rs776372236

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 1P and 14B. PP2BP4_ModerateBP6_Very_StrongBS2

The NM_017780.4(CHD7):​c.2218G>A​(p.Asp740Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,348 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D740E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

1
8
10

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 7.99
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 -13 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=0.21349066).
BP6
Variant 8-60795107-G-A is Benign according to our data. Variant chr8-60795107-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 260893.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHD7NM_017780.4 linkuse as main transcriptc.2218G>A p.Asp740Asn missense_variant 4/38 ENST00000423902.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHD7ENST00000423902.7 linkuse as main transcriptc.2218G>A p.Asp740Asn missense_variant 4/385 NM_017780.4 P1Q9P2D1-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248744
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
134946
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:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461348
Hom.:
0
Cov.:
31
AF XY:
0.00000963
AC XY:
7
AN XY:
726934
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:
0.00000720
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000828
AC:
1
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
CHARGE syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 06, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.054
T
BayesDel_noAF
Benign
-0.32
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.21
T;.
Eigen
Benign
0.095
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.21
T;T
MetaSVM
Benign
-0.54
T
MutationAssessor
Benign
0.34
N;N
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-1.3
N;N
REVEL
Uncertain
0.38
Sift
Uncertain
0.027
D;D
Sift4G
Uncertain
0.033
D;D
Polyphen
0.048
B;.
Vest4
0.29
MVP
0.76
MPC
0.14
ClinPred
0.42
T
GERP RS
5.7
Varity_R
0.075
gMVP
0.15

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs776372236; hg19: chr8-61707666; API