16-84165762-GTTTC-G

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBA1

The NM_178452.6(DNAAF1):​c.864-17_864-14del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00709 in 1,611,678 control chromosomes in the GnomAD database, including 664 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.037 ( 321 hom., cov: 31)
Exomes 𝑓: 0.0039 ( 343 hom. )

Consequence

DNAAF1
NM_178452.6 splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.724
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 Benign. Variant got -16 ACMG points.

BP6
Variant 16-84165762-GTTTC-G is Benign according to our data. Variant chr16-84165762-GTTTC-G is described in ClinVar as [Likely_benign]. Clinvar id is 179948.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.127 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DNAAF1NM_178452.6 linkuse as main transcriptc.864-17_864-14del splice_polypyrimidine_tract_variant, intron_variant ENST00000378553.10 NP_848547.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DNAAF1ENST00000378553.10 linkuse as main transcriptc.864-17_864-14del splice_polypyrimidine_tract_variant, intron_variant 1 NM_178452.6 ENSP00000367815 P1Q8NEP3-1

Frequencies

GnomAD3 genomes
AF:
0.0372
AC:
5645
AN:
151928
Hom.:
319
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.130
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0130
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000485
Gnomad OTH
AF:
0.0206
GnomAD3 exomes
AF:
0.00982
AC:
2465
AN:
251072
Hom.:
143
AF XY:
0.00714
AC XY:
970
AN XY:
135774
show subpopulations
Gnomad AFR exome
AF:
0.134
Gnomad AMR exome
AF:
0.00679
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000344
Gnomad OTH exome
AF:
0.00474
GnomAD4 exome
AF:
0.00395
AC:
5759
AN:
1459632
Hom.:
343
AF XY:
0.00341
AC XY:
2474
AN XY:
726288
show subpopulations
Gnomad4 AFR exome
AF:
0.136
Gnomad4 AMR exome
AF:
0.00787
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000360
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000213
Gnomad4 OTH exome
AF:
0.00936
GnomAD4 genome
AF:
0.0372
AC:
5660
AN:
152046
Hom.:
321
Cov.:
31
AF XY:
0.0368
AC XY:
2733
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.130
Gnomad4 AMR
AF:
0.0130
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000485
Gnomad4 OTH
AF:
0.0203
Alfa
AF:
0.0169
Hom.:
24
Bravo
AF:
0.0434
Asia WGS
AF:
0.00751
AC:
26
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Likely benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineSep 24, 2014864-17_864-14delCTTT in intron 6 of DNAAF1: This variant is not expected to have clinical significance because at is a deletion of 4 bases but does not diverge from the splice consensus sequence and is therefore unlikely to impact splicing. This variant has been reported in dbSNP without frequency information (rs141073 777). -
Primary ciliary dyskinesia Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.080
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: rs141073777; hg19: chr16-84199368; API