rs587777047

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PM2PP3PP5_Very_Strong

The NM_018076.5(ODAD2):​c.2780T>G​(p.Leu927Trp) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,456,918 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ODAD2
NM_018076.5 missense

Scores

11
5
3

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3O:1

Conservation

PhyloP100: 6.17

Publications

1 publications found
Variant links:
Genes affected
ODAD2 (HGNC:25583): (outer dynein arm docking complex subunit 2) The protein encoded by this gene contains ten Armadillo repeat motifs (ARMs) and one HEAT repeat, and is thought to be involved in ciliary and flagellar movement. This protein has been shown to localize to the ciliary axonemes and at the ciliary base of respiratory cells. Studies indicate that mutations in this gene cause partial outer dynein arm (ODA) defects in respiratory cilia. The cilia of cells with mutations in this gene displayed either reduced ciliary beat frequency and amplitude, or, complete immotility. Some individuals with primary ciliary dyskensia (PCD) have been shown to have mutations in this gene. PCD is characterized by chronic airway disease and left/right body asymmetry defects. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2015]
ODAD2 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 23
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Labcorp Genetics (formerly Invitae)
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.83
PP5
Variant 10-27862453-A-C is Pathogenic according to our data. Variant chr10-27862453-A-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 66045.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ODAD2NM_018076.5 linkc.2780T>G p.Leu927Trp missense_variant Exon 18 of 20 ENST00000305242.10 NP_060546.2 Q5T2S8-1A0A140VKF7B7Z7Y0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ODAD2ENST00000305242.10 linkc.2780T>G p.Leu927Trp missense_variant Exon 18 of 20 1 NM_018076.5 ENSP00000306410.5 Q5T2S8-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1456918
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
724536
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33302
American (AMR)
AF:
0.00
AC:
0
AN:
43816
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26032
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39404
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84804
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53290
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110308
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60222
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000214
Hom.:
0

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 23 Pathogenic:3
Apr 03, 2013
Lupski Lab, Baylor-Hopkins CMG, Baylor College of Medicine
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:research

This homozygous mutation was predicted to be loss-of-function. -

Sep 01, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces leucine with tryptophan at codon 927 of the ARMC4 protein (p.Leu927Trp). The leucine residue is highly conserved and there is a small physicochemical difference between leucine and tryptophan. This variant is not present in population databases (ExAC no frequency). This missense change has been observed in individual(s) with primary ciliary dyskinesia (PMID: 23849778). ClinVar contains an entry for this variant (Variation ID: 66045). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). Experimental studies have shown that this missense change affects ARMC4 function (PMID: 23849778). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Aug 08, 2013
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Kartagener syndrome Other:1
-
GeneReviews
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.20
CADD
Pathogenic
26
DANN
Benign
0.96
DEOGEN2
Benign
0.35
T
Eigen
Pathogenic
0.71
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Uncertain
0.44
D
MutationAssessor
Pathogenic
3.3
M
PhyloP100
6.2
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-5.5
D
REVEL
Pathogenic
0.72
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.97
MutPred
0.54
Loss of ubiquitination at K929 (P = 0.054);
MVP
0.70
MPC
0.72
ClinPred
1.0
D
GERP RS
4.7
Varity_R
0.80
gMVP
0.86
Mutation Taster
=10/90
disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs587777047; hg19: chr10-28151382; API