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rs199786478

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017950.4(CCDC40):​c.1714T>A​(p.Cys572Ser) 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 1,461,848 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C572R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CCDC40
NM_017950.4 missense

Scores

1
2
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.30
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.113734215).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC40NM_017950.4 linkuse as main transcriptc.1714T>A p.Cys572Ser missense_variant 11/20 ENST00000397545.9
CCDC40NM_001243342.2 linkuse as main transcriptc.1714T>A p.Cys572Ser missense_variant 11/18

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC40ENST00000397545.9 linkuse as main transcriptc.1714T>A p.Cys572Ser missense_variant 11/205 NM_017950.4 P2Q4G0X9-1
CCDC40ENST00000574799.5 linkuse as main transcriptn.1251T>A non_coding_transcript_exon_variant 7/161
CCDC40ENST00000374877.7 linkuse as main transcriptc.1714T>A p.Cys572Ser missense_variant 11/185 A2Q4G0X9-2
CCDC40ENST00000572253.5 linkuse as main transcriptn.255T>A non_coding_transcript_exon_variant 1/62

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461848
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
16
DANN
Benign
0.83
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.27
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.56
T;T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
1.5
L;L
MutationTaster
Benign
0.51
N;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Pathogenic
-5.1
D;D
REVEL
Benign
0.061
Sift
Benign
0.37
T;T
Sift4G
Benign
0.16
T;T
Polyphen
0.037
.;B
Vest4
0.28
MutPred
0.35
Loss of catalytic residue at L573 (P = 0.0135);Loss of catalytic residue at L573 (P = 0.0135);
MVP
0.28
MPC
0.23
ClinPred
0.25
T
GERP RS
3.1
Varity_R
0.26
gMVP
0.26

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: rs199786478; hg19: chr17-78055496; API