Isoelectric point of plastocyanin
| Range | 8-9 Unitless |
|---|---|
| Organism | Cyanobacteria Anabaena |
| Reference | De la Cerda B, Navarro JA, Hervás M, De la Rosa MA Changes in the reaction mechanism of electron transfer from plastocyanin to photosystem I in the cyanobacterium Synechocystis sp. PCC 6803 as induced by site-directed mutagenesis of the copper protein. Biochemistry. 1997 Aug 1936(33):10125-30.PubMed ID9254609 |
| Comments | Plastocyanin (Pc) is a small single-copper protein (molecular mass, 10.5 kDa) which functions as a mobile electron carrier in the thylakoid lumen of oxygen-evolving photosynthetic organisms. It is interesting to note that Pc is acidic in higher plants and green algae, with an isoelectric point of 3.5-4, but in cyanobacteria it can be either almost neutral, as is the case in Synechocystis, with an isoelectric point close to 6, or basic, as in Anabaena, with an isoelectric point of 8-9 |
| Entered by | Uri M |
| ID | 104023 |