Premium
Projection map of the reaction center‐light harvesting 1 complex from Rhodopseudomonas viridis at 10 Å resolution
Author(s) -
Ikeda-Yamasaki Ikuko,
Odahara Takayuki,
Mitsuoka Kaoru,
Fujiyoshi Yoshinori,
Murata Kazuyoshi
Publication year - 1998
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(98)00300-7
Subject(s) - photosynthetic reaction centre , resolution (logic) , ring (chemistry) , projection (relational algebra) , map projection , chemistry , physics , electron transfer , photochemistry , mathematics , cartography , organic chemistry , algorithm , artificial intelligence , computer science , geography
The photosynthetic reaction center‐light harvesting 1 complex from Rhodopseudomonas viridis was purified and reconstituted into two‐dimensional crystals. The single‐layered crystalline sheets with lattice parameters a = b =133.3 Å and γ=120° were investigated by electron cryo‐microscopy and the projection map at 10 Å resolution was calculated. The opening diameter of the light‐harvesting ring of 72 Å is sufficient to allow slight movement of the reaction center within the ring. Based on characteristic features observed in the projection map, the mechanism of energy transfer from the light‐harvesting 1 complex to the reaction center was discussed.