AN:
1112012
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
2
4
6
8
10
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
Cov.:
32
Alfa
AF:
0.0000868
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
May 27, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.H21R variant (also known as c.62A>G), located in coding exon 1 of the SLMAP gene, results from an A to G substitution at nucleotide position 62. The histidine at codon 21 is replaced by arginine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.013
T
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
26
DANN
Benign
0.90
DEOGEN2
Benign
0.14
.;.;.;T;.
Eigen
Benign
0.029
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.96
.;D;D;D;D
M_CAP
Benign
0.013
T
MetaRNN
Uncertain
0.43
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.28
N;N;N;N;N
PhyloP100
9.3
PrimateAI
Pathogenic
0.88
D
PROVEAN
Benign
-0.75
N;N;N;N;N
REVEL
Uncertain
0.36
Sift
Benign
0.74
T;T;T;T;T
Sift4G
Benign
0.90
T;T;T;T;T
Polyphen
0.87
P;P;B;D;P
Vest4
0.78
MutPred
0.28
Gain of glycosylation at Y23 (P = 0.0041);Gain of glycosylation at Y23 (P = 0.0041);Gain of glycosylation at Y23 (P = 0.0041);Gain of glycosylation at Y23 (P = 0.0041);Gain of glycosylation at Y23 (P = 0.0041);
MVP
0.64
MPC
2.0
ClinPred
0.22
T
GERP RS
5.6
PromoterAI
-0.087
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.42
gMVP
0.68
Mutation Taster
=13/87
disease causing

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

Other links and lift over

dbSNP: rs754847103; hg19: chr3-57743440; API