1byo

WILD-TYPE PLASTOCYANIN FROM SILENEWILD-TYPE PLASTOCYANIN FROM SILENE

Structural highlights 1byo is a 2 chain structure with sequence from Silene latifolia subsp. alba. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2Å Ligands: Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function PLAS_SILLB Participates in electron transfer between P700 and the cytochrome b6-f complex in photosystem I. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Plastocyanin functions as an electron carrier between the cytochrome b6f complex and photosystem I. The crystal structures of the wild-type and E43K/D44K double mutant from the higher plant, Silene, have been determined at 2.0 and 1.75 A resolution, respectively. The wild-type plastocyanin comprises two monomers per asymmetric unit, one of which shows the unusually great distance between the copper ion and the Ndelta1 atom of H87 because of the hydrogen bond network formation between H87 and symmetry-related G10. The root mean square deviation for Ca atoms between the wild-type and mutant plastocyanins is 0.44 A, however, the electrostatic potential maps of their molecular surfaces are remarkably different. The low electron-transfer rate in the E43K/D44K mutant results from the hindrance of electrostatic interactions, not from the structural change due to the mutation. Crystal structures of wild-type and mutant plastocyanins from a higher plant, Silene.,Sugawara H, Inoue T, Li C, Gotowda M, Hibino T, Takabe T, Kai Y J Biochem. 1999 May;125(5):899-903. PMID:10220581 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Plastocyanin 3D structures

spinqualitylabelsall models 1byo, resolution 2.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image