rs149758819

Positions:

• chr3-57849792-A-G

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 0P and 15B. BP4_Moderate BP6_Very_Strong BP7 BS2

The NM_001377540.1(SLMAP):​c.495A>G​(p.Leu165=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00255 in 1,573,820 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0024 (1 hom., cov: 32)
  • Exomes 𝑓: 0.0026 (10 hom.)
• Consequence: SLMAP NM_001377540.1 synonymous
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 1.86

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]

ACMG classification

Verdict is Benign. Variant got -15 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.45).
• BP6: Variant 3-57849792-A-G is Benign according to our data. Variant chr3-57849792-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 240723.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-57849792-A-G is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=1.86 with no splicing effect.
• BS2: High AC in GnomAd4 at 364 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLMAP	NM_001377540.1	c.495A>G	p.Leu165=	synonymous_variant	6/25	ENST00000671191.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLMAP	ENST00000671191.1	c.495A>G	p.Leu165=	synonymous_variant	6/25		NM_001377540.1	P4

Frequencies

GnomAD3 genomes AF: 0.00239 AC: 364 AN: 152220 Hom.: 1 Cov.: 32

Gnomad AFR AF: 0.000507

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000720

Gnomad ASJ AF: 0.00490

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.0103

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00291

Gnomad OTH AF: 0.00287

GnomAD3 exomes AF: 0.00285 AC: 715 AN: 251168 Hom.: 4 AF XY: 0.00287 AC XY: 389 AN XY: 135758

Gnomad AFR exome AF: 0.000800

Gnomad AMR exome AF: 0.00156

Gnomad ASJ exome AF: 0.00456

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000163

Gnomad FIN exome AF: 0.0104

Gnomad NFE exome AF: 0.00303

Gnomad OTH exome AF: 0.00457

GnomAD4 exome AF: 0.00257 AC: 3647 AN: 1421482 Hom.: 10 Cov.: 24 AF XY: 0.00243 AC XY: 1725 AN XY: 709912

Gnomad4 AFR exome AF: 0.000581

Gnomad4 AMR exome AF: 0.00148

Gnomad4 ASJ exome AF: 0.00471

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000164

Gnomad4 FIN exome AF: 0.00902

Gnomad4 NFE exome AF: 0.00261

Gnomad4 OTH exome AF: 0.00229

GnomAD4 genome AF: 0.00239 AC: 364 AN: 152338 Hom.: 1 Cov.: 32 AF XY: 0.00251 AC XY: 187 AN XY: 74502

Gnomad4 AFR AF: 0.000505

Gnomad4 AMR AF: 0.000719

Gnomad4 ASJ AF: 0.00490

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.0103

Gnomad4 NFE AF: 0.00291

Gnomad4 OTH AF: 0.00284

Alfa AF: 0.00294 Hom.: 1

Bravo AF: 0.00181

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.00267

EpiControl AF: 0.00320

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 12, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Brugada syndrome Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Nov 15, 2020

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.45
CADD	Benign	7.1
DANN	Benign	0.80
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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

Other links and lift over

dbSNP: rs149758819; hg19: chr3-57835519;