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Evidence from Crosslinking for a Close Association of the Extrinsic 33 kDa Protein with the 9.4 kDa Subunit of Cytochrome b 559 and the 4.8 kDa Product of the psb I Gene in Oxygen-Evolving Photosystem II Complexes from Spinach |
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| Authors: | Enami, Isao Ohta, Sachiko Mitsuhashi, Satoru Takahashi, Seitaro Ikeuchi, Masahiko Katoh, Sakae |
| Affiliation: | 1Department of Biology, Faculty of Science, Science University of Tokyo Kagurazaka, Shinjuku-ku, Tokyo, 162 Japan 2Solar Energy Research Group, The Institute of Physical and Chemical Research (RIKEN) Wako, Saitama, 351-01 Japan 3Department of Botany, Faculty of Science, University of Tokyo Hongo, Bunkyo-ku, Tokyo, 113 Japan |
| Abstract: | Oxygen-evolving photosystem II complexes from spinach, whichlack light-harvesting chlorophyll a/b proteins, were treatedwith a bifunctional crosslinking reagent, hexamethylene-diisocyanate.Identification of crosslinked proteins with antisera raisedagainst various constituent proteins of the oxygen-evolvingPS II complex showed that the extrinsic 33 kDa protein is locatedless than 11 Å from the 9.4 kDa subunit of cytochromeb 559 and the 4.8 kDa product of psb I gene. (Received October 14, 1991; Accepted February 6, 1992) |
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