rs79464415

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_014846.4(WASHC5):​c.867A>C​(p.Val289Val) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000898 in 1,556,028 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0045 ( 6 hom., cov: 32)
Exomes 𝑓: 0.00051 ( 5 hom. )

Consequence

WASHC5
NM_014846.4 splice_region, synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -0.377

Publications

0 publications found
Variant links:
Genes affected
WASHC5 (HGNC:28984): (WASH complex subunit 5) This gene encodes a 134 kDa protein named strumpellin that is predicted to have multiple transmembrane domains and a spectrin-repeat-containing domain. This ubiquitously expressed gene has its highest expression in skeletal muscle. The protein is named for Strumpell disease; a form of hereditary spastic paraplegia (HSP). Spastic paraplegias are a diverse group of disorders in which the autosomal dominant forms are characterized by progressive, lower extremity spasticity caused by axonal degeneration in the terminal portions of the longest descending and ascending corticospinal tracts. More than 30 loci (SPG1-33) have been implicated in hereditary spastic paraplegia diseases. [provided by RefSeq, Aug 2009]
WASHC5 Gene-Disease associations (from GenCC):
  • Ritscher-Schinzel syndrome 1
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp
  • hereditary spastic paraplegia 8
    Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • Ritscher-Schinzel syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 8-125075109-T-G is Benign according to our data. Variant chr8-125075109-T-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 219414.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.377 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0045 (686/152284) while in subpopulation AFR AF = 0.0161 (669/41578). AF 95% confidence interval is 0.0151. There are 6 homozygotes in GnomAd4. There are 296 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 6 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WASHC5NM_014846.4 linkc.867A>C p.Val289Val splice_region_variant, synonymous_variant Exon 8 of 29 ENST00000318410.12 NP_055661.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
WASHC5ENST00000318410.12 linkc.867A>C p.Val289Val splice_region_variant, synonymous_variant Exon 8 of 29 1 NM_014846.4 ENSP00000318016.7
WASHC5ENST00000517845.5 linkc.423A>C p.Val141Val splice_region_variant, synonymous_variant Exon 6 of 27 2 ENSP00000429676.1
WASHC5ENST00000523297.5 linkc.423A>C p.Val141Val splice_region_variant, synonymous_variant Exon 7 of 7 3 ENSP00000427946.1

Frequencies

GnomAD3 genomes
AF:
0.00451
AC:
686
AN:
152166
Hom.:
6
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0161
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000982
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:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00122
AC:
305
AN:
251020
AF XY:
0.000825
show subpopulations
Gnomad AFR exome
AF:
0.0164
Gnomad AMR exome
AF:
0.000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000507
AC:
712
AN:
1403744
Hom.:
5
Cov.:
24
AF XY:
0.000443
AC XY:
311
AN XY:
701790
show subpopulations
African (AFR)
AF:
0.0181
AC:
586
AN:
32288
American (AMR)
AF:
0.000851
AC:
38
AN:
44660
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25736
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39342
South Asian (SAS)
AF:
0.0000470
AC:
4
AN:
85088
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53272
Middle Eastern (MID)
AF:
0.00124
AC:
7
AN:
5646
European-Non Finnish (NFE)
AF:
0.00000472
AC:
5
AN:
1059242
Other (OTH)
AF:
0.00123
AC:
72
AN:
58470
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
35
70
105
140
175
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00450
AC:
686
AN:
152284
Hom.:
6
Cov.:
32
AF XY:
0.00398
AC XY:
296
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.0161
AC:
669
AN:
41578
American (AMR)
AF:
0.000981
AC:
15
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68002
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
37
73
110
146
183
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00207
Hom.:
0
Bravo
AF:
0.00527
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 8 Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

not specified Benign:1
Jun 19, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary spastic paraplegia 8;C4551776:Ritscher-Schinzel syndrome 1 Benign:1
Sep 13, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Ritscher-Schinzel syndrome;C1863704:Hereditary spastic paraplegia 8 Benign:1
Jan 21, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
6.1
DANN
Benign
0.55
PhyloP100
-0.38
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs79464415; hg19: chr8-126087351; API