rs1421531868

Variant names:

• chr19-48312078-CT-C
• rs1421531868
• NM_001364171.2:c.398delA

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_001364171.2(ODAD1):​c.398delA​(p.Lys133ArgfsTer23) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,398,578 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ODAD1 NM_001364171.2 frameshift
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 0.798
• Publications: 0 publications found

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: G2P, ClinGen, Labcorp Genetics (formerly Invitae)
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 18 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 19-48312078-CT-C is Pathogenic according to our data. Variant chr19-48312078-CT-C is described in ClinVar as Pathogenic. ClinVar VariationId is 525210.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ODAD1	NM_001364171.2	MANE Select	c.398delA	p.Lys133ArgfsTer23	frameshift	Exon 6 of 16	NP_001351100.1	A0A6I8PTZ2
	ODAD1	NM_144577.4		c.287delA	p.Lys96ArgfsTer23	frameshift	Exon 4 of 14	NP_653178.3	Q96M63-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ODAD1	ENST00000674294.1	MANE Select	c.398delA	p.Lys133ArgfsTer23	frameshift	Exon 6 of 16	ENSP00000501363.1	A0A6I8PTZ2
	ODAD1	ENST00000315396.7	TSL:1	c.287delA	p.Lys96ArgfsTer23	frameshift	Exon 4 of 14	ENSP00000318429.7	Q96M63-1
	ODAD1	ENST00000859784.1		c.398delA	p.Lys133ArgfsTer23	frameshift	Exon 5 of 15	ENSP00000529843.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000631 AC: 1 AN: 158548 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000143 AC: 2 AN: 1398578 Hom.: 0 Cov.: 30 AF XY: 0.00000145 AC XY: 1 AN XY: 689882

African (AFR) AF: 0.00 AC: 0 AN: 31568

American (AMR) AF: 0.00 AC: 0 AN: 35702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25166

East Asian (EAS) AF: 0.00 AC: 0 AN: 35734

South Asian (SAS) AF: 0.0000126 AC: 1 AN: 79206

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49534

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5682

European-Non Finnish (NFE) AF: 9.28e-7 AC: 1 AN: 1077858

Other (OTH) AF: 0.00 AC: 0 AN: 58128

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Primary ciliary dyskinesia (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.80
Mutation Taster		=27/173	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.24		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.24		Position offset: 38

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

Other links and lift over

dbSNP: rs1421531868; hg19: chr19-48815335;