rs754387957

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_001377540.1(SLMAP):​c.928G>A​(p.Ala310Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000169 in 1,593,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A310V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

SLMAP
NM_001377540.1 missense

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.36

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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2956973).
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.928G>A p.Ala310Thr missense_variant Exon 10 of 25 ENST00000671191.1 NP_001364469.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLMAPENST00000671191.1 linkc.928G>A p.Ala310Thr missense_variant Exon 10 of 25 NM_001377540.1 ENSP00000499458.1 A0A590UJK3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152122
Hom.:
0
Cov.:
31
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250724
AF XY:
0.00000737
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000180
AC:
26
AN:
1440994
Hom.:
0
Cov.:
26
AF XY:
0.0000209
AC XY:
15
AN XY:
718286
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33038
American (AMR)
AF:
0.00
AC:
0
AN:
44562
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26034
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39526
South Asian (SAS)
AF:
0.000245
AC:
21
AN:
85764
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53370
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5678
European-Non Finnish (NFE)
AF:
9.15e-7
AC:
1
AN:
1093352
Other (OTH)
AF:
0.0000670
AC:
4
AN:
59670
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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
AF:
0.00000657
AC:
1
AN:
152122
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74310
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41432
American (AMR)
AF:
0.00
AC:
0
AN:
15248
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

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

Submissions by phenotype

Brugada syndrome Uncertain:1
Dec 22, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 310 of the SLMAP protein (p.Ala310Thr). This variant is present in population databases (rs754387957, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SLMAP-related conditions. ClinVar contains an entry for this variant (Variation ID: 411194). 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 disruptive. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.38
BayesDel_addAF
Benign
-0.0062
T
BayesDel_noAF
Uncertain
-0.040
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.18
.;.;.;T;.;T
Eigen
Uncertain
0.49
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
.;D;D;D;D;D
M_CAP
Benign
0.022
T
MetaRNN
Benign
0.30
T;T;T;T;T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Uncertain
2.2
M;M;M;M;M;.
PhyloP100
9.4
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-1.4
N;N;N;N;N;D
REVEL
Benign
0.22
Sift
Benign
0.13
T;T;T;T;T;D
Sift4G
Benign
0.46
T;T;T;T;T;D
Polyphen
0.69
P;P;P;P;B;.
Vest4
0.83
MutPred
0.14
Gain of glycosylation at Y307 (P = 0.0806);Gain of glycosylation at Y307 (P = 0.0806);Gain of glycosylation at Y307 (P = 0.0806);Gain of glycosylation at Y307 (P = 0.0806);Gain of glycosylation at Y307 (P = 0.0806);.;
MVP
0.30
MPC
0.72
ClinPred
0.50
D
GERP RS
5.6
PromoterAI
-0.0059
Neutral
Varity_R
0.22
gMVP
0.34
Mutation Taster
=168/132
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: rs754387957; hg19: chr3-57847775; API