20-36641268-T-G

Variant names:

• chr20-36641268-T-G
• NM_032214.4:c.68A>C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_032214.4(SLA2):​c.68A>C​(p.Gln23Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 30)
• Consequence: SLA2 NM_032214.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0540

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06889424).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLA2	NM_032214.4	c.68A>C	p.Gln23Pro	missense_variant	Exon 2 of 8	ENST00000262866.9	NP_115590.1
SLA2	NM_175077.3	c.68A>C	p.Gln23Pro	missense_variant	Exon 2 of 8		NP_778252.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLA2	ENST00000262866.9	c.68A>C	p.Gln23Pro	missense_variant	Exon 2 of 8	1	NM_032214.4	ENSP00000262866.4
SLA2	ENST00000360672.2	c.68A>C	p.Gln23Pro	missense_variant	Exon 2 of 8	5		ENSP00000353890.2

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 30

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Oct 29, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.68A>C (p.Q23P) alteration is located in exon 2 (coding exon 1) of the SLA2 gene. This alteration results from a A to C substitution at nucleotide position 68, causing the glutamine (Q) at amino acid position 23 to be replaced by a proline (P). 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	Benign	0.057
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	5.3
DANN	Benign	0.85
DEOGEN2	Benign	0.052	T;.
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.058	N
LIST_S2	Benign	0.40	T;T
M_CAP	Benign	0.0051	T
MetaRNN	Benign	0.069	T;T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	1.0	L;L
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.13	N;N
REVEL	Benign	0.018
Sift	Benign	0.058	T;T
Sift4G	Benign	0.22	T;T
Polyphen		0.0	B;B
Vest4		0.21
MutPred		0.21		Gain of relative solvent accessibility (P = 0.1571);Gain of relative solvent accessibility (P = 0.1571);
MVP		0.23
MPC		0.28
ClinPred		0.044	T
GERP RS		-0.91
Varity_R		0.11
gMVP		0.33

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-35269671;