rs79302359
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Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1
The NM_017780.4(CHD7):āc.2124T>Cā(p.Ser708=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0077 in 1,613,616 control chromosomes in the GnomAD database, including 307 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā ā ).
Frequency
Genomes: š 0.019 ( 80 hom., cov: 32)
Exomes š: 0.0065 ( 227 hom. )
Consequence
CHD7
NM_017780.4 synonymous
NM_017780.4 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 1.73
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]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -21 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 8-60795013-T-C is Benign according to our data. Variant chr8-60795013-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 95777.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-60795013-T-C is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=1.73 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0533 is higher than 0.05.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
CHD7 | NM_017780.4 | c.2124T>C | p.Ser708= | synonymous_variant | 4/38 | ENST00000423902.7 | NP_060250.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
CHD7 | ENST00000423902.7 | c.2124T>C | p.Ser708= | synonymous_variant | 4/38 | 5 | NM_017780.4 | ENSP00000392028 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0190 AC: 2885AN: 152164Hom.: 80 Cov.: 32
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GnomAD3 exomes AF: 0.0125 AC: 3107AN: 248850Hom.: 84 AF XY: 0.0139 AC XY: 1877AN XY: 135028
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GnomAD4 exome AF: 0.00652 AC: 9529AN: 1461334Hom.: 227 Cov.: 31 AF XY: 0.00785 AC XY: 5704AN XY: 726920
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GnomAD4 genome AF: 0.0190 AC: 2890AN: 152282Hom.: 80 Cov.: 32 AF XY: 0.0191 AC XY: 1425AN XY: 74454
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ClinVar
Significance: Benign/Likely benign
Submissions summary: Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:7
Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Aug 08, 2018 | The p.Ser708Ser variant in CHD7 is classified as benign because it is present in 5.5% (1328/23984) of African chromosomes by the Genome Aggregation Database (gn omAD, http://gnomad.broadinstitute.org). ACMG/AMP Criteria applied: BA1. - |
Benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | May 13, 2019 | Variant summary: CHD7 c.2124T>C alters a non-conserved nucleotide resulting in a synonymous change. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.012 in 248850 control chromosomes in the gnomAD database, including 84 homozygotes. The observed variant frequency is approximately 9988.34 fold of the estimated maximal expected allele frequency for a pathogenic variant in CHD7 causing Congenital Heart Disease phenotype (1.3e-06), strongly suggesting that the variant is benign. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. - |
Benign, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
Benign, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Feb 08, 2013 | - - |
Benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Oct 28, 2014 | - - |
not provided Benign:2
Benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 03, 2015 | - - |
Benign, criteria provided, single submitter | not provided | Breakthrough Genomics, Breakthrough Genomics | - | - - |
CHARGE syndrome Benign:1
Benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 31, 2024 | - - |
Inborn genetic diseases Benign:1
Benign, criteria provided, single submitter | clinical testing | Ambry Genetics | May 06, 2016 | 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. - |
CHARGE syndrome;C3552553:Hypogonadotropic hypogonadism 5 with or without anosmia Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Sep 01, 2021 | - - |
Hypogonadotropic hypogonadism 5 with or without anosmia Benign:1
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Computational scores
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Name
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at