rs755510106

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001271.4(CHD2):c.457C>G(p.Gln153Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000292 in 1,607,314 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q153R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

CHD2
NM_001271.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 2.17

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
developmental and epileptic encephalopathy 94
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
Lennox-Gastaut syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
myoclonic-astatic epilepsy
Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

CHD2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.034678638).

BP6

Variant 15-92937531-C-G is Benign according to our data. Variant chr15-92937531-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 411858.

BS2

High AC in GnomAdExome4 at 44 Unknown,AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001271.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHD2	NM_001271.4	MANE Select	c.457C>G	p.Gln153Glu	missense	Exon 6 of 39	NP_001262.3
	CHD2	NM_001042572.3		c.457C>G	p.Gln153Glu	missense	Exon 6 of 13	NP_001036037.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CHD2	ENST00000394196.9	TSL:5 MANE Select	c.457C>G	p.Gln153Glu	missense	Exon 6 of 39	ENSP00000377747.4
CHD2	ENST00000626874.2	TSL:1	c.457C>G	p.Gln153Glu	missense	Exon 6 of 38	ENSP00000486629.1
CHD2	ENST00000420239.7	TSL:1	c.457C>G	p.Gln153Glu	missense	Exon 6 of 13	ENSP00000406581.2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000246

AC:

AN:

243480

AF XY:

0.0000152

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000302

AC:

AN:

1455234

Hom.:

Cov.:

AF XY:

0.0000373

AC XY:

AN XY:

723720

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33020

American (AMR)

AF:

0.00

AC:

AN:

43182

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25928

East Asian (EAS)

AF:

0.00

AC:

AN:

39566

South Asian (SAS)

AF:

0.000483

AC:

AN:

84860

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53254

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5742

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1109564

Other (OTH)

AF:

0.0000333

AC:

AN:

60118

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74290

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41412

American (AMR)

AF:

0.00

AC:

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

South Asian (SAS)

AF:

0.000621

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10578

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000508

Hom.:

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Developmental and epileptic encephalopathy 94 (1)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.31

CADD

Benign

(source)

DANN

Benign

0.70

DEOGEN2

Benign

0.041

Eigen

Benign

-0.50

Eigen_PC

Benign

-0.27

FATHMM_MKL

Uncertain

0.90

LIST_S2

Benign

0.45

M_CAP

Benign

0.043

MetaRNN

Benign

0.035

MetaSVM

Benign

-0.65

MutationAssessor

Benign

0.0

PhyloP100

2.2

PrimateAI

Benign

0.21

PROVEAN

Benign

0.39

REVEL

Benign

0.13

Sift

Benign

1.0

Sift4G

Benign

0.88

Polyphen

0.0020

Vest4

0.14

MutPred

0.36

Gain of helix (P = 0.0093)

MVP

0.31

MPC

0.52

ClinPred

0.034

GERP RS

3.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.045

gMVP

0.11

Mutation Taster

=91/9

polymorphism

(source)

Splicing

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over