17-80040208-G-C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_017950.4(CCDC40):​c.490G>C​(p.Gly164Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,613,908 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 Likely benign (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

CCDC40
NM_017950.4 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.399

Publications

3 publications found
Variant links:
Genes affected
CCDC40 (HGNC:26090): (coiled-coil domain 40 molecular ruler complex subunit) This gene encodes a protein that is necessary for motile cilia function. It functions in correct left-right axis formation by regulating the assembly of the inner dynein arm and the dynein regulatory complexes, which control ciliary beat. Mutations in this gene cause ciliary dyskinesia type 15, a disorder due to defects in cilia motility. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]
CCDC40 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 15
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia, Laboratory for Molecular Medicine
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • autoimmune disease
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

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=0.037792325).
BP6
Variant 17-80040208-G-C is Benign according to our data. Variant chr17-80040208-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 2461869.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CCDC40NM_017950.4 linkc.490G>C p.Gly164Arg missense_variant Exon 3 of 20 ENST00000397545.9 NP_060420.2 Q4G0X9-1
CCDC40NM_001243342.2 linkc.490G>C p.Gly164Arg missense_variant Exon 3 of 18 NP_001230271.1 Q4G0X9-2
CCDC40NM_001330508.2 linkc.490G>C p.Gly164Arg missense_variant Exon 3 of 11 NP_001317437.1 Q4G0X9-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CCDC40ENST00000397545.9 linkc.490G>C p.Gly164Arg missense_variant Exon 3 of 20 5 NM_017950.4 ENSP00000380679.4 Q4G0X9-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000161
AC:
4
AN:
248436
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000178
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000164
AC:
24
AN:
1461708
Hom.:
0
Cov.:
33
AF XY:
0.0000165
AC XY:
12
AN XY:
727152
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33474
American (AMR)
AF:
0.0000895
AC:
4
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86240
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53396
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5742
European-Non Finnish (NFE)
AF:
0.0000180
AC:
20
AN:
1111944
Other (OTH)
AF:
0.00
AC:
0
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
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

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:
0.0000197
AC:
3
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41448
American (AMR)
AF:
0.0000655
AC:
1
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Benign:1
Nov 04, 2022
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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.78
CADD
Benign
0.49
DANN
Benign
0.39
DEOGEN2
Benign
0.023
.;T;.;.
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.8
FATHMM_MKL
Benign
0.00057
N
LIST_S2
Benign
0.63
T;T;T;T
M_CAP
Benign
0.0013
T
MetaRNN
Benign
0.038
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N;N;N;N
PhyloP100
-0.40
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.14
N;N;N;N
REVEL
Benign
0.014
Sift
Benign
0.42
T;T;T;T
Sift4G
Benign
0.30
T;T;T;T
Polyphen
0.0
.;B;.;B
Vest4
0.049
MutPred
0.15
Loss of catalytic residue at V165 (P = 0.0234);Loss of catalytic residue at V165 (P = 0.0234);Loss of catalytic residue at V165 (P = 0.0234);Loss of catalytic residue at V165 (P = 0.0234);
MVP
0.10
MPC
0.21
ClinPred
0.013
T
GERP RS
-1.3
Varity_R
0.032
gMVP
0.065
Mutation Taster
=96/4
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: rs770564150; hg19: chr17-78014007; API