rs1187193827

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_017780.4(CHD7):​c.2062G>A​(p.Ala688Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000393 in 1,525,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A688V) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000036 ( 0 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

1
17

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.666

Publications

0 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: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.04325211).
BP6
Variant 8-60781396-G-A is Benign according to our data. Variant chr8-60781396-G-A is described in ClinVar as Benign. ClinVar VariationId is 529118.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.00000364 (5/1374006) while in subpopulation AFR AF = 0.00017 (5/29462). AF 95% confidence interval is 0.0000659. There are 0 homozygotes in GnomAdExome4. There are 1 alleles in the male GnomAdExome4 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.2062G>Ap.Ala688Thr
missense
Exon 3 of 38NP_060250.2
CHD7
NM_001316690.1
c.1716+346G>A
intron
N/ANP_001303619.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD7
ENST00000423902.7
TSL:5 MANE Select
c.2062G>Ap.Ala688Thr
missense
Exon 3 of 38ENSP00000392028.1
CHD7
ENST00000524602.5
TSL:1
c.1716+346G>A
intron
N/AENSP00000437061.1
CHD7
ENST00000525508.1
TSL:5
c.2062G>Ap.Ala688Thr
missense
Exon 2 of 12ENSP00000436027.1

Frequencies

GnomAD3 genomes
AF:
0.00000660
AC:
1
AN:
151594
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000202
AC:
3
AN:
148280
AF XY:
0.0000126
show subpopulations
Gnomad AFR exome
AF:
0.000324
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000364
AC:
5
AN:
1374006
Hom.:
0
Cov.:
32
AF XY:
0.00000147
AC XY:
1
AN XY:
678670
show subpopulations
African (AFR)
AF:
0.000170
AC:
5
AN:
29462
American (AMR)
AF:
0.00
AC:
0
AN:
26010
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23114
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36784
South Asian (SAS)
AF:
0.00
AC:
0
AN:
72492
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49510
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5490
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1074174
Other (OTH)
AF:
0.00
AC:
0
AN:
56970
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000660
AC:
1
AN:
151594
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74040
show subpopulations
African (AFR)
AF:
0.0000242
AC:
1
AN:
41374
American (AMR)
AF:
0.00
AC:
0
AN:
15216
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10562
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67670
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000335
Hom.:
0
Bravo
AF:
0.0000302

ClinVar

ClinVar submissions as Germline

Significance:Benign
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
CHARGE syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.060
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.064
T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.75
D
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.043
T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
-1.0
N
PhyloP100
0.67
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.42
N
REVEL
Benign
0.16
Sift
Benign
0.73
T
Sift4G
Benign
0.58
T
Polyphen
0.0
B
Vest4
0.12
MVP
0.63
MPC
0.26
ClinPred
0.099
T
GERP RS
2.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.035
gMVP
0.11
Mutation Taster
=83/17
polymorphism

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

Other links and lift over

dbSNP: rs1187193827; hg19: chr8-61693955; API