rs201423234

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP6BS1

The NM_017780.4(CHD7):​c.5848G>A​(p.Ala1950Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000301 in 1,613,616 control chromosomes in the GnomAD database, including 1 homozygotes. 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. A1950V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00031 ( 1 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

6
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:5

Conservation

PhyloP100: 7.71

Publications

6 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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2646609).
BP6
Variant 8-60852201-G-A is Benign according to our data. Variant chr8-60852201-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 196181.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000223 (34/152194) while in subpopulation NFE AF = 0.000426 (29/68034). AF 95% confidence interval is 0.000304. There are 0 homozygotes in GnomAd4. There are 11 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017780.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD7
NM_017780.4
MANE Select
c.5848G>Ap.Ala1950Thr
missense
Exon 29 of 38NP_060250.2
CHD7
NM_001316690.1
c.1717-10028G>A
intron
N/ANP_001303619.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD7
ENST00000423902.7
TSL:5 MANE Select
c.5848G>Ap.Ala1950Thr
missense
Exon 29 of 38ENSP00000392028.1
CHD7
ENST00000524602.5
TSL:1
c.1717-10028G>A
intron
N/AENSP00000437061.1
CHD7
ENST00000527921.1
TSL:4
n.339G>A
non_coding_transcript_exon
Exon 4 of 5

Frequencies

GnomAD3 genomes
AF:
0.000223
AC:
34
AN:
152194
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.000282
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000426
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000226
AC:
56
AN:
248128
AF XY:
0.000237
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000291
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000464
Gnomad NFE exome
AF:
0.000480
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000309
AC:
451
AN:
1461422
Hom.:
1
Cov.:
31
AF XY:
0.000301
AC XY:
219
AN XY:
727010
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33452
American (AMR)
AF:
0.0000448
AC:
2
AN:
44636
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86240
European-Finnish (FIN)
AF:
0.0000938
AC:
5
AN:
53330
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.000383
AC:
426
AN:
1111820
Other (OTH)
AF:
0.000265
AC:
16
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.478
Heterozygous variant carriers
0
25
51
76
102
127
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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
AF:
0.000223
AC:
34
AN:
152194
Hom.:
0
Cov.:
32
AF XY:
0.000148
AC XY:
11
AN XY:
74350
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41436
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.000282
AC:
3
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000426
AC:
29
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000339
Hom.:
1
Bravo
AF:
0.000170
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000244
AC:
2
ExAC
AF:
0.000306
AC:
37
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:2
Aug 13, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 25996639, 28475860, 21158681)

Feb 03, 2015
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Jul 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

CHD7: BS2

CHARGE syndrome Benign:1
Jan 26, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Inborn genetic diseases Benign:1
Jan 03, 2017
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely 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.

CHD7-related disorder Benign:1
Sep 27, 2021
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.44
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.11
CADD
Uncertain
25
DANN
Benign
0.95
DEOGEN2
Benign
0.10
T
Eigen
Benign
-0.017
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.89
D
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.26
T
MetaSVM
Benign
-0.35
T
MutationAssessor
Benign
0.69
N
PhyloP100
7.7
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
0.41
N
REVEL
Uncertain
0.39
Sift
Benign
0.58
T
Sift4G
Benign
0.67
T
Polyphen
0.057
B
Vest4
0.64
MVP
0.76
MPC
0.93
ClinPred
0.11
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.096
gMVP
0.51
Mutation Taster
=86/14
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs201423234; hg19: chr8-61764760; API