chr8-125083738-A-G
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Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate
The NM_014846.4(WASHC5):āc.161T>Cā(p.Ile54Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000348 in 1,611,128 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 (ā ).
Frequency
Genomes: š 0.000026 ( 0 hom., cov: 32)
Exomes š: 0.000036 ( 0 hom. )
Consequence
WASHC5
NM_014846.4 missense
NM_014846.4 missense
Scores
10
7
1
Clinical Significance
Conservation
PhyloP100: 8.99
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]
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ACMG classification
Classification made for transcript
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, 0.86
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152224Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000319 AC: 8AN: 250488Hom.: 0 AF XY: 0.0000295 AC XY: 4AN XY: 135426
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GnomAD4 exome AF: 0.0000356 AC: 52AN: 1458786Hom.: 0 Cov.: 30 AF XY: 0.0000386 AC XY: 28AN XY: 725806
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GnomAD4 genome AF: 0.0000263 AC: 4AN: 152342Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3AN XY: 74502
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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
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 17, 2015 | This sequence change replaces isoleucine with threonine at codon 54 of the KIAA0196 protein (p.Ile54Thr). The isoleucine residue is moderately conserved and there is a moderate physicochemical difference between isoleucine and threonine. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "possibly damaging"; Align-GVGD: "Class C0"). In summary, this is a rare missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. This variant has not been published in the literature and is present in population databases (rs199936194, 0.05%). - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Pathogenic
D
Eigen
Uncertain
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D
REVEL
Pathogenic
Sift
Uncertain
D
Sift4G
Uncertain
D
Polyphen
P
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at