7-741475-C-G

Variant names:

• chr7-741475-C-G
• rs375071932
• NM_017802.4:c.1024+10C>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_017802.4(DNAAF5):​c.1024+10C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000536 in 1,492,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000052 (0 hom.)
• Consequence: DNAAF5 NM_017802.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.08
• Publications: 0 publications found

Genes affected

DNAAF5 (HGNC:26013): (dynein axonemal assembly factor 5) The protein encoded by this gene is essential for the preassembly or stability of axonemal dynein arms, and is found only in organisms with motile cilia and flagella. Mutations in this gene are associated with primary ciliary dyskinesia-18, a disorder characterized by abnormalities of motile cilia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Feb 2013]

DNAAF5 Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 18

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Ambry Genetics
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017802.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAAF5	NM_017802.4	MANE Select	c.1024+10C>G		intron	N/A	NP_060272.3
	DNAAF5	NR_075098.2		n.984+10C>G		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAAF5	ENST00000297440.11	TSL:1 MANE Select	c.1024+10C>G		intron	N/A	ENSP00000297440.6	Q86Y56-1
	DNAAF5	ENST00000852634.1		c.1105+10C>G		intron	N/A	ENSP00000522693.1
	DNAAF5	ENST00000852633.1		c.1024+10C>G		intron	N/A	ENSP00000522692.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151990 Hom.: 0 Cov.: 32

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000567 AC: 1 AN: 176454 AF XY: 0.00

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: 0.0000137

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000522 AC: 7 AN: 1340842 Hom.: 0 Cov.: 21 AF XY: 0.00000301 AC XY: 2 AN XY: 665550

African (AFR) AF: 0.00 AC: 0 AN: 31530

American (AMR) AF: 0.00 AC: 0 AN: 36534

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24562

East Asian (EAS) AF: 0.00 AC: 0 AN: 37674

South Asian (SAS) AF: 0.00 AC: 0 AN: 78634

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49998

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4518

European-Non Finnish (NFE) AF: 0.00000588 AC: 6 AN: 1021256

Other (OTH) AF: 0.0000178 AC: 1 AN: 56136

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151990 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74236

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41402

American (AMR) AF: 0.00 AC: 0 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5160

South Asian (SAS) AF: 0.00 AC: 0 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10562

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 67982

Other (OTH) AF: 0.00 AC: 0 AN: 2088

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.12
DANN	Benign	0.26
PhyloP100		-1.1

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: rs375071932; hg19: chr7-781112;