rs1555439526

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001271.4(CHD2):c.878G>A(p.Ser293Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,770 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S293T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CHD2
NM_001271.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.66

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: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03181395).

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.878G>A	p.Ser293Asn	missense	Exon 9 of 39	NP_001262.3
	CHD2	NM_001042572.3		c.878G>A	p.Ser293Asn	missense	Exon 9 of 13	NP_001036037.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CHD2	ENST00000394196.9	TSL:5 MANE Select	c.878G>A	p.Ser293Asn	missense	Exon 9 of 39	ENSP00000377747.4
CHD2	ENST00000626874.2	TSL:1	c.878G>A	p.Ser293Asn	missense	Exon 9 of 38	ENSP00000486629.1
CHD2	ENST00000420239.7	TSL:1	c.878G>A	p.Ser293Asn	missense	Exon 9 of 13	ENSP00000406581.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461770

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727170

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111948

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

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

Cov.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Developmental and epileptic encephalopathy 94 (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

(source)

DANN

Benign

0.23

DEOGEN2

Benign

0.15

Eigen

Benign

-0.79

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.76

M_CAP

Benign

0.0051

MetaRNN

Benign

0.032

MetaSVM

Benign

-0.99

MutationAssessor

Benign

-2.5

PhyloP100

2.7

PrimateAI

Benign

0.45

PROVEAN

Benign

2.8

REVEL

Benign

0.14

Sift

Benign

1.0

Sift4G

Benign

1.0

Polyphen

0.0010

Vest4

0.14

MutPred

0.32

Loss of glycosylation at S293 (P = 0.0027)

MVP

0.30

MPC

0.45

ClinPred

0.081

GERP RS

4.6

PromoterAI

0.011

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.072

gMVP

0.12

Mutation Taster

=95/5

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

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over