rs148762102

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_012144.4(DNAI1):​c.1822C>A​(p.His608Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000663 in 1,613,582 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H608Y) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

DNAI1
NM_012144.4 missense

Scores

3
11
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 5.78

Publications

0 publications found
Variant links:
Genes affected
DNAI1 (HGNC:2954): (dynein axonemal intermediate chain 1) This gene encodes a member of the dynein intermediate chain family. The encoded protein is part of the dynein complex in respiratory cilia. The inner- and outer-arm dyneins, which bridge between the doublet microtubules in axonemes, are the force-generating proteins responsible for the sliding movement in axonemes. The intermediate and light chains, thought to form the base of the dynein arm, help mediate attachment and may also participate in regulating dynein activity. Mutations in this gene result in abnormal ciliary ultrastructure and function associated with primary ciliary dyskinesia and Kartagener syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
DNAI1 Gene-Disease associations (from GenCC):
  • primary ciliary dyskinesia 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia
  • primary ciliary dyskinesia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.828

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAI1NM_012144.4 linkc.1822C>A p.His608Asn missense_variant Exon 19 of 20 ENST00000242317.9 NP_036276.1 Q9UI46-1A0A140VJI0
DNAI1NM_001281428.2 linkc.1834C>A p.His612Asn missense_variant Exon 19 of 20 NP_001268357.1 Q9UI46A0A087WWV9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAI1ENST00000242317.9 linkc.1822C>A p.His608Asn missense_variant Exon 19 of 20 1 NM_012144.4 ENSP00000242317.4 Q9UI46-1

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152130
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000176
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000200
AC:
5
AN:
250486
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000650
AC:
95
AN:
1461452
Hom.:
0
Cov.:
31
AF XY:
0.0000591
AC XY:
43
AN XY:
726988
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33476
American (AMR)
AF:
0.00
AC:
0
AN:
44652
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86150
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53374
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000827
AC:
92
AN:
1111836
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
7
13
20
26
33
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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
AF:
0.0000789
AC:
12
AN:
152130
Hom.:
0
Cov.:
32
AF XY:
0.0000942
AC XY:
7
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41404
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000176
AC:
12
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000853
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.000273
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Uncertain:3
Oct 28, 2019
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 02, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces histidine with asparagine at codon 608 of the DNAI1 protein (p.His608Asn). The histidine residue is moderately conserved and there is a small physicochemical difference between histidine and asparagine. This variant is present in population databases (rs148762102, ExAC 0.002%). This variant has not been reported in the literature in individuals affected with DNAI1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In 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. -

Feb 05, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.1822C>A (p.H608N) alteration is located in exon 19 (coding exon 19) of the DNAI1 gene. This alteration results from a C to A substitution at nucleotide position 1822, causing the histidine (H) at amino acid position 608 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Kartagener syndrome Uncertain:1
Aug 02, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Uncertain
0.073
D
BayesDel_noAF
Benign
-0.13
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.10
T;D
Eigen
Uncertain
0.39
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.050
D
MetaRNN
Pathogenic
0.83
D;D
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Pathogenic
3.3
.;M
PhyloP100
5.8
PrimateAI
Uncertain
0.65
T
PROVEAN
Pathogenic
-5.7
.;D
REVEL
Uncertain
0.37
Sift
Uncertain
0.010
.;D
Sift4G
Uncertain
0.010
D;D
Polyphen
0.43
.;B
Vest4
0.83
MutPred
0.44
.;Gain of ubiquitination at K606 (P = 0.0882);
MVP
0.91
MPC
0.49
ClinPred
0.95
D
GERP RS
5.6
Varity_R
0.56
gMVP
0.60
Mutation Taster
=71/29
polymorphism

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

Other links and lift over

dbSNP: rs148762102; hg19: chr9-34517286; API