rs189118723

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP6BS1

The NM_017950.4(CCDC40):​c.856-18G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00025 in 1,611,288 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 31)
Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

CCDC40
NM_017950.4 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 0.463
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 17-80049888-G-A is Benign according to our data. Variant chr17-80049888-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 260980.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00141 (215/152198) while in subpopulation AFR AF= 0.00498 (207/41544). AF 95% confidence interval is 0.00443. There are 1 homozygotes in gnomad4. There are 76 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CCDC40NM_017950.4 linkc.856-18G>A intron_variant Intron 5 of 19 ENST00000397545.9 NP_060420.2 Q4G0X9-1
CCDC40NM_001243342.2 linkc.856-18G>A intron_variant Intron 5 of 17 NP_001230271.1 Q4G0X9-2
CCDC40NM_001330508.2 linkc.856-18G>A intron_variant Intron 5 of 10 NP_001317437.1 Q4G0X9-4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CCDC40ENST00000397545.9 linkc.856-18G>A intron_variant Intron 5 of 19 5 NM_017950.4 ENSP00000380679.4 Q4G0X9-1

Frequencies

GnomAD3 genomes
AF:
0.00140
AC:
213
AN:
152080
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00495
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
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:
0.0000147
Gnomad OTH
AF:
0.000957
GnomAD3 exomes
AF:
0.000353
AC:
88
AN:
249450
Hom.:
0
AF XY:
0.000251
AC XY:
34
AN XY:
135366
show subpopulations
Gnomad AFR exome
AF:
0.00517
Gnomad AMR exome
AF:
0.000232
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
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:
0.000129
AC:
188
AN:
1459090
Hom.:
0
Cov.:
32
AF XY:
0.000116
AC XY:
84
AN XY:
726062
show subpopulations
Gnomad4 AFR exome
AF:
0.00461
Gnomad4 AMR exome
AF:
0.000246
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.000299
GnomAD4 genome
AF:
0.00141
AC:
215
AN:
152198
Hom.:
1
Cov.:
31
AF XY:
0.00102
AC XY:
76
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.00498
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000947
Alfa
AF:
0.000854
Hom.:
0
Bravo
AF:
0.00151
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Apr 28, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Primary ciliary dyskinesia Benign:1
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Primary ciliary dyskinesia 15 Benign:1
May 20, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
14
DANN
Benign
0.33

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.27
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.27
Position offset: 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: rs189118723; hg19: chr17-78023687; API