rs758134774

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM2PP2PP3BP6_Moderate

The NM_001271.4(CHD2):​c.2998C>T​(p.Arg1000Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,460,668 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 Likely benign (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CHD2
NM_001271.4 missense

Scores

4
12
3

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 4.60
Variant links:
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CHD2. . Gene score misZ 5.2052 (greater than the threshold 3.09). Trascript score misZ 6.0204 (greater than threshold 3.09). GenCC has associacion of gene with developmental and epileptic encephalopathy 94, complex neurodevelopmental disorder, myoclonic-astatic epilepsy, Lennox-Gastaut syndrome.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.77
BP6
Variant 15-92981389-C-T is Benign according to our data. Variant chr15-92981389-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 474380.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHD2NM_001271.4 linkuse as main transcriptc.2998C>T p.Arg1000Trp missense_variant 24/39 ENST00000394196.9 NP_001262.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHD2ENST00000394196.9 linkuse as main transcriptc.2998C>T p.Arg1000Trp missense_variant 24/395 NM_001271.4 ENSP00000377747 P1O14647-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1460668
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726642
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy 94 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 05, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Uncertain
0.064
T
BayesDel_noAF
Benign
-0.15
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.78
.;D
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Uncertain
0.25
D
MetaRNN
Pathogenic
0.77
D;D
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.6
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.78
T
PROVEAN
Pathogenic
-6.5
.;D
REVEL
Uncertain
0.31
Sift
Uncertain
0.0010
.;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
1.0
D;D
Vest4
0.63
MutPred
0.45
Loss of disorder (P = 6e-04);Loss of disorder (P = 6e-04);
MVP
0.60
MPC
2.6
ClinPred
0.79
D
GERP RS
4.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.6
Varity_R
0.44
gMVP
0.55

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs758134774; hg19: chr15-93524619; COSMIC: COSV67712076; COSMIC: COSV67712076; API