PMID- 31949249 OWN - NLM STAT- MEDLINE DCOM- 20201110 LR - 20210115 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 10 IP - 1 DP - 2020 Jan 16 TI - The novel missense mutation Met48Lys in FKBP22 changes its structure and functions. PG - 497 LID - 10.1038/s41598-019-57374-y [doi] LID - 497 AB - Mutations in the FKBP14 gene encoding FKBP22 (FK506 Binding Protein 22 kDa) cause kyphoscoliotic Ehlers-Danlos Syndrome (kEDS). The first clinical report showed that a lack of FKBP22 protein due to mutations causing nonsense-mediated decay of the mRNA leads to a wide spectrum of clinical phenotypes including progressive kyphoscoliosis, joint hypermobility, hypotonia, hyperelastic skin, hearing loss and aortic rupture. Our previous work showed that these phenotypic features could be correlated with the functions of FKBP22, which preferentially binds to type III, VI and X collagens, but not to type I, II or V collagens. We also showed that FKBP22 catalyzed the folding of type III collagen through its prolyl isomerase activity and acted as a molecular chaperone for type III collagen. Recently, a novel missense mutation Met48Lys in FKBP22 was identified in a patient with kEDS. In this report, we expand the list of substrates of FKBP22 and also demonstrate that the Met48Lys mutation diminishes the activities of FKBP22, indicating that pathology can arise from absence of FKBP22, or partial loss of its function. FAU - Ishikawa, Yoshihiro AU - Ishikawa Y AUID- ORCID: 0000-0003-2013-0518 AD - Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR, USA. yoshi.molecularensemble@gmail.com. AD - Shriners Hospital for Children, Research Department, Portland, OR, USA. yoshi.molecularensemble@gmail.com. AD - Department of Ophthalmology, University of California, School of Medicine, San Francisco, CA, USA. yoshi.molecularensemble@gmail.com. FAU - Mizuno, Nobuyo AU - Mizuno N AD - Shriners Hospital for Children, Research Department, Portland, OR, USA. AD - Vaccine and Gene Therapy Institute, Oregon Health and Science University, Portland, Oregon, USA. FAU - Holden, Paul AU - Holden P AD - Shriners Hospital for Children, Research Department, Portland, OR, USA. FAU - Lim, Pei Jin AU - Lim PJ AD - Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland. FAU - Gould, Douglas B AU - Gould DB AD - Department of Ophthalmology, University of California, School of Medicine, San Francisco, CA, USA. AD - Department of Anatomy, University of California, School of Medicine, San Francisco, CA, USA. FAU - Rohrbach, Marianne AU - Rohrbach M AD - Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland. FAU - Giunta, Cecilia AU - Giunta C AD - Connective Tissue Unit, Division of Metabolism and Children's Research Centre, University Children's Hospital, Zurich, Switzerland. FAU - Bachinger, Hans Peter AU - Bachinger HP AD - Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, OR, USA. LA - eng GR - R01 NS096173/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20200116 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Collagen Type III) RN - EC 5.2.1.8 (FKBP14 protein, human) RN - EC 5.2.1.8 (Peptidylprolyl Isomerase) SB - IM MH - Cells, Cultured MH - Circular Dichroism MH - Collagen Type III/chemistry/*metabolism MH - Humans MH - Models, Molecular MH - *Mutation, Missense MH - Peptidylprolyl Isomerase/*chemistry/genetics/*metabolism MH - Protein Conformation MH - Protein Folding PMC - PMC6965642 COIS- The authors declare no competing interests. EDAT- 2020/01/18 06:00 MHDA- 2020/11/11 06:00 PMCR- 2020/01/16 CRDT- 2020/01/18 06:00 PHST- 2019/06/17 00:00 [received] PHST- 2019/12/28 00:00 [accepted] PHST- 2020/01/18 06:00 [entrez] PHST- 2020/01/18 06:00 [pubmed] PHST- 2020/11/11 06:00 [medline] PHST- 2020/01/16 00:00 [pmc-release] AID - 10.1038/s41598-019-57374-y [pii] AID - 57374 [pii] AID - 10.1038/s41598-019-57374-y [doi] PST - epublish SO - Sci Rep. 2020 Jan 16;10(1):497. doi: 10.1038/s41598-019-57374-y.