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Article

Identification of histidine as an axial ligand to P700+.

Biochemistry - 15 Oct 1996

Mac M, Tang X S, Diner B A, McCracken J, Babcock G T

Abstract excerpt

The primary electron donor in photosystem I (PSI), P700, is thought to be a dimeric Chl a species. Neither the electronic nor geometric structure of the cation radical is clearly understood. Magnetic resonance studies have indicated that the unpaired electron in P700+ is delocalized asymmetrically over the Chl dimer; however, the axial ligand to the central Mg2+ is not known. The recent development of a histidine...

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Identifiers

PMID: 8873594
DOI: 10.1021/bi961765f

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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Identification of histidine as an axial ligand to P700+.PMID 8873594Read ↗

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