Genetic Variant DNAAF1:p.Asp435His (chr16-84170131-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_178452.6(DNAAF1):c.1303G>C(p.Asp435His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000695 in 1,438,164 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D435N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

DNAAF1
NM_178452.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.03

Publications

10 publications found

Variant links:

Genes affected

DNAAF1 (HGNC:30539): (dynein axonemal assembly factor 1) The protein encoded by this gene is cilium-specific and is required for the stability of the ciliary architecture. It is involved in the regulation of microtubule-based cilia and actin-based brush border microvilli. Mutations in this gene are associated with primary ciliary dyskinesia-13. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

DNAAF1 Gene-Disease associations (from GenCC):

primary ciliary dyskinesia 13
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia
primary ciliary dyskinesia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

DNAAF1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.18052202).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_178452.6. 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
	DNAAF1	NM_178452.6	MANE Select	c.1303G>C	p.Asp435His	missense	Exon 8 of 12	NP_848547.4
	DNAAF1	NM_001318756.1		c.595G>C	p.Asp199His	missense	Exon 4 of 8	NP_001305685.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DNAAF1	ENST00000378553.10	TSL:1 MANE Select	c.1303G>C	p.Asp435His	missense	Exon 8 of 12	ENSP00000367815.5
DNAAF1	ENST00000563818.5	TSL:2	n.980G>C		non_coding_transcript_exon	Exon 4 of 8
DNAAF1	ENST00000570298.5	TSL:2	n.1457G>C		non_coding_transcript_exon	Exon 8 of 11

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.95e-7

AC:

AN:

1438164

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

714870

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32928

American (AMR)

AF:

0.00

AC:

AN:

43840

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25194

East Asian (EAS)

AF:

0.00

AC:

AN:

36818

South Asian (SAS)

AF:

0.00

AC:

AN:

83440

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52998

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5548

European-Non Finnish (NFE)

AF:

9.10e-7

AC:

AN:

1098414

Other (OTH)

AF:

0.00

AC:

AN:

58984

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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.:

Alfa

AF:

0.00

Hom.:

124

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0054

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.70

FATHMM_MKL

Benign

0.050

LIST_S2

Benign

0.56

M_CAP

Benign

0.0067

MetaRNN

Benign

0.18

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

PhyloP100

1.0

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.1

REVEL

Benign

0.061

Sift

Uncertain

0.0080

Sift4G

Benign

0.075

Polyphen

0.97

Vest4

0.080

MutPred

0.16

Gain of methylation at K430 (P = 0.1482)

MVP

0.29

MPC

0.14

ClinPred

0.25

GERP RS

1.2

Varity_R

0.074

gMVP

0.16

Mutation Taster

=93/7

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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