In:
Science, American Association for the Advancement of Science (AAAS), Vol. 314, No. 5800 ( 2006-11-03), p. 821-825
Abstract:
The oxidation of water to dioxygen is catalyzed within photosystem II (PSII) by a Mn 4 Ca cluster, the structure of which remains elusive. Polarized extended x-ray absorption fine structure (EXAFS) measurements on PSII single crystals constrain the Mn 4 Ca cluster geometry to a set of three similar high-resolution structures. Combining polarized EXAFS and x-ray diffraction data, the cluster was placed within PSII, taking into account the overall trend of the electron density of the metal site and the putative ligands. The structure of the cluster from the present study is unlike either the 3.0 or 3.5 angstrom–resolution x-ray structures or other previously proposed models.
Type of Medium:
Online Resource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1128186
Language:
English
Publisher:
American Association for the Advancement of Science (AAAS)
Publication Date:
2006
detail.hit.zdb_id:
128410-1
detail.hit.zdb_id:
2066996-3
detail.hit.zdb_id:
2060783-0
SSG:
11
Permalink