6-110101926-T-C

Position:

• chr6-110101926-T-C

Variant summary

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

The NM_003931.3(WASF1):​c.1184A>G​(p.Gln395Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,459,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: WASF1 NM_003931.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.52

Genes affected

WASF1 (HGNC:12732): (WASP family member 1) The protein encoded by this gene, a member of the Wiskott-Aldrich syndrome protein (WASP)-family, plays a critical role downstream of Rac, a Rho-family small GTPase, in regulating the actin cytoskeleton required for membrane ruffling. It has been shown to associate with an actin nucleation core Arp2/3 complex while enhancing actin polymerization in vitro. Wiskott-Aldrich syndrome is a disease of the immune system, likely due to defects in regulation of actin cytoskeleton. Multiple alternatively spliced transcript variants encoding the same protein have been found 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=0.20229477).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
WASF1	NM_003931.3	c.1184A>G	p.Gln395Arg	missense_variant	10/11	ENST00000392589.6
WASF1	NM_001024934.2	c.1184A>G	p.Gln395Arg	missense_variant	9/10
WASF1	NM_001024935.2	c.1184A>G	p.Gln395Arg	missense_variant	9/10
WASF1	NM_001024936.2	c.1184A>G	p.Gln395Arg	missense_variant	8/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
WASF1	ENST00000392589.6	c.1184A>G	p.Gln395Arg	missense_variant	10/11	5	NM_003931.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1459098 Hom.: 0 Cov.: 32 AF XY: 0.00000276 AC XY: 2 AN XY: 725580

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000329 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

May 27, 2022

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.095	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	20
DANN	Benign	0.93
DEOGEN2	Benign	0.092	T;T;T;T;T
Eigen	Uncertain	0.20
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Benign	0.76	.;.;.;.;T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.20	T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.69	N;N;N;N;N
MutationTaster	Benign	0.94	D;D;D;D;D
PrimateAI	Uncertain	0.77	T
PROVEAN	Benign	-0.57	N;N;N;N;N
REVEL	Benign	0.096
Sift	Benign	0.045	D;D;D;D;D
Sift4G	Benign	0.54	T;T;T;T;T
Polyphen		0.81	P;P;P;P;P
Vest4		0.41
MVP		0.25
MPC		0.60
ClinPred		0.31	T
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.091
gMVP		0.12

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: rs1332874835; hg19: chr6-110423129;