Genetic Variant NM_001364171.2:c.1275C>A (chr19-48298306-G-T) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001364171.2(ODAD1):c.1275C>A(p.Asp425Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D425N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ODAD1
NM_001364171.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.15

Publications

0 publications found

Variant links:

Genes affected

ODAD1 (HGNC:26560): (outer dynein arm docking complex subunit 1) This gene encodes a coiled-coil domain-containing protein that is a component of the outer dynein arm docking complex in cilia cells. Mutations in this gene may cause primary ciliary dyskinesia 20. [provided by RefSeq, May 2013]

ODAD1 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 20
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ODAD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.8

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001364171.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ODAD1	NM_001364171.2	MANE Select	c.1275C>A	p.Asp425Glu	missense	Exon 13 of 16	NP_001351100.1
	ODAD1	NM_144577.4		c.1164C>A	p.Asp388Glu	missense	Exon 11 of 14	NP_653178.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ODAD1	ENST00000674294.1	MANE Select	c.1275C>A	p.Asp425Glu	missense	Exon 13 of 16	ENSP00000501363.1
ODAD1	ENST00000315396.7	TSL:1	c.1164C>A	p.Asp388Glu	missense	Exon 11 of 14	ENSP00000318429.7
ODAD1	ENST00000474199.6	TSL:2	c.1275C>A	p.Asp425Glu	missense	Exon 13 of 15	ENSP00000501357.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461842

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727226

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53394

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111994

Other (OTH)

AF:

0.00

AC:

AN:

60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.42

BayesDel_addAF

Benign

-0.041

BayesDel_noAF

Benign

-0.30

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.073

Eigen

Benign

-0.090

Eigen_PC

Benign

-0.21

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.45

M_CAP

Benign

0.072

MetaRNN

Pathogenic

0.80

MetaSVM

Benign

-0.75

MutationAssessor

Uncertain

2.6

PhyloP100

1.2

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-3.9

REVEL

Benign

0.22

Sift

Uncertain

0.0050

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.68

MutPred

0.57

Loss of ubiquitination at K384 (P = 0.0982)

MVP

0.53

MPC

0.75

ClinPred

0.94

GERP RS

0.83

Varity_R

0.16

gMVP

0.42

Mutation Taster

=78/22

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over