12-105143146-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_015275.3(WASHC4):c.1913G>A(p.Arg638His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000603 in 1,609,356 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R638C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

WASHC4
NM_015275.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 10.0

Publications

5 publications found

Variant links:

Genes affected

WASHC4 (HGNC:29174): (WASH complex subunit 4) This gene encodes a component of the WASH complex, which functions in the intracellular transport of endosomes. Mutations in this gene have been detected in individuals with autosomal recessive cognitive disability. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

WASHC4 Gene-Disease associations (from GenCC):

autosomal recessive non-syndromic intellectual disability
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
intellectual disability, autosomal recessive 43
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
schizophrenia
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

WASHC4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000597 (87/1457472) while in subpopulation MID AF = 0.000695 (4/5758). AF 95% confidence interval is 0.000236. There are 0 homozygotes in GnomAdExome4. There are 40 alleles in the male GnomAdExome4 subpopulation. Median coverage is 28. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WASHC4	NM_015275.3 link	c.1913G>A	p.Arg638His	missense_variant	Exon 20 of 33	ENST00000332180.10	NP_056090.1	Q2M389-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WASHC4	ENST00000332180.10 link	c.1913G>A	p.Arg638His	missense_variant	Exon 20 of 33	1	NM_015275.3	ENSP00000328062.6		Q2M389-1

Frequencies

GnomAD3 genomes

AF:

0.0000658

AC:

AN:

151884

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000737

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.0000604

AC:

AN:

248298

AF XY:

0.0000594

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000204

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad FIN exome

AF:

0.0000465

Gnomad NFE exome

AF:

0.0000267

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000597

AC:

AN:

1457472

Hom.:

Cov.:

AF XY:

0.0000552

AC XY:

AN XY:

725254

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33364

American (AMR)

AF:

0.000179

AC:

AN:

44644

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26050

East Asian (EAS)

AF:

0.0000253

AC:

AN:

39572

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86100

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53352

Middle Eastern (MID)

AF:

0.000695

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.0000632

AC:

AN:

1108414

Other (OTH)

AF:

0.0000332

AC:

AN:

60218

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.420

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000658

AC:

AN:

151884

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74172

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41390

American (AMR)

AF:

0.000131

AC:

AN:

15228

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10592

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000737

AC:

AN:

67864

Other (OTH)

AF:

0.000479

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000793

ExAC

AF:

0.0000331

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:2

May 24, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1913G>A (p.R638H) alteration is located in exon 20 (coding exon 20) of the KIAA1033 gene. This alteration results from a G to A substitution at nucleotide position 1913, causing the arginine (R) at amino acid position 638 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Apr 07, 2017

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1

Jul 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

WASHC4: PM2:Supporting -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.0039

T;T

Eigen

Uncertain

0.68

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D

M_CAP

Benign

0.010

MetaRNN

Uncertain

0.61

D;D

MetaSVM

Benign

-0.97

PhyloP100

PrimateAI

Pathogenic

0.83

PROVEAN

Benign

-1.5

N;.

REVEL

Benign

0.23

Sift

Benign

0.039

D;.

Sift4G

Benign

0.16

T;T

Polyphen

0.98

D;.

Vest4

0.76

MVP

0.78

MPC

0.55

ClinPred

0.22

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.59

Mutation Taster

=77/23

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over