{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T21:41:10Z","timestamp":1791582070352,"version":"4.3.4"},"reference-count":49,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2015,10,1]],"date-time":"2015-10-01T00:00:00Z","timestamp":1443657600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Primary ciliary dyskinesia (PCD) is a genetically heterogeneous recessive disorder caused by several distinct defects in genes responsible for ciliary beating, leading to defective mucociliary clearance often associated with randomization of left\/right body asymmetry. Individuals with PCD caused by defective radial spoke (RS) heads are difficult to diagnose owing to lack of gross ultrastructural defects and absence of situs inversus. Thus far, most mutations identified in human radial spoke genes (RSPH) are loss-of-function mutations, and missense variants have been rarely described. We studied the consequences of different RSPH9, RSPH4A, and RSPH1 mutations on the assembly of the RS complex to improve diagnostics in PCD. We report 21 individuals with PCD (16 families) with biallelic mutations in RSPH9, RSPH4A, and RSPH1, including seven novel mutations comprising missense variants, and performed high-resolution immunofluorescence analysis of human respiratory cilia. Missense variants are frequent genetic defects in PCD with RS defects. Absence of RSPH4A due to mutations in RSPH4A results in deficient axonemal assembly of the RS head components RSPH1 and RSPH9. RSPH1 mutant cilia, lacking RSPH1, fail to assemble RSPH9, whereas RSPH9 mutations result in axonemal absence of RSPH9, but do not affect the assembly of the other head proteins, RSPH1 and RSPH4A. Interestingly, our results were identical in individuals carrying loss-of-function mutations, missense variants, or one amino acid deletion. Immunofluorescence analysis can improve diagnosis of PCD in patients with loss-of-function mutations as well as missense variants. RSPH4A is the core protein of the RS head.<\/jats:p>","DOI":"10.1165\/rcmb.2014-0483oc","type":"journal-article","created":{"date-parts":[[2015,3,19]],"date-time":"2015-03-19T14:48:00Z","timestamp":1426776480000},"page":"563-573","source":"Crossref","is-referenced-by-count":125,"title":["Immunofluorescence Analysis and Diagnosis of Primary Ciliary Dyskinesia with Radial Spoke Defects"],"prefix":"10.1093","volume":"53","author":[{"given":"Adrien","family":"Frommer","sequence":"first","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rim","family":"Hjeij","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niki T.","family":"Loges","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine","family":"Edelbusch","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charlotte","family":"Jahnke","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johanna","family":"Raidt","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claudius","family":"Werner","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia","family":"Wallmeier","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00f6rg","family":"Gro\u00dfe-Onnebrink","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heike","family":"Olbrich","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandra","family":"Cindri\u0107","sequence":"additional","affiliation":[{"name":"Department of General Pediatrics, University Children\u2019s Hospital Muenster, Muenster, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martine","family":"Jaspers","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, University Hospital Leuven, Leuven, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mieke","family":"Boon","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Pediatric Pulmonology, University Hospital of Leuven, Leuven, Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasin","family":"Memari","sequence":"additional","affiliation":[{"name":"Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard","family":"Durbin","sequence":"additional","affiliation":[{"name":"Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anja","family":"Kolb-Kokocinski","sequence":"additional","affiliation":[{"name":"Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sascha","family":"Sauer","sequence":"additional","affiliation":[{"name":"Max-Planck-Institute for Molecular Genetics, Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"June K.","family":"Marthin","sequence":"additional","affiliation":[{"name":"Danish Primary Ciliary Dyskinesia (PCD) Centre and Pediatrics Pulmonary Service, Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kim G.","family":"Nielsen","sequence":"additional","affiliation":[{"name":"Danish Primary Ciliary Dyskinesia (PCD) Centre and Pediatrics Pulmonary Service, Department of Pediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Israel","family":"Amirav","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nael","family":"Elias","sequence":"additional","affiliation":[{"name":"Saint Vincent De-Paul Hospital, Nazareth, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eitan","family":"Kerem","sequence":"additional","affiliation":[{"name":"Cystic Fibrosis and PCD Center, Hadassah Hebrew University Hospital, Jerusalem, Israel; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Shoseyov","sequence":"additional","affiliation":[{"name":"Cystic Fibrosis and PCD Center, Hadassah Hebrew University Hospital, Jerusalem, Israel; 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