chr19-6754967-G-A

Position:

• chr19-6754967-G-A

Variant summary

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

The NM_005490.3(SH2D3A):​c.845C>T​(p.Pro282Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,740 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: SH2D3A NM_005490.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.105

Genes affected

SH2D3A (HGNC:16885): (SH2 domain containing 3A) Predicted to enable guanyl-nucleotide exchange factor activity and phosphotyrosine residue binding activity. Predicted to be involved in positive regulation of peptidyl-serine phosphorylation. [provided by Alliance of Genome Resources, Apr 2022]

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=0.0835838).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SH2D3A	NM_005490.3	c.845C>T	p.Pro282Leu	missense_variant	5/10	ENST00000245908.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SH2D3A	ENST00000245908.11	c.845C>T	p.Pro282Leu	missense_variant	5/10	1	NM_005490.3	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461740 Hom.: 0 Cov.: 42 AF XY: 0.00000275 AC XY: 2 AN XY: 727168

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000450

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 17, 2023

The c.845C>T (p.P282L) alteration is located in exon 5 (coding exon 4) of the SH2D3A gene. This alteration results from a C to T substitution at nucleotide position 845, causing the proline (P) at amino acid position 282 to be replaced by a leucine (L). 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	0.079
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	1.9
DANN	Benign	0.60
Eigen	Benign	-1.0
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.10	N
LIST_S2	Benign	0.72	T;T
M_CAP	Benign	0.0070	T
MetaRNN	Benign	0.084	T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.27	T
PROVEAN	Pathogenic	-5.2	D;D
REVEL	Benign	0.014
Sift	Benign	0.097	T;T
Sift4G	Benign	0.19	T;T
Polyphen		0.0010	.;B
Vest4		0.20
MutPred		0.45		.;Gain of loop (P = 0.0097);
MVP		0.39
MPC		0.27
ClinPred		0.46	T
GERP RS		-1.5
Varity_R		0.11
gMVP		0.30

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: rs1969567817; hg19: chr19-6754978;