start-ver=1.4 cd-journal=joma no-vol= cd-vols= no-issue= article-no= start-page=73 end-page=88 dt-received= dt-revised= dt-accepted= dt-pub-year=2014 dt-pub=20140916 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Detection and analysis of non-retroviral RNA virus-like elements in plant, fungal, and insect genomes. en-subtitle= kn-subtitle= en-abstract= kn-abstract= Endogenous non-retroviral RNA like sequences (NRVSs) have been discovered in the genome of a wide range of eukaryotes. These are considered as fossil RNA viral elements integrated into host genomes by as-yet-known mechanisms, and in many cases, those fossils are estimated to be millions-of-years-old. It is likely that the number of NRVS records will increase rapidly due to the growing availability of whole-genome sequences for many kinds of eukaryotes. Discovery of the novel NRVSs and understanding of their phylogenetic relationship with modern viral relatives provide important information on deep evolutionary history of RNA virus-host interactions. In this chapter, therefore, the common strategies for the identification and characterization of endogenous NRVSs from plants, insects, and fungi are described. en-copyright= kn-copyright= en-aut-name=KondoHideki en-aut-sei=Kondo en-aut-mei=Hideki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=ChibaSotaro en-aut-sei=Chiba en-aut-mei=Sotaro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=SuzukiNobuhiro en-aut-sei=Suzuki en-aut-mei=Nobuhiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=Institute of Plant Science and Resources (IPSR), Okayama University kn-affil= affil-num=2 en-affil=Institute of Plant Science and Resources (IPSR)Okayama University kn-affil= affil-num=3 en-affil=Institute of Plant Science and Resources (IPSR), Okayama University kn-affil= en-keyword=Pareovirology kn-keyword=Pareovirology en-keyword=Molecular fossil record kn-keyword=Molecular fossil record en-keyword=Non-retrovirus-like sequence kn-keyword=Non-retrovirus-like sequence en-keyword=Database search kn-keyword=Database search en-keyword=Whole-genome shotgun kn-keyword=Whole-genome shotgun en-keyword=Genomic PCR kn-keyword=Genomic PCR en-keyword=Southern blotting kn-keyword=Southern blotting en-keyword=Phylogenetic analysis kn-keyword=Phylogenetic analysis en-keyword=Maximum-likelihood kn-keyword=Maximum-likelihood END start-ver=1.4 cd-journal=joma no-vol=684 cd-vols= no-issue= article-no= start-page=41 end-page=51 dt-received= dt-revised= dt-accepted= dt-pub-year=2011 dt-pub=2011 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Purification and Crystallization of Oxygen-Evolving Photosystem II Core Complex from Thermophilic Cyanobacteria en-subtitle= kn-subtitle= en-abstract= kn-abstract=This chapter describes the purification and crystallization of oxygen-evolving photosystem II core dimer complex from a thermophilic cyanobacterium Thermosynechococcus vulcanus. Procedures used for purification of photosystem II from the cyanobacterium involves cultivation of cells, isolation of thylakoid membranes, purification of crude and pure photosystem II core complexes by detergent solubilization, followed by differential centrifugation and column chromatography. The purified core dimer particles were successfully used for crystallization, and the methods and conditions used for crystallization are presented. These purification and crystallization procedures can be applied for another thermophilic cyanobacterium T. elongatus. en-copyright= kn-copyright= en-aut-name=ShenJian-Ren en-aut-sei=Shen en-aut-mei=Jian-Ren kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=KawakamiKeisuke en-aut-sei=Kawakami en-aut-mei=Keisuke kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=KoikeHiroyuki en-aut-sei=Koike en-aut-mei=Hiroyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=2 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=3 en-affil= kn-affil=Department of Biosciences, Faculty of Science and Engineering, Chuo University en-keyword=Photosystem II kn-keyword=Photosystem II en-keyword=Oxygen evolution kn-keyword=Oxygen evolution en-keyword=Crystallization kn-keyword=Crystallization en-keyword=Membrane proteins kn-keyword=Membrane proteins en-keyword=Ion-exchange chromatography kn-keyword=Ion-exchange chromatography END