8-74350462-A-G
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_018972.4(GDAP1):c.1A>G(p.Met1?) variant causes a start lost change. The variant allele was found at a frequency of 0.00000138 in 1,449,192 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 Pathogenic (★).
Frequency
Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
GDAP1
NM_018972.4 start_lost
NM_018972.4 start_lost
Scores
5
4
7
Clinical Significance
Conservation
PhyloP100: 3.60
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 Pathogenic. Variant got 12 ACMG points.
PVS1
?
Start lost variant, no new inframe start found.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 8-74350462-A-G is Pathogenic according to our data. Variant chr8-74350462-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 2423924.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GDAP1 | NM_018972.4 | c.1A>G | p.Met1? | start_lost | 1/6 | ENST00000220822.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GDAP1 | ENST00000220822.12 | c.1A>G | p.Met1? | start_lost | 1/6 | 1 | NM_018972.4 | P3 |
Frequencies
GnomAD3 genomes ? Cov.: 34
GnomAD3 genomes
?
Cov.:
34
GnomAD3 exomes AF: 0.00000803 AC: 2AN: 249032Hom.: 0 AF XY: 0.00000741 AC XY: 1AN XY: 134890
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GnomAD4 exome AF: 0.00000138 AC: 2AN: 1449192Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0AN XY: 721832
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GnomAD4 genome ? Cov.: 34
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Cov.:
34
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Charcot-Marie-Tooth disease type 4A Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Sep 08, 2023 | This sequence change affects the initiator methionine of the GDAP1 mRNA. The next in-frame methionine is located at codon 69. This variant is present in population databases (no rsID available, gnomAD 0.003%). Disruption of the initiator codon has been observed in individuals with autosomal recessive Charcot-Marie-Tooth disease (PMID: 29184355, 33179230). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 2423924). For these reasons, this variant has been classified as Pathogenic. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Benign
Dann
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Uncertain
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationTaster
Benign
D;D
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Pathogenic
D
Sift4G
Benign
T
Polyphen
B
Vest4
MutPred
Gain of loop (P = 0.0851);
MVP
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
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