rs193922414

chrX-48685583-C-GchrX-48685583-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_000377.3(WAS):c.310C>G(p.Gln104Glu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 23)
• Consequence: WAS NM_000377.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.83

Genes affected

WAS (HGNC:12731): (WASP actin nucleation promoting factor) The Wiskott-Aldrich syndrome (WAS) family of proteins share similar domain structure, and are involved in transduction of signals from receptors on the cell surface to the actin cytoskeleton. The presence of a number of different motifs suggests that they are regulated by a number of different stimuli, and interact with multiple proteins. Recent studies have demonstrated that these proteins, directly or indirectly, associate with the small GTPase, Cdc42, known to regulate formation of actin filaments, and the cytoskeletal organizing complex, Arp2/3. Wiskott-Aldrich syndrome is a rare, inherited, X-linked, recessive disease characterized by immune dysregulation and microthrombocytopenia, and is caused by mutations in the WAS gene. The WAS gene product is a cytoplasmic protein, expressed exclusively in hematopoietic cells, which show signalling and cytoskeletal abnormalities in WAS patients. A transcript variant arising as a result of alternative promoter usage, and containing a different 5' UTR sequence, has been described, however, its full-length nature is not known. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a domain WH1 (size 109) in uniprot entity WASP_HUMAN there are 41 pathogenic changes around while only 5 benign (89%) in NM_000377.3
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WAS	NM_000377.3	c.310C>G	p.Gln104Glu	missense_variant	3/12	ENST00000376701.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WAS	ENST00000376701.5	c.310C>G	p.Gln104Glu	missense_variant	3/12	1	NM_000377.3	P2

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD3 exomes AF: 0.00000614 AC: 1 AN: 162759 Hom.: 0 AF XY: 0.0000190 AC XY: 1 AN XY: 52597

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: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000142

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 23

ExAC AF: 0.0000166 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.0
Cadd	Uncertain	24
Dann	Uncertain	0.99
DEOGEN2	Benign	0.40	T;D
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.93	D;D
M_CAP	Pathogenic	0.77	D
MetaRNN	Uncertain	0.60	D;D
MetaSVM	Pathogenic	1.1	D
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-1.7	N;N
REVEL	Uncertain	0.61
Sift	Benign	0.15	T;T
Sift4G	Uncertain	0.044	D;T
Polyphen		1.0	.;D
Vest4		0.36
MVP		0.96
MPC		1.6
ClinPred		0.77	D
GERP RS		5.0
Varity_R		0.43
gMVP		0.91

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs193922414; hg19: chrX-48543972;