1byp

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spinqualitylabelsall models 1byp, resolution 1.75Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

E43K,D44K DOUBLE MUTANT PLASTOCYANIN FROM SILENE

Overview

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 ... [(full description)]

About this Structure

1BYP is a [Single protein] structure of sequence from [Silene pratensis] with CU as [ligand]. Full crystallographic information is available from [OCA].

Reference

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 (Tokyo). 1999 May;125(5):899-903. PMID:10220581

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