rs780264719

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_181426.2(CCDC39):c.1436C>T(p.Ala479Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,610,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. A479A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CCDC39
NM_181426.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.200

Publications

5 publications found

Variant links:

Genes affected

CCDC39 (HGNC:25244): (coiled-coil domain 39 molecular ruler complex subunit) The protein encoded by this gene is involved in the motility of cilia and flagella. The encoded protein is essential for the assembly of dynein regulatory and inner dynein arm complexes, which regulate ciliary beat. Defects in this gene are a cause of primary ciliary dyskinesia type 14 (CILD14). [provided by RefSeq, Jul 2011]

CCDC39 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 14
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

CCDC39 links:

ENSG00000145075 (HGNC:):

ENSG00000145075 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.030781984).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC39	NM_181426.2 link	c.1436C>T	p.Ala479Val	missense_variant	Exon 11 of 20	ENST00000476379.6	NP_852091.1	Q9UFE4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC39	ENST00000476379.6 link	c.1436C>T	p.Ala479Val	missense_variant	Exon 11 of 20	2	NM_181426.2	ENSP00000417960.2		Q9UFE4-1

Frequencies

GnomAD3 genomes

AF:

0.0000463

AC:

AN:

151174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000972

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000482

GnomAD2 exomes

AF:

0.0000324

AC:

AN:

247092

AF XY:

0.0000224

show subpopulations

Gnomad AFR exome

AF:

0.0000651

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000225

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000179

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1459136

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

725752

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33350

American (AMR)

AF:

0.00

AC:

AN:

44522

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26076

East Asian (EAS)

AF:

0.000127

AC:

AN:

39486

South Asian (SAS)

AF:

0.0000350

AC:

AN:

85744

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53220

Middle Eastern (MID)

AF:

0.000695

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00000720

AC:

AN:

1110724

Other (OTH)

AF:

0.0000166

AC:

AN:

60256

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000463

AC:

AN:

151174

Hom.:

Cov.:

AF XY:

0.0000407

AC XY:

AN XY:

73756

show subpopulations

African (AFR)

AF:

0.0000972

AC:

AN:

41140

American (AMR)

AF:

0.00

AC:

AN:

15164

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.000193

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10312

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67818

Other (OTH)

AF:

0.000482

AC:

AN:

2076

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000712

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000414

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Uncertain:1

Dec 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 479 of the CCDC39 protein (p.Ala479Val). This variant is present in population databases (rs780264719, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with CCDC39-related conditions. ClinVar contains an entry for this variant (Variation ID: 577631). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The valine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.65

CADD

Benign

(source)

DANN

Benign

0.29

DEOGEN2

Benign

0.0016

Eigen

Benign

-0.79

Eigen_PC

Benign

-0.75

FATHMM_MKL

Benign

0.069

LIST_S2

Benign

0.70

M_CAP

Benign

0.0055

MetaRNN

Benign

0.031

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PhyloP100

0.20

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.31

REVEL

Benign

0.042

Sift

Benign

0.56

Sift4G

Benign

0.33

Polyphen

0.029

Vest4

0.063

MutPred

0.19

Gain of glycosylation at S474 (P = 0.0053);

MVP

0.32

MPC

0.052

ClinPred

0.024

GERP RS

0.20

Varity_R

0.027

Mutation Taster

=99/1

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over