Genetic Variant CHD9:p.Thr234Arg (chr16-53156790-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001308319.2(CHD9):c.701C>G(p.Thr234Arg) 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 1,461,540 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T234M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CHD9
NM_001308319.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.16

Publications

0 publications found

Variant links:

Genes affected

CHD9 (HGNC:25701): (chromodomain helicase DNA binding protein 9) Predicted to enable ATP binding activity; ATP-dependent activity, acting on DNA; and DNA binding activity. Predicted to be involved in DNA duplex unwinding and chromatin organization. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

CHD9 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1439875).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001308319.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CHD9	NM_001308319.2	MANE Select	c.701C>G	p.Thr234Arg	missense	Exon 2 of 39	NP_001295248.1	Q3L8U1-1
CHD9	NM_001382353.1		c.701C>G	p.Thr234Arg	missense	Exon 2 of 39	NP_001369282.1	Q3L8U1-1
CHD9	NM_001352127.3		c.701C>G	p.Thr234Arg	missense	Exon 2 of 39	NP_001339056.1	Q3L8U1-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CHD9	ENST00000447540.6	TSL:5 MANE Select	c.701C>G	p.Thr234Arg	missense	Exon 2 of 39	ENSP00000396345.2	Q3L8U1-1
CHD9	ENST00000398510.7	TSL:1	c.701C>G	p.Thr234Arg	missense	Exon 1 of 38	ENSP00000381522.3	Q3L8U1-1
CHD9	ENST00000564845.5	TSL:1	c.701C>G	p.Thr234Arg	missense	Exon 2 of 39	ENSP00000455307.1	Q3L8U1-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461540

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727046

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53264

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111852

Other (OTH)

AF:

0.0000166

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Uncertain

0.021

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.046

Eigen

Benign

-0.10

Eigen_PC

Benign

-0.10

FATHMM_MKL

Benign

0.68

LIST_S2

Benign

0.82

M_CAP

Benign

0.072

MetaRNN

Benign

0.14

MetaSVM

Uncertain

0.072

MutationAssessor

Benign

0.81

PhyloP100

2.2

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.4

REVEL

Benign

0.28

Sift

Benign

0.056

Sift4G

Benign

0.082

Polyphen

0.43

Vest4

0.32

MutPred

0.11

Gain of MoRF binding (P = 0.0268)

MVP

0.58

MPC

0.19

ClinPred

0.29

GERP RS

6.0

Varity_R

0.071

gMVP

0.48

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over