rs552527338

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_018076.5(ODAD2):c.1219G>A(p.Gly407Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 19)

Exomes 𝑓: 0.000031 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ODAD2
NM_018076.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.550

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010136485).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ODAD2	NM_018076.5 linkuse as main transcript	c.1219G>A	p.Gly407Arg	missense_variant	9/20	ENST00000305242.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ODAD2	ENST00000305242.10 linkuse as main transcript	c.1219G>A	p.Gly407Arg	missense_variant	9/20	1	NM_018076.5	P1	Q5T2S8-1

Frequencies

GnomAD3 genomes

AF:

0.000334

AC:

AN:

137882

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00117

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000466

Gnomad OTH

AF:

0.000561

GnomAD3 exomes

AF:

0.000101

AC:

AN:

79594

Hom.:

AF XY:

0.000101

AC XY:

AN XY:

39716

show subpopulations

Gnomad AFR exome

AF:

0.000861

Gnomad AMR exome

AF:

0.0000863

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:

0.0000324

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000315

AC:

AN:

508490

Hom.:

Cov.:

AF XY:

0.0000295

AC XY:

AN XY:

270912

show subpopulations

Gnomad4 AFR exome

AF:

0.000374

Gnomad4 AMR exome

AF:

0.0000437

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000205

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000263

Gnomad4 OTH exome

AF:

0.0000360

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.000333

AC:

AN:

137996

Hom.:

Cov.:

AF XY:

0.000361

AC XY:

AN XY:

66506

show subpopulations

Gnomad4 AFR

AF:

0.00117

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000466

Gnomad4 OTH

AF:

0.000554

Alfa

AF:

0.000169

Hom.:

ExAC

AF:

0.0000997

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia 23

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Sep 14, 2020

This variant has not been reported in the literature in individuals with ARMC4-related disease. ClinVar contains an entry for this variant (Variation ID: 412243). This sequence change replaces glycine with arginine at codon 407 of the ARMC4 protein (p.Gly407Arg). The glycine residue is weakly conserved and there is a moderate physicochemical difference between glycine and arginine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the ExAC database. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The arginine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.27

Cadd

Benign

Dann

Benign

0.74

DEOGEN2

Benign

0.0029

T;T

Eigen

Benign

-0.67

Eigen_PC

Benign

-0.74

FATHMM_MKL

Benign

0.037

LIST_S2

Benign

0.68

T;T

M_CAP

Benign

0.0070

MetaRNN

Benign

0.010

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.8

L;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.2

N;N

REVEL

Benign

0.20

Sift

Benign

0.043

D;D

Sift4G

Benign

0.085

T;D

Polyphen

0.019

B;.

Vest4

0.23

MutPred

0.45

Loss of methylation at R408 (P = 0.0408);.;

MVP

0.44

MPC

1.9

ClinPred

0.012

GERP RS

3.0

Varity_R

0.062

gMVP

0.32

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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