The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Identification of histidine at the catalytic site of the photosynthetic oxygen-evolving complex.

The molecular oxygen in our atmosphere is a product of a water-splitting reaction that occurs in the oxygen-evolving complex of photosystem II of oxygenic photosynthesis. The catalytic core of the oxygen-evolving complex is an ensemble of four manganese atoms arranged in a cluster of undetermined structure. The pulsed electron paramagnetic resonance (EPR) technique of electron spin-echo envelope modulation (ESEEM) can be used to measure nuclear spin transitions of nuclei magnetically coupled to paramagnetic metal centers of enzymes. We report the results of ESEEM experiments on the cyanobacterium Synechocystis PCC 6803 selectively labeled with 15N at the two nitrogen sites of the imidazole side chain of histidine residues. The experiments demonstrate that histidine is bound to manganese in the oxygen-evolving complex.[1]

References

  1. Identification of histidine at the catalytic site of the photosynthetic oxygen-evolving complex. Tang, X.S., Diner, B.A., Larsen, B.S., Gilchrist, M.L., Lorigan, G.A., Britt, R.D. Proc. Natl. Acad. Sci. U.S.A. (1994) [Pubmed]
 
WikiGenes - Universities