X-70035434-G-C
Variant names:
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP3
The NM_001399.5(EDA):c.1001G>C(p.Arg334Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 21)
Consequence
EDA
NM_001399.5 missense
NM_001399.5 missense
Scores
9
3
5
Clinical Significance
Conservation
PhyloP100: 9.25
Genes affected
EDA (HGNC:3157): (ectodysplasin A) The protein encoded by this gene is a type II membrane protein that can be cleaved by furin to produce a secreted form. The encoded protein, which belongs to the tumor necrosis factor family, acts as a homotrimer and may be involved in cell-cell signaling during the development of ectodermal organs. Defects in this gene are a cause of ectodermal dysplasia, anhidrotic, which is also known as X-linked hypohidrotic ectodermal dysplasia. Several transcript variants encoding many different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 5 ACMG points.
PM1
In a chain Ectodysplasin-A, secreted form (size 231) in uniprot entity EDA_HUMAN there are 42 pathogenic changes around while only 0 benign (100%) in NM_001399.5
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.806
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
EDA | ENST00000374552.9 | c.1001G>C | p.Arg334Pro | missense_variant | Exon 8 of 8 | 1 | NM_001399.5 | ENSP00000363680.4 | ||
EDA | ENST00000374553.6 | c.995G>C | p.Arg332Pro | missense_variant | Exon 8 of 8 | 1 | ENSP00000363681.2 | |||
EDA | ENST00000524573.5 | c.986G>C | p.Arg329Pro | missense_variant | Exon 8 of 8 | 1 | ENSP00000432585.1 | |||
EDA | ENST00000616899.1 | c.605G>C | p.Arg202Pro | missense_variant | Exon 7 of 7 | 5 | ENSP00000481963.1 |
Frequencies
GnomAD3 genomes Cov.: 21
GnomAD3 genomes
Cov.:
21
GnomAD4 exome Cov.: 31
GnomAD4 exome
Cov.:
31
GnomAD4 genome Cov.: 21
GnomAD4 genome
Cov.:
21
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Mar 17, 2015 | Variant classified as Uncertain Significance - Favor Pathogenic. The p.Arg334Pro variant in EDA has been identified by our laboratory in 1 male with XLHED and 2 mildly affected females in the same family. It was absent from large population studies. Another change at this position (p.Arg334His) has been reported in one Asian individual with non-syndromic oligodontia and his clinically unaffected m other (consistent with skewed X-inactivation patterns and subclinical phenotypes in females) (Song 2009), but the p.Arg334His variant was also present in 0.9% ( 66/5927, including 9 males) of East Asian chromosomes by the Exome Aggregation C onsortium (ExAC, http://exac.broadinstitute.org, dbSNP rs142948132). While this high frequency in the general population suggests a less likely pathogenic role, the clinical description of individuals included in this database is not provid ed. Thus, it is possible that some of these individuals manifest some features o f HED and that the p.Arg334His variant represents a common pathogenic variant in the East Asian population. Computational prediction tools and conservation anal ysis do not provide strong support for or against an impact of the p.Arg334Pro v ariant to the protein. In summary, while there is some suspicion for a pathogeni c role due to its segregation in affected family members, the clinical significa nce of the p.Arg334Pro variant is uncertain. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
.;D;.;.
FATHMM_MKL
Pathogenic
D
LIST_S2
Pathogenic
D;D;D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D;D;D
MetaSVM
Pathogenic
D
MutationAssessor
Benign
.;L;.;.
PrimateAI
Uncertain
T
PROVEAN
Benign
N;N;N;.
REVEL
Pathogenic
Sift
Benign
D;.;.;.
Sift4G
Benign
T;T;T;T
Polyphen
D;D;D;.
Vest4
MutPred
0.75
.;Loss of catalytic residue at R334 (P = 0.0383);.;.;
MVP
MPC
2.2
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at