NM_017802.4:c.2024C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_017802.4(DNAAF5):c.2024C>T(p.Thr675Met) variant causes a missense change. The variant allele was found at a frequency of 0.000123 in 1,611,780 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T675K) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000069 ( 3 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 3.94

Publications

0 publications found

Variant links:

Genes affected

DNAAF5 (HGNC:26013): (dynein axonemal assembly factor 5) The protein encoded by this gene is essential for the preassembly or stability of axonemal dynein arms, and is found only in organisms with motile cilia and flagella. Mutations in this gene are associated with primary ciliary dyskinesia-18, a disorder characterized by abnormalities of motile cilia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2013]

DNAAF5 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 18
Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

DNAAF5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21629143).

BP6

Variant 7-774140-C-T is Benign according to our data. Variant chr7-774140-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 410295.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1, Likely_benign=1}.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000644 (98/152224) while in subpopulation AMR AF = 0.00641 (98/15286). AF 95% confidence interval is 0.00538. There are 0 homozygotes in GnomAd4. There are 73 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 3 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF5	NM_017802.4 link	c.2024C>T	p.Thr675Met	missense_variant	Exon 10 of 13	ENST00000297440.11	NP_060272.3	Q86Y56-1B3KPE2
DNAAF5	XM_024446813.2 link	c.2024C>T	p.Thr675Met	missense_variant	Exon 10 of 12		XP_024302581.1
DNAAF5	NR_075098.2 link	n.1984C>T		non_coding_transcript_exon_variant	Exon 10 of 13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
DNAAF5	ENST00000297440.11 link	c.2024C>T	p.Thr675Met	missense_variant	Exon 10 of 13	1	NM_017802.4	ENSP00000297440.6	Q86Y56-1
DNAAF5	ENST00000403952.3 link	c.299C>T	p.Thr100Met	missense_variant	Exon 3 of 6	1		ENSP00000384884.3	E9PGY2
DNAAF5	ENST00000440747.5 link	c.1427C>T	p.Thr476Met	missense_variant	Exon 10 of 13	2		ENSP00000403165.1	H0Y650

Frequencies

GnomAD3 genomes

AF:

0.000644

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00641

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000312

AC:

AN:

243578

AF XY:

0.000286

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00221

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:

0.0000685

AC:

100

AN:

1459556

Hom.:

Cov.:

AF XY:

0.0000606

AC XY:

AN XY:

726186

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00217

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51466

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111860

Other (OTH)

AF:

0.0000332

AC:

AN:

60244

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000644

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.000982

AC XY:

AN XY:

74360

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41460

American (AMR)

AF:

0.00641

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.000635

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Primary ciliary dyskinesia

Benign:2

Oct 23, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 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. -

Primary ciliary dyskinesia 18

Uncertain:1

Aug 30, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The DNAAF5 c.2024C>T; p.Thr675Met variant (rs757110526) to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 410295). This variant is observed in the Latino/Admixed American population with an allele frequency of 0.2% (77/35,218 alleles, including 2 homozygotes) in the Genome Aggregation Database. Computational analyses are uncertain whether this variant is deleterious or neutral (REVEL: 0.426). Due to limited information, the clinical significance of this variant is uncertain at this time. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.12

CADD

Benign

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.34

T;T

Eigen

Pathogenic

0.69

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.81

T;T

M_CAP

Uncertain

0.18

MetaRNN

Benign

0.22

T;T

MetaSVM

Uncertain

0.12

PhyloP100

3.9

PrimateAI

Uncertain

0.61

PROVEAN

Pathogenic

-5.3

D;D

REVEL

Uncertain

0.43

Sift

Uncertain

0.0010

D;D

Sift4G

Uncertain

0.0020

D;D

Polyphen

1.0

D;D

Vest4

0.58

MutPred

0.69

Gain of MoRF binding (P = 0.0858);.;

MVP

0.37

MPC

0.63

ClinPred

0.28

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.49

gMVP

0.45

Mutation Taster

=77/23

polymorphism

(source)

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

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NM_017802.4:c.2024C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over