chr16-70895676-C-T

Variant names:

• chr16-70895676-C-T
• rs9939069
• NM_001270974.2:c.9148+305G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001270974.2(HYDIN):​c.9148+305G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0173 in 150,014 control chromosomes in the GnomAD database, including 80 homozygotes. 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 0.017 (80 hom., cov: 25)
• Consequence: HYDIN NM_001270974.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.460
• Publications: 4 publications found

Genes affected

HYDIN (HGNC:19368): (HYDIN axonemal central pair apparatus protein) This gene encodes a protein that may be involved in cilia motility. Mutations in this gene cause of autosomal recessive primary ciliary dyskinesia-5, a disorder characterized by the accumulation of cerebrospinal fluid within the ventricles of the brain. A duplicate copy of this gene has been found in humans on chromosome 1. [provided by RefSeq, Jan 2013]

HYDIN Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 5

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

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0579 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001270974.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HYDIN	NM_001270974.2	MANE Select	c.9148+305G>A		intron	N/A	NP_001257903.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HYDIN	ENST00000393567.7	TSL:5 MANE Select	c.9148+305G>A		intron	N/A	ENSP00000377197.2
	HYDIN	ENST00000309900.11	TSL:1	n.3601+305G>A		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0173 AC: 2596 AN: 149898 Hom.: 80 Cov.: 25

Gnomad AFR AF: 0.0600

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00807

Gnomad ASJ AF: 0.000290

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000633

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.0191

Gnomad NFE AF: 0.000325

Gnomad OTH AF: 0.0156

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0173 AC: 2597 AN: 150014 Hom.: 80 Cov.: 25 AF XY: 0.0171 AC XY: 1251 AN XY: 73192

African (AFR) AF: 0.0599 AC: 2412 AN: 40278

American (AMR) AF: 0.00806 AC: 122 AN: 15138

Ashkenazi Jewish (ASJ) AF: 0.000290 AC: 1 AN: 3448

East Asian (EAS) AF: 0.00 AC: 0 AN: 5046

South Asian (SAS) AF: 0.000633 AC: 3 AN: 4736

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10502

Middle Eastern (MID) AF: 0.0171 AC: 5 AN: 292

European-Non Finnish (NFE) AF: 0.000326 AC: 22 AN: 67588

Other (OTH) AF: 0.0154 AC: 32 AN: 2076

Alfa AF: 0.0155 Hom.: 6

Bravo AF: 0.0205

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.84
DANN	Benign	0.23
PhyloP100		-0.46
Mutation Taster		=100/0	polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs9939069; hg19: chr16-70929579;