rs61739354

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017950.4(CCDC40):​c.1466G>A​(p.Ser489Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,958 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S489R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 29)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CCDC40
NM_017950.4 missense

Scores

18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.71

Publications

0 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 -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.019989312).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017950.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCDC40
NM_017950.4
MANE Select
c.1466G>Ap.Ser489Asn
missense
Exon 10 of 20NP_060420.2
CCDC40
NM_001243342.2
c.1466G>Ap.Ser489Asn
missense
Exon 10 of 18NP_001230271.1
CCDC40
NM_001330508.2
c.1466G>Ap.Ser489Asn
missense
Exon 10 of 11NP_001317437.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCDC40
ENST00000397545.9
TSL:5 MANE Select
c.1466G>Ap.Ser489Asn
missense
Exon 10 of 20ENSP00000380679.4
CCDC40
ENST00000574799.5
TSL:1
n.1003G>A
non_coding_transcript_exon
Exon 6 of 16
CCDC40
ENST00000374876.4
TSL:1
c.1318-573G>A
intron
N/AENSP00000364010.4

Frequencies

GnomAD3 genomes
Cov.:
29
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1460958
Hom.:
0
Cov.:
32
AF XY:
0.00000275
AC XY:
2
AN XY:
726810
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52568
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1111952
Other (OTH)
AF:
0.00
AC:
0
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
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
Cov.:
29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
0.0020
DANN
Benign
0.77
DEOGEN2
Benign
0.057
T
Eigen
Benign
-2.2
Eigen_PC
Benign
-2.2
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.32
T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.020
T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
-1.5
N
PhyloP100
-1.7
PrimateAI
Benign
0.30
T
PROVEAN
Benign
0.96
N
REVEL
Benign
0.061
Sift
Benign
0.81
T
Sift4G
Benign
0.55
T
Polyphen
0.0
B
Vest4
0.14
MutPred
0.21
Gain of catalytic residue at S489 (P = 0.0377)
MVP
0.12
MPC
0.16
ClinPred
0.039
T
GERP RS
-9.7
Varity_R
0.018
gMVP
0.041
Mutation Taster
=95/5
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: rs61739354; hg19: chr17-78039309; API