rs370464322

Variant names:

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP2BP4_StrongBP6_Very_StrongBS2

The NM_001271.4(CHD2):c.1214C>T(p.Pro405Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000876 in 1,585,934 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P405P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

CHD2
NM_001271.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 1.65

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]

CHD2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PP2

Missense variant in the CHD2 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 57 curated pathogenic missense variants (we use a threshold of 10). The gene has 104 curated benign missense variants. Gene score misZ: 5.2052 (above the threshold of 3.09). Trascript score misZ: 6.0204 (above the threshold of 3.09). GenCC associations: The gene is linked to developmental and epileptic encephalopathy 94, complex neurodevelopmental disorder, myoclonic-astatic epilepsy, Lennox-Gastaut syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.019199848).

BP6

Variant 15-92946053-C-T is Benign according to our data. Variant chr15-92946053-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 389781.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 45 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHD2	NM_001271.4 link	c.1214C>T	p.Pro405Leu	missense_variant	Exon 12 of 39	ENST00000394196.9	NP_001262.3	O14647-1
CHD2	NM_001042572.3 link	c.1214C>T	p.Pro405Leu	missense_variant	Exon 12 of 13		NP_001036037.1	O14647-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHD2	ENST00000394196.9 link	c.1214C>T	p.Pro405Leu	missense_variant	Exon 12 of 39	5	NM_001271.4	ENSP00000377747.4		O14647-1

Frequencies

GnomAD3 genomes

AF:

0.000296

AC:

AN:

152090

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000869

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000109

AC:

AN:

239314

Hom.:

AF XY:

0.0000848

AC XY:

AN XY:

129662

show subpopulations

Gnomad AFR exome

AF:

0.000882

Gnomad AMR exome

AF:

0.000162

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000211

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000909

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000656

AC:

AN:

1433726

Hom.:

Cov.:

AF XY:

0.0000577

AC XY:

AN XY:

711102

show subpopulations

Gnomad4 AFR exome

AF:

0.00130

Gnomad4 AMR exome

AF:

0.000246

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.000159

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000164

Gnomad4 OTH exome

AF:

0.000152

GnomAD4 genome

AF:

0.000296

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74418

show subpopulations

Gnomad4 AFR

AF:

0.000867

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.0000449

Hom.:

Bravo

AF:

0.000340

ESP6500AA

AF:

0.000683

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000148

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Jul 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

CHD2: BS2 -

Dec 31, 2019

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 30564305) -

Inborn genetic diseases

Benign:1

Jan 22, 2025

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

CHD2-related disorder

Benign:1

Mar 12, 2024

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Developmental and epileptic encephalopathy 94

Benign:1

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.20

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.36

.;T;T;.;D;T

Eigen

Benign

-0.19

Eigen_PC

Benign

0.010

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.89

D;D;D;D;D;D

M_CAP

Benign

0.080

MetaRNN

Benign

0.019

T;T;T;T;T;T

MetaSVM

Uncertain

-0.26

MutationAssessor

Benign

1.1

L;L;.;L;.;.

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-2.1

.;N;.;N;.;.

REVEL

Benign

0.12

Sift

Uncertain

0.029

.;D;.;D;.;.

Sift4G

Uncertain

0.029

D;D;T;T;T;.

Polyphen

0.019

B;B;.;.;B;.

Vest4

0.39

MVP

0.54

MPC

0.51

ClinPred

0.020

GERP RS

5.2

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.2

Varity_R

0.089

gMVP

0.20

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over