8-60856558-G-T

Variant names:

• chr8-60856558-G-T
• NM_017780.4:c.7278G>T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_017780.4(CHD7):​c.7278G>T​(p.Gln2426His) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,694 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. Q2426Q) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CHD7 NM_017780.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.14

Genes affected

CHD7 (HGNC:20626): (chromodomain helicase DNA binding protein 7) This gene encodes a protein that contains several helicase family domains. Mutations in this gene have been found in some patients with the CHARGE syndrome. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHD7	NM_017780.4	c.7278G>T	p.Gln2426His	missense_variant	Exon 34 of 38	ENST00000423902.7	NP_060250.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHD7	ENST00000423902.7	c.7278G>T	p.Gln2426His	missense_variant	Exon 34 of 38	5	NM_017780.4	ENSP00000392028.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461694 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727132

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000375

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	0.0013	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.18	T
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.058	D
MetaRNN	Uncertain	0.67	D
MetaSVM	Benign	-0.79	T
MutationAssessor	Benign	1.6	L
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.18
Sift	Uncertain	0.024	D
Sift4G	Benign	0.073	T
Polyphen		0.99	D
Vest4		0.78
MutPred		0.19		Loss of helix (P = 0.0444);
MVP		0.59
MPC		0.52
ClinPred		0.86	D
GERP RS		3.3
Varity_R		0.20
gMVP		0.52

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr8-61769117;