chr1-6142185-G-C

Variant names:

• chr1-6142185-G-C
• NM_015557.3:c.2379C>G
• CHD5 p.Asn793Lys

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_015557.3(CHD5):​c.2379C>G​(p.Asn793Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CHD5 NM_015557.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.280
• Publications: 0 publications found

Genes affected

CHD5 (HGNC:16816): (chromodomain helicase DNA binding protein 5) This gene encodes a member of the chromodomain helicase DNA-binding protein family. Members of this family are characterized by a chromodomain, a helicase ATP-binding domain and an additional functional domain. This gene encodes a neuron-specific protein that may function in chromatin remodeling and gene transcription. This gene is a potential tumor suppressor gene that may play a role in the development of neuroblastoma. [provided by RefSeq, Feb 2012]

CHD5 Gene-Disease associations (from GenCC):

• parenti-mignot neurodevelopmental syndrome

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• schizophrenia

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.909

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015557.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHD5	NM_015557.3	MANE Select	c.2379C>G	p.Asn793Lys	missense	Exon 15 of 42	NP_056372.1	Q8TDI0

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHD5	ENST00000262450.8	TSL:1 MANE Select	c.2379C>G	p.Asn793Lys	missense	Exon 15 of 42	ENSP00000262450.3	Q8TDI0
	CHD5	ENST00000462991.5	TSL:1	n.525C>G		non_coding_transcript_exon	Exon 4 of 31	ENSP00000466706.1	K7EMY3
	CHD5	ENST00000496404.1	TSL:2	n.2379C>G		non_coding_transcript_exon	Exon 15 of 34	ENSP00000433676.1	F2Z2R5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Uncertain	0.045	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	16
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.70	D
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.69
FATHMM_MKL	Benign	0.68	D
LIST_S2	Uncertain	0.93	D
M_CAP	Uncertain	0.18	D
MetaRNN	Pathogenic	0.91	D
MetaSVM	Uncertain	0.21	D
MutationAssessor	Benign	0.70	N
PhyloP100		-0.28
PrimateAI	Pathogenic	0.86	D
PROVEAN	Pathogenic	-5.7	D
REVEL	Uncertain	0.55
Sift	Benign	0.074	T
Sift4G	Uncertain	0.056	T
Varity_R		0.43
gMVP		0.97
Mutation Taster		=15/85	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr1-6202245;