1aw8
From Proteopedia
PYRUVOYL DEPENDENT ASPARTATE DECARBOXYLASE
Overview
The structure of L-aspartate-alpha-decarboxylase from E. coli has been determined at 2.2 A resolution. The enzyme is a tetramer with pseudofour-fold rotational symmetry. The subunits are six-stranded beta-barrels capped by small alpha-helices at each end. The active sites are located between adjacent subunits. The electron density provides evidence for catalytic pyruvoyl groups at three active sites and an ester at the fourth. The ester is an intermediate in the autocatalytic self-processing leading to formation of the pyruvoyl group. This unprecedented structure provides novel insights into the general phenomenon of protein processing.
About this Structure
1AW8 is a Protein complex structure of sequences from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Crystal structure of aspartate decarboxylase at 2.2 A resolution provides evidence for an ester in protein self-processing., Albert A, Dhanaraj V, Genschel U, Khan G, Ramjee MK, Pulido R, Sibanda BL, von Delft F, Witty M, Blundell TL, Smith AG, Abell C, Nat Struct Biol. 1998 Apr;5(4):289-93. PMID:9546220 Page seeded by OCA on Fri May 2 10:46:11 2008
Categories: Aspartate 1-decarboxylase | Escherichia coli | Protein complex | Abell, C. | Albert, A. | Blundell, T L. | Dhanaraj, V. | Genschel, U. | Khan, G. | Pulido, R. | Ramjee, M K. | Smith, A G. | Sybanda, B L. | Vondelf, F. | Witty, M. | Decarboxylase | Lyase | Pantothenate pathway | Protein self-processing
