rs267606724

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM1BP4_ModerateBP6

The NM_017780.4(CHD7):​c.4795C>G​(p.Gln1599Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000137 in 1,461,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q1599R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

1
5
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 6.06

Publications

10 publications found
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 Gene-Disease associations (from GenCC):
  • CHARGE syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia, Broad Center for Mendelian Genomics, ClinGen, G2P
  • hypogonadotropic hypogonadism 5 with or without anosmia
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • hypogonadotropic hypogonadism
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Kallmann syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Omenn syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 7 uncertain in NM_017780.4
BP4
Computational evidence support a benign effect (MetaRNN=0.19498801).
BP6
Variant 8-60841997-C-G is Benign according to our data. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796. Variant chr8-60841997-C-G is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 1313796.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHD7NM_017780.4 linkc.4795C>G p.Gln1599Glu missense_variant Exon 21 of 38 ENST00000423902.7 NP_060250.2 Q9P2D1-1Q6ZWF9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CHD7ENST00000423902.7 linkc.4795C>G p.Gln1599Glu missense_variant Exon 21 of 38 5 NM_017780.4 ENSP00000392028.1 Q9P2D1-1
CHD7ENST00000524602.5 linkc.1717-20232C>G intron_variant Intron 2 of 4 1 ENSP00000437061.1 Q9P2D1-4
CHD7ENST00000695853.1 linkn.4795C>G non_coding_transcript_exon_variant Exon 21 of 37 ENSP00000512218.1 A0A8Q3WKT9

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.0000121
AC:
3
AN:
248200
AF XY:
0.0000149
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000267
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461644
Hom.:
0
Cov.:
31
AF XY:
0.0000165
AC XY:
12
AN XY:
727096
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53388
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000180
AC:
20
AN:
1111844
Other (OTH)
AF:
0.00
AC:
0
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000135
Hom.:
0
Bravo
AF:
0.0000189
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.00000827
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Dec 31, 2020
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

CHARGE syndrome;C3552553:Hypogonadotropic hypogonadism 5 with or without anosmia Uncertain:1
Apr 16, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

CHARGE syndrome Benign:1
Aug 01, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.053
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
23
DANN
Benign
0.83
DEOGEN2
Benign
0.095
T
Eigen
Benign
0.13
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.40
T
MutationAssessor
Benign
-0.41
N
PhyloP100
6.1
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-0.59
N
REVEL
Uncertain
0.34
Sift
Benign
0.71
T
Sift4G
Benign
0.69
T
Polyphen
0.073
B
Vest4
0.34
MutPred
0.28
Gain of helix (P = 0.0078);
MVP
0.84
MPC
0.99
ClinPred
0.21
T
GERP RS
5.6
Varity_R
0.15
gMVP
0.50
Mutation Taster
=25/75
disease causing

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

Other links and lift over

dbSNP: rs267606724; hg19: chr8-61754556; API