chr8-132572113-T-C

Variant names:

• chr8-132572113-T-C
• rs139222648
• NM_012472.6:c.*193A>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Strong BS1_Supporting

The NM_012472.6(DNAAF11):​c.*193A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000818 in 458,504 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.0010 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00072 (0 hom.)
• Consequence: DNAAF11 NM_012472.6 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: -1.07
• Publications: 0 publications found

Genes affected

DNAAF11 (HGNC:16725): (dynein axonemal assembly factor 11) The protein encoded by this gene contains several leucine-rich repeat domains and appears to be involved in the motility of cilia. Defects in this gene are a cause of primary ciliary dyskinesia-19 (CILD19). Alternative splicing of this gene results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 4, 11 and 22. [provided by RefSeq, Apr 2016]

DNAAF11 Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 19

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics, ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BS1: Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00102 (156/152376) while in subpopulation AMR AF = 0.00542 (83/15308). AF 95% confidence interval is 0.00448. There are 0 homozygotes in GnomAd4. There are 83 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAAF11	NM_012472.6	c.*193A>G		3_prime_UTR_variant	Exon 12 of 12	ENST00000620350.5	NP_036604.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAAF11	ENST00000620350.5	c.*193A>G		3_prime_UTR_variant	Exon 12 of 12	1	NM_012472.6	ENSP00000484634.1

Frequencies

GnomAD3 genomes AF: 0.00102 AC: 156 AN: 152258 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00543

Gnomad ASJ AF: 0.00346

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.000558

Gnomad OTH AF: 0.00287

GnomAD4 exome AF: 0.000715 AC: 219 AN: 306128 Hom.: 0 Cov.: 4 AF XY: 0.000676 AC XY: 106 AN XY: 156794

African (AFR) AF: 0.000903 AC: 8 AN: 8858

American (AMR) AF: 0.00393 AC: 39 AN: 9914

Ashkenazi Jewish (ASJ) AF: 0.00183 AC: 19 AN: 10388

East Asian (EAS) AF: 0.00 AC: 0 AN: 25340

South Asian (SAS) AF: 0.000277 AC: 3 AN: 10844

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 30318

Middle Eastern (MID) AF: 0.00852 AC: 13 AN: 1526

European-Non Finnish (NFE) AF: 0.000564 AC: 107 AN: 189860

Other (OTH) AF: 0.00157 AC: 30 AN: 19080

GnomAD4 genome AF: 0.00102 AC: 156 AN: 152376 Hom.: 0 Cov.: 32 AF XY: 0.00111 AC XY: 83 AN XY: 74528

African (AFR) AF: 0.000240 AC: 10 AN: 41590

American (AMR) AF: 0.00542 AC: 83 AN: 15308

Ashkenazi Jewish (ASJ) AF: 0.00346 AC: 12 AN: 3470

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5190

South Asian (SAS) AF: 0.000414 AC: 2 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.0136 AC: 4 AN: 294

European-Non Finnish (NFE) AF: 0.000559 AC: 38 AN: 68038

Other (OTH) AF: 0.00284 AC: 6 AN: 2116

Alfa AF: 0.000902 Hom.: 0

Bravo AF: 0.00174

Asia WGS AF: 0.000578 AC: 2 AN: 3476

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Primary ciliary dyskinesia 19 Uncertain:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

not provided Uncertain:1

-

Breakthrough Genomics, Breakthrough Genomics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.0050
DANN	Benign	0.62
PhyloP100		-1.1
Mutation Taster		=100/0	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

Other links and lift over

dbSNP: rs139222648; hg19: chr8-133584361;