rs786204168

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_017780.4(CHD7):​c.7179C>A​(p.Asn2393Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,611,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

2
17

Clinical Significance

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

Conservation

PhyloP100: 0.0840
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 Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13471168).
BP6
Variant 8-60856459-C-A is Benign according to our data. Variant chr8-60856459-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 188237.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.00000411 (6/1458948) while in subpopulation AMR AF= 0.000135 (6/44486). AF 95% confidence interval is 0.0000583. There are 0 homozygotes in gnomad4_exome. There are 2 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHD7NM_017780.4 linkc.7179C>A p.Asn2393Lys missense_variant Exon 34 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.7179C>A p.Asn2393Lys missense_variant Exon 34 of 38 5 NM_017780.4 ENSP00000392028.1 Q9P2D1-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000246
AC:
6
AN:
243870
Hom.:
0
AF XY:
0.0000226
AC XY:
3
AN XY:
132712
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000146
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:
0.00000912
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1458948
Hom.:
0
Cov.:
31
AF XY:
0.00000276
AC XY:
2
AN XY:
725478
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000135
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000828
AC:
1

ClinVar

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

Submissions by phenotype

CHARGE syndrome;C3552553:Hypogonadotropic hypogonadism 5 with or without anosmia Uncertain:1
Apr 22, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

CHARGE syndrome Benign:1
Dec 02, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: 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
Benign
-0.44
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
15
DANN
Benign
0.93
DEOGEN2
Benign
0.045
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.45
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.78
T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.13
T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
-0.41
N
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
0.76
N
REVEL
Benign
0.11
Sift
Benign
1.0
T
Sift4G
Benign
0.99
T
Polyphen
0.18
B
Vest4
0.60
MutPred
0.20
Gain of methylation at N2393 (P = 0.0127);
MVP
0.53
MPC
0.21
ClinPred
0.050
T
GERP RS
0.73
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.062
gMVP
0.16

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.

Other links and lift over

dbSNP: rs753446252; hg19: chr8-61769018; API