chr16-84145422-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS1

The NM_178452.6(DNAAF1):c.-19C>T variant causes a 5 prime UTR premature start codon gain change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000451 in 1,575,556 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 1 hom. )

Consequence

DNAAF1
NM_178452.6 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0750

Publications

0 publications found

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]

DNAAF1 links:

HSDL1 (HGNC:16475): (hydroxysteroid dehydrogenase like 1) Predicted to enable oxidoreductase activity. Located in intermediate filament cytoskeleton and mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

HSDL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.74).

BP6

Variant 16-84145422-C-T is Benign according to our data. Variant chr16-84145422-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 262934.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.0000372 (53/1423226) while in subpopulation AFR AF = 0.000967 (32/33084). AF 95% confidence interval is 0.000703. There are 1 homozygotes in GnomAdExome4. There are 34 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_178452.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
DNAAF1	NM_178452.6	MANE Select	c.-19C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 12	NP_848547.4
DNAAF1	NM_178452.6	MANE Select	c.-19C>T	5_prime_UTR	Exon 1 of 12	NP_848547.4
HSDL1	NM_031463.5	MANE Select	c.-411G>A	upstream_gene	N/A	NP_113651.4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
DNAAF1	ENST00000378553.10	TSL:1 MANE Select	c.-19C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 12	ENSP00000367815.5
DNAAF1	ENST00000567918.5	TSL:1	n.-19C>T	5_prime_UTR_premature_start_codon_gain	Exon 1 of 7	ENSP00000455154.1
DNAAF1	ENST00000567918.5	TSL:1	n.-19C>T	non_coding_transcript_exon	Exon 1 of 7	ENSP00000455154.1

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000434

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000427

AC:

AN:

187234

AF XY:

0.00000997

show subpopulations

Gnomad AFR exome

AF:

0.000601

Gnomad AMR exome

AF:

0.0000368

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000372

AC:

AN:

1423226

Hom.:

Cov.:

AF XY:

0.0000483

AC XY:

AN XY:

704226

show subpopulations

African (AFR)

AF:

0.000967

AC:

AN:

33084

American (AMR)

AF:

0.0000525

AC:

AN:

38128

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25274

East Asian (EAS)

AF:

0.00

AC:

AN:

38292

South Asian (SAS)

AF:

0.0000124

AC:

AN:

80906

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49930

Middle Eastern (MID)

AF:

0.000702

AC:

AN:

5702

European-Non Finnish (NFE)

AF:

0.00000458

AC:

AN:

1092896

Other (OTH)

AF:

0.000153

AC:

AN:

59014

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000118

AC:

AN:

152330

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.000433

AC:

AN:

41572

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.000121

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.74

CADD

Benign

8.9

(source)

DANN

Benign

0.87

PhyloP100

-0.075

PromoterAI

0.019

Neutral

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over