Variant rs182104049 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_017950.4(CCDC40):c.1806+8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000212 in 1,613,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00068 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

CCDC40
NM_017950.4 splice_region, intron

Scores

Splicing: ADA: 0.001318

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.829

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 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.78).

BP6

Variant 17-80081797-C-T is Benign according to our data. Variant chr17-80081797-C-T is described in ClinVar as [Benign]. Clinvar id is 414636.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCDC40	NM_017950.4 linkuse as main transcript	c.1806+8C>T		splice_region_variant, intron_variant		ENST00000397545.9	NP_060420.2
CCDC40	NM_001243342.2 linkuse as main transcript	c.1806+8C>T		splice_region_variant, intron_variant			NP_001230271.1

Ensembl

Gene	Transcript	HGVSc	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCDC40	ENST00000397545.9 linkuse as main transcript	c.1806+8C>T	splice_region_variant, intron_variant		5	NM_017950.4	ENSP00000380679	P2	Q4G0X9-1
CCDC40	ENST00000574799.5 linkuse as main transcript	n.1343+8C>T	splice_region_variant, intron_variant, non_coding_transcript_variant		1
CCDC40	ENST00000374877.7 linkuse as main transcript	c.1806+8C>T	splice_region_variant, intron_variant		5		ENSP00000364011	A2	Q4G0X9-2
CCDC40	ENST00000572253.5 linkuse as main transcript	n.355C>T	non_coding_transcript_exon_variant	1/6	2

Frequencies

GnomAD3 genomes

AF:

0.000677

AC:

103

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00220

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000958

GnomAD3 exomes

AF:

0.000202

AC:

AN:

247810

Hom.:

AF XY:

0.000193

AC XY:

AN XY:

134804

show subpopulations

Gnomad AFR exome

AF:

0.00268

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000557

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000625

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000164

AC:

239

AN:

1461584

Hom.:

Cov.:

AF XY:

0.000165

AC XY:

120

AN XY:

727100

show subpopulations

Gnomad4 AFR exome

AF:

0.00287

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000112

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.000676

AC:

103

AN:

152306

Hom.:

Cov.:

AF XY:

0.000631

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00219

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000948

Alfa

AF:

0.000605

Hom.:

Bravo

AF:

0.000952

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 28, 2024

- -

CCDC40-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 08, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

1.2

DANN

Benign

0.80

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0013

dbscSNV1_RF

Benign

0.022

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over