chr17-80040188-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017950.4(CCDC40):ā€‹c.470C>Gā€‹(p.Thr157Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,594 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

CCDC40
NM_017950.4 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.400
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.047855794).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CCDC40NM_017950.4 linkuse as main transcriptc.470C>G p.Thr157Ser missense_variant 3/20 ENST00000397545.9 NP_060420.2
CCDC40NM_001243342.2 linkuse as main transcriptc.470C>G p.Thr157Ser missense_variant 3/18 NP_001230271.1
CCDC40NM_001330508.2 linkuse as main transcriptc.470C>G p.Thr157Ser missense_variant 3/11 NP_001317437.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CCDC40ENST00000397545.9 linkuse as main transcriptc.470C>G p.Thr157Ser missense_variant 3/205 NM_017950.4 ENSP00000380679 P2Q4G0X9-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248740
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135048
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS 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:
6.84e-7
AC:
1
AN:
1461594
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727084
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.76
CADD
Benign
0.027
DANN
Benign
0.64
DEOGEN2
Benign
0.021
.;T;.;.
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.016
N
LIST_S2
Benign
0.44
T;T;T;T
M_CAP
Benign
0.0015
T
MetaRNN
Benign
0.048
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N;N;N;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.050
N;N;N;N
REVEL
Benign
0.028
Sift
Benign
0.59
T;T;T;T
Sift4G
Benign
0.74
T;T;T;T
Polyphen
0.12, 0.48
.;B;.;P
Vest4
0.059
MutPred
0.14
Gain of relative solvent accessibility (P = 0.0166);Gain of relative solvent accessibility (P = 0.0166);Gain of relative solvent accessibility (P = 0.0166);Gain of relative solvent accessibility (P = 0.0166);
MVP
0.048
MPC
0.16
ClinPred
0.081
T
GERP RS
-5.0
Varity_R
0.024
gMVP
0.084

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs755159452; hg19: chr17-78013987; API