rs1060503518
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Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 5P and 1B. PM1PM2PP2BP4
The NM_001271.4(CHD2):āc.1693A>Gā(p.Ile565Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,614,062 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 (ā ā ).
Frequency
Genomes: š 0.000013 ( 0 hom., cov: 33)
Exomes š: 0.0000014 ( 0 hom. )
Consequence
CHD2
NM_001271.4 missense
NM_001271.4 missense
Scores
6
9
Clinical Significance
Conservation
PhyloP100: 3.14
Genes affected
CHD2 (HGNC:1917): (chromodomain helicase DNA binding protein 2) The CHD family of proteins is characterized by the presence of chromo (chromatin organization modifier) domains and SNF2-related helicase/ATPase domains. CHD genes alter gene expression possibly by modification of chromatin structure thus altering access of the transcriptional apparatus to its chromosomal DNA template. Alternatively spliced transcript variants encoding distinct 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 4 ACMG points.
PM1
?
In a domain Helicase ATP-binding (size 170) in uniprot entity CHD2_HUMAN there are 12 pathogenic changes around while only 4 benign (75%) in NM_001271.4
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, CHD2
BP4
?
Computational evidence support a benign effect (MetaRNN=0.30159682).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CHD2 | NM_001271.4 | c.1693A>G | p.Ile565Val | missense_variant | 14/39 | ENST00000394196.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CHD2 | ENST00000394196.9 | c.1693A>G | p.Ile565Val | missense_variant | 14/39 | 5 | NM_001271.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152202Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461860Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727234
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152202Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74366
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Athena Diagnostics | Oct 10, 2018 | - - |
Developmental and epileptic encephalopathy 94 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Feb 05, 2022 | This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 565 of the CHD2 protein (p.Ile565Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CHD2-related conditions. ClinVar contains an entry for this variant (Variation ID: 411853). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CHD2 protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D
M_CAP
Benign
D
MetaRNN
Benign
T;T
MetaSVM
Uncertain
T
MutationAssessor
Benign
N;N
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
Sift4G
Benign
T;T
Polyphen
B;B
Vest4
MutPred
Loss of catalytic residue at M569 (P = 0.0309);Loss of catalytic residue at M569 (P = 0.0309);
MVP
MPC
1.2
ClinPred
T
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at