chr7-770543-C-T

Position:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_017802.4(DNAAF5):​c.1856C>T​(p.Pro619Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000502 in 1,613,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

DNAAF5
NM_017802.4 missense

Scores

2
12
4

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 5.45
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.754

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DNAAF5NM_017802.4 linkuse as main transcriptc.1856C>T p.Pro619Leu missense_variant 9/13 ENST00000297440.11 NP_060272.3 Q86Y56-1B3KPE2
DNAAF5XM_024446813.2 linkuse as main transcriptc.1856C>T p.Pro619Leu missense_variant 9/12 XP_024302581.1
DNAAF5NR_075098.2 linkuse as main transcriptn.1816C>T non_coding_transcript_exon_variant 9/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DNAAF5ENST00000297440.11 linkuse as main transcriptc.1856C>T p.Pro619Leu missense_variant 9/131 NM_017802.4 ENSP00000297440.6 Q86Y56-1
DNAAF5ENST00000403952.3 linkuse as main transcriptc.131C>T p.Pro44Leu missense_variant 2/61 ENSP00000384884.3 E9PGY2
DNAAF5ENST00000440747.5 linkuse as main transcriptc.1259C>T p.Pro420Leu missense_variant 9/132 ENSP00000403165.1 H0Y650
DNAAF5ENST00000491496.1 linkuse as main transcriptn.141C>T non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152230
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
250916
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135790
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000527
AC:
77
AN:
1461614
Hom.:
0
Cov.:
30
AF XY:
0.0000468
AC XY:
34
AN XY:
727120
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000603
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152230
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000386
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 17, 2022The p.P619L variant (also known as c.1856C>T), located in coding exon 9 of the DNAAF5 gene, results from a C to T substitution at nucleotide position 1856. The proline at codon 619 is replaced by leucine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 05, 2020In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with DNAAF5-related disease. This variant is present in population databases (rs755871359, ExAC 0.02%). This sequence change replaces proline with leucine at codon 619 of the DNAAF5 protein (p.Pro619Leu). The proline residue is highly conserved and there is a moderate physicochemical difference between proline and leucine. -
Primary ciliary dyskinesia 18 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 26, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Uncertain
0.017
T
BayesDel_noAF
Uncertain
0.010
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.28
T;T
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Benign
0.071
D
MetaRNN
Pathogenic
0.75
D;D
MetaSVM
Uncertain
0.034
D
PrimateAI
Uncertain
0.55
T
PROVEAN
Pathogenic
-8.4
D;D
REVEL
Uncertain
0.41
Sift
Uncertain
0.0040
D;D
Sift4G
Uncertain
0.011
D;D
Polyphen
1.0
D;D
Vest4
0.75
MutPred
0.46
Loss of loop (P = 0.0075);.;
MVP
0.45
MPC
0.62
ClinPred
0.92
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.44
gMVP
0.56

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

LitVar

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

Other links and lift over

dbSNP: rs755871359; hg19: chr7-810180; API