17-80040225-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_017950.4(CCDC40):c.507G>A(p.Ser169Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0122 in 1,613,862 control chromosomes in the GnomAD database, including 1,261 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.050 ( 632 hom., cov: 32)

Exomes 𝑓: 0.0082 ( 629 hom. )

Consequence

CCDC40
NM_017950.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -2.70

Publications

4 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

CCDC40 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.85).

BP6

Variant 17-80040225-G-A is Benign according to our data. Variant chr17-80040225-G-A is described in ClinVar as Benign. ClinVar VariationId is 162845.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.7 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.165 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC40	NM_017950.4 link	c.507G>A	p.Ser169Ser	synonymous_variant	Exon 3 of 20	ENST00000397545.9	NP_060420.2	Q4G0X9-1
CCDC40	NM_001243342.2 link	c.507G>A	p.Ser169Ser	synonymous_variant	Exon 3 of 18		NP_001230271.1	Q4G0X9-2
CCDC40	NM_001330508.2 link	c.507G>A	p.Ser169Ser	synonymous_variant	Exon 3 of 11		NP_001317437.1	Q4G0X9-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC40	ENST00000397545.9 link	c.507G>A	p.Ser169Ser	synonymous_variant	Exon 3 of 20	5	NM_017950.4	ENSP00000380679.4		Q4G0X9-1

Frequencies

GnomAD3 genomes

AF:

0.0501

AC:

7629

AN:

152160

Hom.:

623

Cov.:

show subpopulations

Gnomad AFR

AF:

0.167

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0183

Gnomad ASJ

AF:

0.00893

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.0412

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0253

Gnomad NFE

AF:

0.00134

Gnomad OTH

AF:

0.0359

GnomAD2 exomes

AF:

0.0187

AC:

4643

AN:

247948

AF XY:

0.0173

show subpopulations

Gnomad AFR exome

AF:

0.173

Gnomad AMR exome

AF:

0.0109

Gnomad ASJ exome

AF:

0.00838

Gnomad EAS exome

AF:

0.00111

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00144

Gnomad OTH exome

AF:

0.00993

GnomAD4 exome

AF:

0.00824

AC:

12050

AN:

1461584

Hom.:

629

Cov.:

AF XY:

0.00869

AC XY:

6316

AN XY:

727082

show subpopulations

African (AFR)

AF:

0.171

AC:

5728

AN:

33470

American (AMR)

AF:

0.0116

AC:

519

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00697

AC:

182

AN:

26124

East Asian (EAS)

AF:

0.00169

AC:

AN:

39692

South Asian (SAS)

AF:

0.0390

AC:

3362

AN:

86194

European-Finnish (FIN)

AF:

0.0000749

AC:

AN:

53392

Middle Eastern (MID)

AF:

0.0165

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.000962

AC:

1070

AN:

1111940

Other (OTH)

AF:

0.0170

AC:

1024

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

631

1261

1892

2522

3153

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

242

484

726

968

1210

<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:

0.0504

AC:

7677

AN:

152278

Hom.:

632

Cov.:

AF XY:

0.0490

AC XY:

3647

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.168

AC:

6983

AN:

41532

American (AMR)

AF:

0.0183

AC:

280

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00893

AC:

AN:

3472

East Asian (EAS)

AF:

0.00173

AC:

AN:

5190

South Asian (SAS)

AF:

0.0412

AC:

199

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.0272

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00134

AC:

AN:

68028

Other (OTH)

AF:

0.0360

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

337

675

1012

1350

1687

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

156

234

312

390

<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:

0.0215

Hom.:

154

Bravo

AF:

0.0558

Asia WGS

AF:

0.0430

AC:

150

AN:

3478

EpiCase

AF:

0.00169

EpiControl

AF:

0.00237

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Feb 21, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Ser169Ser in exon 3 of CCDC40: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue and is not located wit hin the splice consensus sequence. It has been identified in 15.5% (614/3952) of African American chromosomes from a broad population by the NHLBI Exome Sequenc ing Project (http://evs.gs.washington.edu/EVS; dbSNP rs2885349). -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Primary ciliary dyskinesia

Benign:2

Sep 30, 2016

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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. -

Jan 31, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Jul 05, 2018

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Primary ciliary dyskinesia 15

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.85

CADD

Benign

0.96

(source)

DANN

Benign

0.44

PhyloP100

-2.7

Mutation Taster

=100/0

polymorphism (auto)

(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