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Isolation of a photosystem II reaction center consisting of D-1 and D-2 polypeptides and cytochrome b -559

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Nanba, Osamu, Satoh, Kimiyuki·1987·Proceedings of the National Academy of Sciences

Abstract

A photosystem II reaction center complex consisting of D-1 and D-2 polypeptides and cytochrome b -559 was isolated from spinach grana thylakoids, treated with 4% (wt/vol) Triton X-100, by ion-exchange chromatography using DEAE-Toyopearl 650S. The isolated complex appears to contain five chlorophyll a, two pheophytin a, one β-carotene, and one or two cytochrome b -559 heme(s) (molar ratio) and exhibits a reversible absorbance change attributable to the photochemical accumulation of reduced pheophytin typical for the intermediary electron acceptor of photosystem II reaction center. These results strongly suggest that the site of primary charge separation in photosystem II is located on the heterodimer composed of D-1 and D-2 subunits.

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Metadata

Authors
Nanba, O., & Satoh, K.
Venue
Proceedings of the National Academy of Sciences
Published
1987-01
Volume
84
Issue
1
Pages
109-112
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1981443609
Cited by
1,051
References
6
FWCI
37.65
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Isolation of a photosystem II reaction center consisting of D-1 and D-2 polypeptides and cytochrome b -559. https://app.cochat.ai/papers/10.1073/pnas.84.1.109
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Nanba, O., & Satoh, K. (1987). Isolation of a photosystem II reaction center consisting of D-1 and D-2 polypeptides and cytochrome b -559. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.84.1.109

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.