rs140742485

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_014846.4(WASHC5):​c.2430G>C​(p.Lys810Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000279 in 1,613,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

WASHC5
NM_014846.4 missense

Scores

1
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.11
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.774

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
WASHC5NM_014846.4 linkc.2430G>C p.Lys810Asn missense_variant Exon 20 of 29 ENST00000318410.12 NP_055661.3 Q12768

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
WASHC5ENST00000318410.12 linkc.2430G>C p.Lys810Asn missense_variant Exon 20 of 29 1 NM_014846.4 ENSP00000318016.7 Q12768
WASHC5ENST00000517845.5 linkc.1986G>C p.Lys662Asn missense_variant Exon 18 of 27 2 ENSP00000429676.1 E7EQI7
WASHC5ENST00000530856.1 linkn.77G>C non_coding_transcript_exon_variant Exon 2 of 3 3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152164
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000438
AC:
11
AN:
251338
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135832
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000968
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000280
AC:
41
AN:
1461776
Hom.:
0
Cov.:
31
AF XY:
0.0000248
AC XY:
18
AN XY:
727190
show subpopulations
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:
0.0000360
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152164
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000450
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

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

Submissions by phenotype

Ritscher-Schinzel syndrome;C1863704:Hereditary spastic paraplegia 8 Uncertain:1
Oct 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces lysine, which is basic and polar, with asparagine, which is neutral and polar, at codon 810 of the WASHC5 protein (p.Lys810Asn). This variant is present in population databases (rs140742485, gnomAD 0.009%). This missense change has been observed in individual(s) with clinical features of hereditary spastic paraplegia (internal data). ClinVar contains an entry for this variant (Variation ID: 216683). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt WASHC5 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.49
BayesDel_addAF
Benign
-0.087
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.37
T;.
Eigen
Benign
0.19
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Benign
0.083
D
MetaRNN
Pathogenic
0.77
D;D
MetaSVM
Benign
-1.0
T
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-1.5
N;N
REVEL
Uncertain
0.47
Sift
Benign
0.54
T;T
Sift4G
Benign
0.68
T;T
Polyphen
0.99
D;P
Vest4
0.77
MutPred
0.53
Loss of methylation at K810 (P = 3e-04);.;
MVP
0.89
MPC
0.86
ClinPred
0.17
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.17
gMVP
0.62

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs140742485; hg19: chr8-126059523; API