User:R. Jeremy Johnson/Sandbox 1
From Proteopedia
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==Basic Structure== | ==Basic Structure== | ||
| - | <ref name = "Butler"> PMID: 7016210 /ref> | + | <ref name = "Butler"> PMID: 7016210 </ref> |
==Electron Transfer== | ==Electron Transfer== | ||
| - | <ref name= | + | <ref name= "Butler" /> |
==Basic Structure== | ==Basic Structure== | ||
Revision as of 15:28, 31 March 2011
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Contents |
Background
This structure of Photosystem II was crystallized from the cyanobacteria, Thermosynechococcus elongatus, at 3.0Å [1] and at 3.50 Å [2]. PDB codes are 2axt and 1s5l, respectively. Cyanobacteria and plants both contain Photosystem II while photosynthetic bacteria contain the bacterial reaction center. This photosynthetic protein complex is associated with a variety of functional ligands. It is a composed mainly of alpha-helices. Nineteen are in each monomer, with multiple extrinsic subunits associated with the oxygen evolving complex missing from this crystallization. Photosystem II is a membrane bound protein complex that in plants is associated with the thylakoid membrane of chloroplasts. regions correlate with membrane associated nature of the protein. Hydrophobic helices make up the transmembranal portion, while polar residues are concentrated externally on either side of the membrane.
Basic Structure
Electron Transfer
[3]
Basic Structure
Additional Resources
References
- ↑ Loll, B., Kern, J., Saenger, W., Zouni, A., Biesiadka, J., "Towards complete cofactor arrangement in the 3.0 A resolution structure of photosystem II." Nature, Dec 15, 2005, 438(7070), 1040-4. PMID:16355230
- ↑ Ferreira, K.N., Iverson, T.M., Maghlaoui, K., Barber, J., Iwata, S. "Architecture of the photosynthetic oxygen-evolving center." Science, March 19, 2004, 303 (5665), 1831-8. PMID:14764885
- ↑ 3.0 3.1 Banacky P, Linder B. Model of serine proteases charge relay system -- PCILO study. Biophys Chem. 1981 Jun;13(3):223-31. PMID:7016210
- ↑ [1]
