rs200574441

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_018076.5(ODAD2):​c.86C>T​(p.Ala29Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000229 in 1,613,014 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00018 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00023 ( 3 hom. )

Consequence

ODAD2
NM_018076.5 missense

Scores

1
17

Clinical Significance

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

Conservation

PhyloP100: 1.14

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: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0051702857).
BP6
Variant 10-27995057-G-A is Benign according to our data. Variant chr10-27995057-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 474592.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000184 (28/151916) while in subpopulation SAS AF = 0.00441 (21/4762). AF 95% confidence interval is 0.00295. There are 1 homozygotes in GnomAd4. There are 24 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 3 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018076.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ODAD2
NM_018076.5
MANE Select
c.86C>Tp.Ala29Val
missense
Exon 2 of 20NP_060546.2
ODAD2
NM_001290020.2
c.86C>Tp.Ala29Val
missense
Exon 2 of 20NP_001276949.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ODAD2
ENST00000305242.10
TSL:1 MANE Select
c.86C>Tp.Ala29Val
missense
Exon 2 of 20ENSP00000306410.5
ODAD2
ENST00000673439.1
c.86C>Tp.Ala29Val
missense
Exon 2 of 20ENSP00000500782.1
ODAD2
ENST00000486279.2
TSL:5
c.86C>Tp.Ala29Val
missense
Exon 3 of 4ENSP00000473438.2

Frequencies

GnomAD3 genomes
AF:
0.000191
AC:
29
AN:
151798
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000657
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00462
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000589
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000444
AC:
111
AN:
250130
AF XY:
0.000570
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000465
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000234
AC:
342
AN:
1461098
Hom.:
3
Cov.:
31
AF XY:
0.000308
AC XY:
224
AN XY:
726770
show subpopulations
African (AFR)
AF:
0.000149
AC:
5
AN:
33480
American (AMR)
AF:
0.0000448
AC:
2
AN:
44692
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.00324
AC:
279
AN:
86090
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53364
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000342
AC:
38
AN:
1111514
Other (OTH)
AF:
0.000249
AC:
15
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.446
Heterozygous variant carriers
0
19
38
57
76
95
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.000184
AC:
28
AN:
151916
Hom.:
1
Cov.:
32
AF XY:
0.000323
AC XY:
24
AN XY:
74236
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41446
American (AMR)
AF:
0.0000656
AC:
1
AN:
15252
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00441
AC:
21
AN:
4762
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10554
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000589
AC:
4
AN:
67942
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.0000262
Hom.:
0
ExAC
AF:
0.00187
AC:
227

ClinVar

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

Submissions by phenotype

Primary ciliary dyskinesia 23 Uncertain:1
Jan 10, 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 29 of the ARMC4 protein (p.Ala29Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with ARMC4-related conditions. ClinVar contains an entry for this variant (Variation ID: 474592). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". 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.

Primary ciliary dyskinesia Benign:1
Nov 17, 2024
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely 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.

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
11
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0034
T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.51
FATHMM_MKL
Benign
0.25
N
LIST_S2
Benign
0.52
T
M_CAP
Benign
0.0026
T
MetaRNN
Benign
0.0052
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.90
L
PhyloP100
1.1
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.012
Sift
Benign
0.15
T
Sift4G
Benign
0.19
T
Polyphen
0.0060
B
Vest4
0.14
MVP
0.35
MPC
0.18
ClinPred
0.018
T
GERP RS
3.1
Varity_R
0.039
gMVP
0.32
Mutation Taster
=86/14
polymorphism

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: rs200574441; hg19: chr10-28283986; COSMIC: COSV100536945; COSMIC: COSV100536945; API