Genetic Variant SLA2:p.Arg135His (chr20-36615353-C-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_032214.4(SLA2):c.404G>A(p.Arg135His) variant causes a missense change. The variant allele was found at a frequency of 0.000341 in 1,613,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00036 ( 0 hom. )

Consequence

SLA2
NM_032214.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.26

Variant links:

Genes affected

SLA2 (HGNC:17329): (Src like adaptor 2) This gene encodes a member of the SLAP family of adapter proteins. The encoded protein may play an important receptor-proximal role in downregulating T and B cell-mediated responses and inhibits antigen receptor-induced calcium mobilization. This protein interacts with Cas-Br-M (murine) ecotropic retroviral transforming sequence c. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

SLA2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.835

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLA2	NM_032214.4 link	c.404G>A	p.Arg135His	missense_variant	Exon 6 of 8	ENST00000262866.9	NP_115590.1	Q9H6Q3-1
SLA2	NM_175077.3 link	c.404G>A	p.Arg135His	missense_variant	Exon 6 of 8		NP_778252.1	Q9H6Q3-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLA2	ENST00000262866.9 link	c.404G>A	p.Arg135His	missense_variant	Exon 6 of 8	1	NM_032214.4	ENSP00000262866.4		Q9H6Q3-1
SLA2	ENST00000360672.2 link	c.404G>A	p.Arg135His	missense_variant	Exon 6 of 8	5		ENSP00000353890.2		Q9H6Q3-2

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152084

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.000235

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000203

AC:

AN:

251090

Hom.:

AF XY:

0.000265

AC XY:

AN XY:

135764

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 SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000388

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000362

AC:

529

AN:

1461762

Hom.:

Cov.:

AF XY:

0.000348

AC XY:

253

AN XY:

727176

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000174

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000439

Gnomad4 OTH exome

AF:

0.000348

GnomAD4 genome

AF:

0.000145

AC:

AN:

152084

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74288

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000235

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000196

Hom.:

Bravo

AF:

0.000162

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 30, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.404G>A (p.R135H) alteration is located in exon 6 (coding exon 5) of the SLA2 gene. This alteration results from a G to A substitution at nucleotide position 404, causing the arginine (R) at amino acid position 135 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.61

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Pathogenic

0.26

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.85

D;.

Eigen

Pathogenic

0.78

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.91

D;D

M_CAP

Uncertain

0.21

MetaRNN

Pathogenic

0.83

D;D

MetaSVM

Pathogenic

0.91

MutationAssessor

Uncertain

2.7

M;M

PrimateAI

Uncertain

0.57

PROVEAN

Uncertain

-3.5

D;D

REVEL

Uncertain

0.56

Sift

Uncertain

0.0020

D;D

Sift4G

Uncertain

0.0070

D;D

Polyphen

1.0

D;D

Vest4

0.82

MVP

0.95

MPC

0.95

ClinPred

0.33

GERP RS

6.2

Varity_R

0.84

gMVP

0.67

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over