9-15998-A-G

Position:

• chr9-15998-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001378090.1(WASHC1):​c.1106T>C​(p.Ile369Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 26)
  • Exomes 𝑓: 0.0000016 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: WASHC1 NM_001378090.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.71

Genes affected

WASHC1 (HGNC:24361): (WASH complex subunit 1) Enables alpha-tubulin binding activity and ubiquitin protein ligase binding activity. Involved in several processes, including Arp2/3 complex-mediated actin nucleation; endosomal transport; and positive regulation of pseudopodium assembly. Located in early endosome. Part of WASH complex. Colocalizes with exocyst. [provided by Alliance of Genome Resources, Apr 2022]

WASHC1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.934

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
WASHC1	NM_001378090.1	c.1106T>C	p.Ile369Thr	missense_variant	9/11	ENST00000696149.1	NP_001365019.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
WASHC1	ENST00000696149.1	c.1106T>C	p.Ile369Thr	missense_variant	9/11		NM_001378090.1	ENSP00000512441.1
WASHC1	ENST00000442898.5	c.1106T>C	p.Ile369Thr	missense_variant	9/11	2		ENSP00000485627.1
WASHC1	ENST00000696150.1	n.1370T>C		non_coding_transcript_exon_variant	9/9

Frequencies

GnomAD3 genomes Cov.: 26

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000165 AC: 2 AN: 1215616 Hom.: 0 Cov.: 25 AF XY: 0.00000164 AC XY: 1 AN XY: 608720

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: 0.00

Gnomad4 OTH exome AF: 0.0000387

GnomAD4 genome Cov.: 26

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

May 03, 2023

The c.1106T>C (p.I369T) alteration is located in exon 9 (coding exon 8) of the WASH1 gene. This alteration results from a T to C substitution at nucleotide position 1106, causing the isoleucine (I) at amino acid position 369 to be replaced by a threonine (T). 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	Uncertain	0.54
BayesDel_addAF	Pathogenic	0.51	D
BayesDel_noAF	Pathogenic	0.49
CADD	Pathogenic	26
DANN	Benign	0.93
DEOGEN2	Uncertain	0.48	T
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Uncertain	0.95	D
MetaRNN	Pathogenic	0.93	D
MutationAssessor	Pathogenic	3.5	H
PrimateAI	Pathogenic	0.93	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.95
MVP		0.34
GERP RS		1.3
Varity_R		0.056
gMVP		0.68

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: chr9-15998;