rs115293759

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_017780.4(CHD7):​c.309G>A​(p.Ser103Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000941 in 1,613,900 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. S103S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0054 ( 6 hom., cov: 32)
Exomes 𝑓: 0.00048 ( 4 hom. )

Consequence

CHD7
NM_017780.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: -0.185

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: Orphanet, G2P, Labcorp Genetics (formerly Invitae), Broad Center for Mendelian Genomics, ClinGen
  • 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.61).
BP6
Variant 8-60741741-G-A is Benign according to our data. Variant chr8-60741741-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 95783.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00538 (819/152288) while in subpopulation AFR AF = 0.019 (789/41554). AF 95% confidence interval is 0.0179. There are 6 homozygotes in GnomAd4. There are 371 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 6 AD,AR gene

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.309G>Ap.Ser103Ser
synonymous
Exon 2 of 38NP_060250.2
CHD7
NM_001316690.1
c.309G>Ap.Ser103Ser
synonymous
Exon 1 of 5NP_001303619.1Q9P2D1-4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHD7
ENST00000423902.7
TSL:5 MANE Select
c.309G>Ap.Ser103Ser
synonymous
Exon 2 of 38ENSP00000392028.1Q9P2D1-1
CHD7
ENST00000524602.5
TSL:1
c.309G>Ap.Ser103Ser
synonymous
Exon 1 of 5ENSP00000437061.1Q9P2D1-4
CHD7
ENST00000933299.1
c.309G>Ap.Ser103Ser
synonymous
Exon 2 of 38ENSP00000603358.1

Frequencies

GnomAD3 genomes
AF:
0.00539
AC:
820
AN:
152170
Hom.:
6
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0190
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000916
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00430
GnomAD2 exomes
AF:
0.00131
AC:
326
AN:
248938
AF XY:
0.000903
show subpopulations
Gnomad AFR exome
AF:
0.0183
Gnomad AMR exome
AF:
0.000928
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000709
Gnomad OTH exome
AF:
0.000496
GnomAD4 exome
AF:
0.000478
AC:
699
AN:
1461612
Hom.:
4
Cov.:
32
AF XY:
0.000400
AC XY:
291
AN XY:
727088
show subpopulations
African (AFR)
AF:
0.0161
AC:
539
AN:
33480
American (AMR)
AF:
0.000850
AC:
38
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39696
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000387
AC:
43
AN:
1111820
Other (OTH)
AF:
0.00111
AC:
67
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
50
100
150
200
250
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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:
0.00538
AC:
819
AN:
152288
Hom.:
6
Cov.:
32
AF XY:
0.00498
AC XY:
371
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.0190
AC:
789
AN:
41554
American (AMR)
AF:
0.000915
AC:
14
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68032
Other (OTH)
AF:
0.00425
AC:
9
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
43
85
128
170
213
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00221
Hom.:
2
Bravo
AF:
0.00571
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
8
not specified (8)
-
-
2
not provided (2)
-
-
1
CHARGE syndrome (1)
-
-
1
CHARGE syndrome;C3552553:Hypogonadotropic hypogonadism 5 with or without anosmia (1)
-
-
1
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.61
CADD
Benign
8.7
DANN
Benign
0.86
PhyloP100
-0.18
PromoterAI
0.024
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs115293759; hg19: chr8-61654300; COSMIC: COSV71109305; COSMIC: COSV71109305; API