rs767043440

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM1BP6BS2

The NM_017780.4(CHD7):​c.3064A>G​(p.Ile1022Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,734 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000068 ( 0 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

3
11
5

Clinical Significance

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

Conservation

PhyloP100: 9.32
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM1
In a domain Helicase ATP-binding (size 174) in uniprot entity CHD7_HUMAN there are 15 pathogenic changes around while only 1 benign (94%) in NM_017780.4
BP6
Variant 8-60822609-A-G is Benign according to our data. Variant chr8-60822609-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 459545.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHD7NM_017780.4 linkc.3064A>G p.Ile1022Val missense_variant Exon 12 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.3064A>G p.Ile1022Val missense_variant Exon 12 of 38 5 NM_017780.4 ENSP00000392028.1 Q9P2D1-1
CHD7ENST00000524602.5 linkc.1717-39620A>G intron_variant Intron 2 of 4 1 ENSP00000437061.1 Q9P2D1-4
CHD7ENST00000525508.1 linkc.3064A>G p.Ile1022Val missense_variant Exon 11 of 12 5 ENSP00000436027.1 Q9P2D1-2
CHD7ENST00000695853.1 linkn.3064A>G non_coding_transcript_exon_variant Exon 12 of 37 ENSP00000512218.1 A0A8Q3WKT9

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152164
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000161
AC:
4
AN:
249192
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135188
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000684
AC:
10
AN:
1461570
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727074
show subpopulations
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:
0.00
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152164
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000166
AC:
2

ClinVar

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

Submissions by phenotype

CHARGE syndrome;C3552553:Hypogonadotropic hypogonadism 5 with or without anosmia Uncertain:2
May 09, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 30, 2021
Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

CHD7 NM_017780.3 exon 12 p.Ile1022Val (c.3064A>G): This variant has not been reported in the literature but is present in 0.003% (5/128332) of European alleles in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/8-61735168-A-G). This variant is present in ClinVar (Variation ID:459545). Evolutionary conservation suggests that this variant may impact the protein; computational predictive tools for this variant are unclear. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

CHARGE syndrome Benign:1
Aug 09, 2022
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
0.31
BayesDel_addAF
Uncertain
0.055
T
BayesDel_noAF
Uncertain
-0.050
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.51
D;.
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.49
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Uncertain
0.15
D
MetaRNN
Uncertain
0.49
T;T
MetaSVM
Uncertain
0.48
D
MutationAssessor
Benign
-0.58
N;N
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-0.86
N;N
REVEL
Uncertain
0.57
Sift
Benign
0.24
T;T
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.56
P;P
Vest4
0.57
MVP
0.73
MPC
1.6
ClinPred
0.66
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.61

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs767043440; hg19: chr8-61735168; API