rs76334696

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBA1

The NM_012144.4(DNAI1):​c.1604C>A​(p.Thr535Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00654 in 1,614,238 control chromosomes in the GnomAD database, including 278 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T535A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0076 ( 29 hom., cov: 32)
Exomes 𝑓: 0.0064 ( 249 hom. )

Consequence

DNAI1
NM_012144.4 missense

Scores

8
10

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 1.67

Publications

10 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: Benign. The variant received -18 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_012144.4
BP4
Computational evidence support a benign effect (MetaRNN=0.0071043074).
BP6
Variant 9-34514428-C-A is Benign according to our data. Variant chr9-34514428-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 178763.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0585 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DNAI1NM_012144.4 linkc.1604C>A p.Thr535Asn missense_variant Exon 17 of 20 ENST00000242317.9 NP_036276.1
DNAI1NM_001281428.2 linkc.1616C>A p.Thr539Asn missense_variant Exon 17 of 20 NP_001268357.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DNAI1ENST00000242317.9 linkc.1604C>A p.Thr535Asn missense_variant Exon 17 of 20 1 NM_012144.4 ENSP00000242317.4

Frequencies

GnomAD3 genomes
AF:
0.00763
AC:
1162
AN:
152238
Hom.:
29
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000531
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000981
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0643
Gnomad SAS
AF:
0.0480
Gnomad FIN
AF:
0.0432
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00134
Gnomad OTH
AF:
0.00430
GnomAD2 exomes
AF:
0.0154
AC:
3861
AN:
251334
AF XY:
0.0168
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.000199
Gnomad EAS exome
AF:
0.0680
Gnomad FIN exome
AF:
0.0428
Gnomad NFE exome
AF:
0.00143
Gnomad OTH exome
AF:
0.0101
GnomAD4 exome
AF:
0.00643
AC:
9395
AN:
1461882
Hom.:
249
Cov.:
32
AF XY:
0.00771
AC XY:
5605
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.000239
AC:
8
AN:
33480
American (AMR)
AF:
0.000425
AC:
19
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.000268
AC:
7
AN:
26136
East Asian (EAS)
AF:
0.0598
AC:
2375
AN:
39700
South Asian (SAS)
AF:
0.0453
AC:
3908
AN:
86258
European-Finnish (FIN)
AF:
0.0416
AC:
2220
AN:
53408
Middle Eastern (MID)
AF:
0.00277
AC:
16
AN:
5768
European-Non Finnish (NFE)
AF:
0.000333
AC:
370
AN:
1112012
Other (OTH)
AF:
0.00782
AC:
472
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
655
1310
1965
2620
3275
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
100
200
300
400
500
<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:
0.00761
AC:
1160
AN:
152356
Hom.:
29
Cov.:
32
AF XY:
0.00985
AC XY:
734
AN XY:
74504
show subpopulations
African (AFR)
AF:
0.000529
AC:
22
AN:
41584
American (AMR)
AF:
0.000980
AC:
15
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.0642
AC:
333
AN:
5186
South Asian (SAS)
AF:
0.0480
AC:
232
AN:
4832
European-Finnish (FIN)
AF:
0.0432
AC:
459
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00134
AC:
91
AN:
68036
Other (OTH)
AF:
0.00378
AC:
8
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
56
112
167
223
279
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00350
Hom.:
48
Bravo
AF:
0.00343
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0152
AC:
1845
Asia WGS
AF:
0.0450
AC:
158
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Primary ciliary dyskinesia Benign:4
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 02, 2015
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as 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. -

Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 16, 2020
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 21, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Thr535Asn in exon 17 of DNAI1: This variant is not expected to have clinical sig nificance because it has been identified in 5.9% (11/186) of Finnish chromosomes from a broad population by the 1000 Genomes Project (http://www.ncbi.nlm.nih.go v/projects/SNP; dbSNP rs76334696). -

not provided Benign:2
May 23, 2021
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.13
T;T
Eigen
Benign
0.079
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.92
D;D
MetaRNN
Benign
0.0071
T;T
MetaSVM
Benign
-0.77
T
MutationAssessor
Uncertain
2.2
.;M
PhyloP100
1.7
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-4.0
.;D
REVEL
Benign
0.18
Sift
Uncertain
0.0040
.;D
Sift4G
Uncertain
0.0040
D;D
Polyphen
0.0090
.;B
Vest4
0.18
MPC
0.20
ClinPred
0.029
T
GERP RS
4.6
Varity_R
0.46
gMVP
0.48
Mutation Taster
=81/19
polymorphism (auto)

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: rs76334696; hg19: chr9-34514426; COSMIC: COSV54286344; API