8-125024280-T-C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_014846.4(WASHC5):​c.*337A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000844 in 355,368 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

WASHC5
NM_014846.4 3_prime_UTR

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.867

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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WASHC5NM_014846.4 linkc.*337A>G 3_prime_UTR_variant Exon 29 of 29 ENST00000318410.12 NP_055661.3 Q12768
WASHC5NM_001330609.2 linkc.*337A>G 3_prime_UTR_variant Exon 28 of 28 NP_001317538.1 E7EQI7
WASHC5XM_047422502.1 linkc.*337A>G 3_prime_UTR_variant Exon 30 of 30 XP_047278458.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
WASHC5ENST00000318410.12 linkc.*337A>G 3_prime_UTR_variant Exon 29 of 29 1 NM_014846.4 ENSP00000318016.7 Q12768
WASHC5ENST00000519042.2 linkn.956A>G non_coding_transcript_exon_variant Exon 3 of 3 2
WASHC5ENST00000517845.5 linkc.*337A>G 3_prime_UTR_variant Exon 27 of 27 2 ENSP00000429676.1 E7EQI7

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000113
AC:
23
AN:
203048
Hom.:
0
Cov.:
0
AF XY:
0.000101
AC XY:
11
AN XY:
108892
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
6256
American (AMR)
AF:
0.00
AC:
0
AN:
9066
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
5598
East Asian (EAS)
AF:
0.00
AC:
0
AN:
10376
South Asian (SAS)
AF:
0.00
AC:
0
AN:
30306
European-Finnish (FIN)
AF:
0.000112
AC:
1
AN:
8890
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
780
European-Non Finnish (NFE)
AF:
0.000182
AC:
22
AN:
120792
Other (OTH)
AF:
0.00
AC:
0
AN:
10984
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.536
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000460
AC:
7
AN:
152320
Hom.:
0
Cov.:
32
AF XY:
0.0000537
AC XY:
4
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41564
American (AMR)
AF:
0.00
AC:
0
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.446
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000139
Hom.:
0
Bravo
AF:
0.0000680
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 8 Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.31
CADD
Benign
12
DANN
Benign
0.89
PhyloP100
0.87
Mutation Taster
=98/2
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: rs567758658; hg19: chr8-126036522; API