chr8-60742997-G-T

Position:

chr8-60742997-G-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_017780.4(CHD7):c.1565G>T(p.Gly522Val) variant causes a missense change. The variant allele was found at a frequency of 0.000764 in 1,613,694 control chromosomes in the GnomAD database, including 31 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. G522G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0012 ( 3 hom., cov: 32)

Exomes 𝑓: 0.00072 ( 28 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: 4.70

Variant links:

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]

CHD7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CHD7. . Gene score misZ 3.2193 (greater than the threshold 3.09). Trascript score misZ 3.9401 (greater than threshold 3.09). GenCC has associacion of gene with Kallmann syndrome, hypogonadotropic hypogonadism 5 with or without anosmia, CHARGE syndrome, hypogonadotropic hypogonadism, Omenn syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.0037179887).

BP6

Variant 8-60742997-G-T is Benign according to our data. Variant chr8-60742997-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 241189.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-60742997-G-T is described in Lovd as [Benign]. Variant chr8-60742997-G-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00122 (186/152146) while in subpopulation EAS AF= 0.0319 (165/5168). AF 95% confidence interval is 0.028. There are 3 homozygotes in gnomad4. There are 94 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 186 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CHD7	NM_017780.4 linkuse as main transcript	c.1565G>T	p.Gly522Val	missense_variant	2/38	ENST00000423902.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CHD7	ENST00000423902.7 linkuse as main transcript	c.1565G>T	p.Gly522Val	missense_variant	2/38	5	NM_017780.4	P1	Q9P2D1-1

Frequencies

GnomAD3 genomes

AF:

0.00123

AC:

187

AN:

152028

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0320

Gnomad SAS

AF:

0.000623

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00431

GnomAD3 exomes

AF:

0.00267

AC:

663

AN:

248666

Hom.:

AF XY:

0.00243

AC XY:

328

AN XY:

134904

show subpopulations

Gnomad AFR exome

AF:

0.0000648

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0347

Gnomad SAS exome

AF:

0.000590

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000888

Gnomad OTH exome

AF:

0.00248

GnomAD4 exome

AF:

0.000716

AC:

1047

AN:

1461548

Hom.:

Cov.:

AF XY:

0.000664

AC XY:

483

AN XY:

727028

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0186

Gnomad4 SAS exome

AF:

0.000603

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.00393

GnomAD4 genome

AF:

0.00122

AC:

186

AN:

152146

Hom.:

Cov.:

AF XY:

0.00126

AC XY:

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0319

Gnomad4 SAS

AF:

0.000623

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00426

Alfa

AF:

0.00146

Hom.:

Bravo

AF:

0.00152

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.00229

AC:

278

Asia WGS

AF:

0.0140

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000594

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Feb 04, 2016	- -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Aug 23, 2017	p.Gly522Val in exon 2 of CHD7: This variant is not expected to have clinical sig nificance because it has been identified in 3.10% (265/8554) of East Asian chrom osomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org ; dbSNP rs142962579). -
Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Apr 09, 2023	- -

CHARGE syndrome

Benign:3

Benign, criteria provided, single submitter	clinical testing	Center for Human Genetics, Inc, Center for Human Genetics, Inc	Nov 01, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 28, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia	Sep 05, 2016	- -

Inborn genetic diseases

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 02, 2017

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Mar 03, 2015

This variant is associated with the following publications: (PMID: 31042289, 30653986, 29304373, 28209183) -

Hypogonadotropic hypogonadism 5 with or without anosmia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Premature ovarian failure

Benign:1

Benign, criteria provided, single submitter

research

Lupski Lab, Baylor-Hopkins CMG, Baylor College of Medicine

Apr 22, 2019

This variant was identified as homozygous in a female individual with hypergonadotropic hypogonadism and obesity. It was considered in conjuction with homozygous variants in MCM9 and PRKD1 as causitive for the phenotype. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.11

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.13

T;.;.

Eigen

Benign

0.0091

Eigen_PC

Uncertain

0.22

FATHMM_MKL

Uncertain

0.79

LIST_S2

Uncertain

0.88

D;T;D

MetaRNN

Benign

0.0037

T;T;T

MetaSVM

Benign

-0.64

MutationAssessor

Benign

0.81

L;L;L

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-0.47

N;N;N

REVEL

Benign

0.10

Sift

Benign

0.050

D;D;D

Sift4G

Benign

0.45

T;D;T

Polyphen

0.099

B;.;.

Vest4

0.62

MVP

0.88

MPC

0.56

ClinPred

0.016

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.11

gMVP

0.31

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over