rs111400494
Variant summary
Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2
The NM_020631.6(PLEKHG5):c.88C>T(p.Arg30Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00461 in 1,613,838 control chromosomes in the GnomAD database, including 27 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R30H) has been classified as Uncertain significance.
Frequency
Consequence
NM_020631.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -20 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00269 AC: 410AN: 152246Hom.: 1 Cov.: 32
GnomAD3 exomes AF: 0.00240 AC: 601AN: 250318Hom.: 2 AF XY: 0.00241 AC XY: 327AN XY: 135534
GnomAD4 exome AF: 0.00481 AC: 7035AN: 1461474Hom.: 26 Cov.: 33 AF XY: 0.00474 AC XY: 3445AN XY: 727064
GnomAD4 genome AF: 0.00268 AC: 409AN: 152364Hom.: 1 Cov.: 32 AF XY: 0.00250 AC XY: 186AN XY: 74508
ClinVar
Submissions by phenotype
not specified Benign:3
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
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Variant summary: PLEKHG5 c.88C>T (p.Arg30Cys) results in a non-conservative amino acid change in the encoded protein sequence. Three of four in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.0024 in 250318 control chromosomes in the gnomAD database, including 2 homozygotes. The observed variant frequency is approximately 2.15 fold of the estimated maximal expected allele frequency for a pathogenic variant in PLEKHG5 causing Distal Spinal Muscular Atrophy, Autosomal Recessive 4 phenotype (0.0011). To our knowledge, no occurrence of c.88C>T in individuals affected with Distal Spinal Muscular Atrophy, Autosomal Recessive 4 and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 245659). Based on the evidence outlined above, the variant was classified as likely benign. -
not provided Benign:2
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PLEKHG5: BS2 -
Neuronopathy, distal hereditary motor, autosomal recessive 4 Benign:1
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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Inborn genetic diseases Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Neuronopathy, distal hereditary motor, autosomal recessive 4;C3809309:Charcot-Marie-Tooth disease recessive intermediate C Benign:1
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PLEKHG5-related disorder Benign:1
This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at