rs886039917

Positions:

• chr12-6588383-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1 PM2 PP2 PP3_Moderate PP5

The NM_001273.5(CHD4):​c.3380G>A​(p.Arg1127Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CHD4 NM_001273.5 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.79

Genes affected

CHD4 (HGNC:1919): (chromodomain helicase DNA binding protein 4) The product of this gene belongs to the SNF2/RAD54 helicase family. It represents the main component of the nucleosome remodeling and deacetylase complex and plays an important role in epigenetic transcriptional repression. Patients with dermatomyositis develop antibodies against this protein. Somatic mutations in this gene are associated with serous endometrial tumors. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2014]

ENSG00000285238 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PM1: In a domain Helicase C-terminal (size 149) in uniprot entity CHD4_HUMAN there are 6 pathogenic changes around while only 0 benign (100%) in NM_001273.5
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CHD4. . Gene score misZ 6.3412 (greater than the threshold 3.09). Trascript score misZ 8.6114 (greater than threshold 3.09). GenCC has associacion of gene with syndromic intellectual disability, Sifrim-Hitz-Weiss syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.915
• PP5: Variant 12-6588383-C-T is Pathogenic according to our data. Variant chr12-6588383-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 266126.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr12-6588383-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CHD4	NM_001273.5	c.3380G>A	p.Arg1127Gln	missense_variant	23/40	ENST00000544040.7	NP_001264.2
CHD4	NM_001297553.2	c.3359G>A	p.Arg1120Gln	missense_variant	22/39		NP_001284482.1
CHD4	NM_001363606.2	c.3341G>A	p.Arg1114Gln	missense_variant	23/40		NP_001350535.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CHD4	ENST00000544040.7	c.3380G>A	p.Arg1127Gln	missense_variant	23/40	5	NM_001273.5	ENSP00000440542.2
ENSG00000285238	ENST00000644480.2	n.3359G>A		non_coding_transcript_exon_variant	23/55			ENSP00000493629.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Sifrim-Hitz-Weiss syndrome Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Aug 20, 2018

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.49	D
BayesDel_noAF	Pathogenic	0.46
CADD	Pathogenic	34
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.25	.;T;.;D;.;.;.;.;.;.;.;.
Eigen	Pathogenic	0.82
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.99	D;D;D;D;D;D;D;D;D;D;D;D
M_CAP	Pathogenic	0.48	D
MetaRNN	Pathogenic	0.91	D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Pathogenic	0.95	D
MutationAssessor	Uncertain	2.7	.;.;.;M;.;.;.;.;M;.;.;.
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-3.5	.;D;.;.;.;.;.;.;.;.;.;.
REVEL	Pathogenic	0.93
Sift	Uncertain	0.0010	.;D;.;.;.;.;.;.;.;.;.;.
Sift4G	Pathogenic	0.0010	.;D;.;.;.;.;.;.;.;.;.;.
Polyphen		1.0, 0.98, 0.98	.;.;D;D;.;.;.;.;D;.;.;.
Vest4		0.96
MutPred		0.73		.;.;.;Loss of methylation at R1127 (P = 0.0155);.;.;.;.;Loss of methylation at R1127 (P = 0.0155);.;Loss of methylation at R1127 (P = 0.0155);.;
MVP		0.99
MPC		1.8
ClinPred		0.98	D
GERP RS		5.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.8
Varity_R		0.66
gMVP		0.99

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.17		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs886039917; hg19: chr12-6697549; COSMIC: COSV58895679; COSMIC: COSV58895679;