rs143503275

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2

The NM_001271.4(CHD2):​c.4025G>A​(p.Arg1342Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000565 in 1,609,370 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1342W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000059 ( 0 hom. )

Consequence

CHD2
NM_001271.4 missense

Scores

6
11
1

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 7.54

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP6
Variant 15-93000528-G-A is Benign according to our data. Variant chr15-93000528-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 567224.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 5 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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD2
NM_001271.4
MANE Select
c.4025G>Ap.Arg1342Gln
missense
Exon 32 of 39NP_001262.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD2
ENST00000394196.9
TSL:5 MANE Select
c.4025G>Ap.Arg1342Gln
missense
Exon 32 of 39ENSP00000377747.4
CHD2
ENST00000626874.2
TSL:1
c.4025G>Ap.Arg1342Gln
missense
Exon 32 of 38ENSP00000486629.1
CHD2
ENST00000628118.2
TSL:1
n.*1294G>A
non_coding_transcript_exon
Exon 23 of 23ENSP00000515059.1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152092
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000564
AC:
14
AN:
248438
AF XY:
0.0000595
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000896
Gnomad ASJ exome
AF:
0.000807
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000590
AC:
86
AN:
1457278
Hom.:
0
Cov.:
30
AF XY:
0.0000455
AC XY:
33
AN XY:
725158
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33182
American (AMR)
AF:
0.0000915
AC:
4
AN:
43704
Ashkenazi Jewish (ASJ)
AF:
0.00108
AC:
28
AN:
25912
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39638
South Asian (SAS)
AF:
0.0000233
AC:
2
AN:
85704
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53290
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.0000441
AC:
49
AN:
1109998
Other (OTH)
AF:
0.0000499
AC:
3
AN:
60110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000329
AC:
5
AN:
152092
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74292
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41404
American (AMR)
AF:
0.0000655
AC:
1
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.0000831
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0000659
AC:
8

ClinVar

ClinVar submissions as Germline
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
1
Developmental and epileptic encephalopathy 94 (1)
-
-
1
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.10
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.60
D
Eigen
Pathogenic
0.79
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Pathogenic
0.48
D
MetaRNN
Uncertain
0.43
T
MetaSVM
Uncertain
0.71
D
MutationAssessor
Uncertain
2.4
M
PhyloP100
7.5
PrimateAI
Uncertain
0.68
T
PROVEAN
Uncertain
-2.8
D
REVEL
Uncertain
0.59
Sift
Uncertain
0.012
D
Sift4G
Uncertain
0.057
T
Polyphen
1.0
D
Vest4
0.42
MVP
0.82
MPC
0.97
ClinPred
0.89
D
GERP RS
5.2
RBP_binding_hub_radar
1.1
RBP_regulation_power_radar
3.0
Varity_R
0.25
gMVP
0.41
Mutation Taster
=59/41
polymorphism

Splicing

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

Publications

Other links and lift over

dbSNP: rs143503275; hg19: chr15-93543758; API