8-60856761-C-T

Variant summary

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

The NM_017780.4(CHD7):​c.7481C>T​(p.Thr2494Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000428 in 1,613,894 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

CHD7
NM_017780.4 missense

Scores

1
10
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 4.89

Publications

2 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=0.37559676).
BP6
Variant 8-60856761-C-T is Benign according to our data. Variant chr8-60856761-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 363479.
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000657 (10/152212) while in subpopulation AMR AF = 0.000196 (3/15288). AF 95% confidence interval is 0.0000528. There are 0 homozygotes in GnomAd4. There are 3 alleles in the male GnomAd4 subpopulation. Median coverage is 33. 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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD7
NM_017780.4
MANE Select
c.7481C>Tp.Thr2494Ile
missense
Exon 34 of 38NP_060250.2
CHD7
NM_001316690.1
c.1717-5468C>T
intron
N/ANP_001303619.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD7
ENST00000423902.7
TSL:5 MANE Select
c.7481C>Tp.Thr2494Ile
missense
Exon 34 of 38ENSP00000392028.1
CHD7
ENST00000524602.5
TSL:1
c.1717-5468C>T
intron
N/AENSP00000437061.1
CHD7
ENST00000933299.1
c.7514C>Tp.Thr2505Ile
missense
Exon 34 of 38ENSP00000603358.1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00144
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
GnomAD2 exomes
AF:
0.0000803
AC:
20
AN:
249182
AF XY:
0.0000962
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00149
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000404
AC:
59
AN:
1461682
Hom.:
0
Cov.:
32
AF XY:
0.0000385
AC XY:
28
AN XY:
727124
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33474
American (AMR)
AF:
0.0000894
AC:
4
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00161
AC:
42
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111856
Other (OTH)
AF:
0.000166
AC:
10
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
6
11
17
22
28
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:
0.0000657
AC:
10
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74348
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.000196
AC:
3
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00144
AC:
5
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.000102
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000120
AC:
1
ExAC
AF:
0.0000744
AC:
9
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
1
CHARGE syndrome (2)
-
-
1
CHD7-related disorder (1)
-
1
-
Hypogonadotropic hypogonadism 5 with or without anosmia (1)
-
-
1
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
-0.020
T
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.60
D
Eigen
Benign
0.18
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.72
T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.38
T
MetaSVM
Uncertain
-0.20
T
MutationAssessor
Benign
2.0
M
PhyloP100
4.9
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-2.9
D
REVEL
Uncertain
0.36
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.016
D
Polyphen
0.39
B
Vest4
0.70
MVP
0.75
MPC
0.27
ClinPred
0.16
T
GERP RS
5.1
Varity_R
0.27
gMVP
0.62
Mutation Taster
=15/85
disease causing

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: rs201514840; hg19: chr8-61769320; API