rs1290008555
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate
The NM_018972.4(GDAP1):c.338A>G(p.Lys113Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,552 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )
Consequence
GDAP1
NM_018972.4 missense
NM_018972.4 missense
Scores
1
6
12
Clinical Significance
Conservation
PhyloP100: 1.39
Genes affected
GDAP1 (HGNC:15968): (ganglioside induced differentiation associated protein 1) This gene encodes a member of the ganglioside-induced differentiation-associated protein family, which may play a role in a signal transduction pathway during neuronal development. Mutations in this gene have been associated with various forms of Charcot-Marie-Tooth Disease and neuropathy. Two transcript variants encoding different isoforms and a noncoding variant have been identified for this gene. [provided by RefSeq, Feb 2012]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM1
?
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_018972.4
PM2
?
Very rare variant in population databases, with high coverage;
BP4
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Computational evidence support a benign effect (MetaRNN=0.12834582).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GDAP1 | NM_018972.4 | c.338A>G | p.Lys113Arg | missense_variant | 3/6 | ENST00000220822.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GDAP1 | ENST00000220822.12 | c.338A>G | p.Lys113Arg | missense_variant | 3/6 | 1 | NM_018972.4 | P3 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152190Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251444Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135896
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GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461362Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727044
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152190Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74330
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Charcot-Marie-Tooth disease type 4A Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 30, 2023 | This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 113 of the GDAP1 protein (p.Lys113Arg). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with GDAP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 467758). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
Cadd
Benign
Dann
Uncertain
DEOGEN2
Benign
T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D
M_CAP
Uncertain
D
MetaRNN
Benign
T;T
MetaSVM
Uncertain
D
MutationAssessor
Benign
N;.
MutationTaster
Benign
D;D
PrimateAI
Benign
T
PROVEAN
Benign
N;N
REVEL
Uncertain
Sift
Benign
T;T
Sift4G
Benign
T;T
Polyphen
B;.
Vest4
MutPred
Loss of methylation at K113 (P = 0.015);.;
MVP
MPC
ClinPred
T
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