Plastocyanin: Difference between revisions
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<StructureSection load='4dp0' size='340' side='right' caption='Poplar plastocyanin containing Cu+2 ion and glycerol (PDB ID [[4dp0]])' scene=''> | <StructureSection load='4dp0' size='340' side='right' caption='Poplar plastocyanin containing Cu+2 ion and glycerol (PDB ID [[4dp0]])' scene='91/919066/Cv/1'> | ||
== Function == | == Function == | ||
Revision as of 11:00, 7 September 2022
FunctionPlastocyanin (PCY) is the long range electron carrier from cytochrome f of photosystem II to photosystem I in photosynthetic systems[1]. PCY contains a copper atom in its active site. The Cu ion can be in oxidised form (Cu+2) or reduced form (Cu+1). Structural highlightsThe PCY molecule has an 8-strand β-barrel shape containing an acidic patch and a hydrophobic patch around the His residue in the active site[2]. His and Leu residues are involved in PCY interaction with cytochrome f needed for for the electron transport. 3D structures of plastocyanin |
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ReferencesReferences
- ↑ Hohner R, Pribil M, Herbstova M, Lopez LS, Kunz HH, Li M, Wood M, Svoboda V, Puthiyaveetil S, Leister D, Kirchhoff H. Plastocyanin is the long-range electron carrier between photosystem II and photosystem I in plants. Proc Natl Acad Sci U S A. 2020 Jun 30;117(26):15354-15362. doi:, 10.1073/pnas.2005832117. Epub 2020 Jun 15. PMID:32541018 doi:http://dx.doi.org/10.1073/pnas.2005832117
- ↑ Kachalova GS, Shosheva AC, Bourenkov GP, Donchev AA, Dimitrov MI, Bartunik HD. Structural comparison of the poplar plastocyanin isoforms PCa and PCb sheds new light on the role of the copper site geometry in interactions with redox partners in oxygenic photosynthesis. J Inorg Biochem. 2012 Oct;115:174-81. doi: 10.1016/j.jinorgbio.2012.07.015. Epub , 2012 Jul 20. PMID:22883960 doi:http://dx.doi.org/10.1016/j.jinorgbio.2012.07.015