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GeneBe

16-84145447-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_178452.6(DNAAF1):​c.7C>T​(p.Pro3Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000028 in 1,428,642 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

DNAAF1
NM_178452.6 missense

Scores

2
4
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.21
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18550214).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAAF1NM_178452.6 linkuse as main transcriptc.7C>T p.Pro3Ser missense_variant 1/12 ENST00000378553.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAAF1ENST00000378553.10 linkuse as main transcriptc.7C>T p.Pro3Ser missense_variant 1/121 NM_178452.6 P1Q8NEP3-1
DNAAF1ENST00000567918.5 linkuse as main transcriptc.7C>T p.Pro3Ser missense_variant, NMD_transcript_variant 1/71
DNAAF1ENST00000570298.5 linkuse as main transcriptn.161C>T non_coding_transcript_exon_variant 1/112
DNAAF1ENST00000563093.5 linkuse as main transcriptc.7C>T p.Pro3Ser missense_variant, NMD_transcript_variant 1/112 Q8NEP3-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000511
AC:
1
AN:
195606
Hom.:
0
AF XY:
0.00000956
AC XY:
1
AN XY:
104628
show subpopulations
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 SAS exome
AF:
0.0000399
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000280
AC:
4
AN:
1428642
Hom.:
0
Cov.:
31
AF XY:
0.00000424
AC XY:
3
AN XY:
707282
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000492
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 09, 2021The c.7C>T (p.P3S) alteration is located in exon 1 (coding exon 1) of the DNAAF1 gene. This alteration results from a C to T substitution at nucleotide position 7, causing the proline (P) at amino acid position 3 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.090
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.012
T
Eigen
Benign
-0.0041
Eigen_PC
Benign
-0.017
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.74
T
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.82
T
MutationAssessor
Benign
1.9
L
MutationTaster
Benign
0.84
N;N
PrimateAI
Uncertain
0.55
T
PROVEAN
Uncertain
-2.4
N
REVEL
Benign
0.088
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.52
P
Vest4
0.30
MutPred
0.15
Gain of phosphorylation at P3 (P = 0.0117);
MVP
0.56
MPC
0.16
ClinPred
0.94
D
GERP RS
3.4
Varity_R
0.20
gMVP
0.47

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs868661486; hg19: chr16-84179052; API