Tentative identification of the apoproteins of iron-sulfur centers of Photosystem I |
| |
Authors: | B Lagoutte P Setif J Duranton |
| |
Institution: | Département de Biologie, CEN Saclay, 91191 Gif-sur-Yvette Cédex, France |
| |
Abstract: | A newly purified Photosystem (PS) I particle is described, with still active iron-sulfur acceptors: A, B and X. Apart from the apoprotein of P700, 3 other main polypeptides of this particle are located at 20, 17 and 10 kDa, and two minor ones are detectable at 16.5 and 8 kDa. Both in vivo 35S labeling and carboxymethylation with iodo14C]acetate show that most of the cysteine residues are located in the 8-kDa band. The amino acid composition of this band reveals important common features with small iron-sulfur proteins of the ferredoxin type. |
| |
Keywords: | Photosystem I Digitonin/deoxycholate particle Iron-sulfur protein Amino acid composition Photosynthesis |
本文献已被 ScienceDirect 等数据库收录! |