Crystal Structures Representing the Michaelis Complex and the Thiouronium Reaction Intermediate of Pseudomonas aeruginosa Arginine Deiminase.

MSTEKTKLGVHSEAGKLRKVMVCSPGLAHQRLTPSNCDELLFDDVIWVNQAKRDHFDFVTKMRERGIDVLEMHNLLTETI
QNPEALKWILDRKITADSVGLGLTSELRSWLESLEPRKLAEYLIGGVAADDLPASEGANILKMYREYLGHSSFLLPPLPN
TQFTRATTCWIYGGVTLNPMYWPARRQETLLTTAIYKFHPEFANAEFEIWYGDPDKDHGSSTLEGGDVMPIGNGVVLIGM
GERSSRQAIGQVAQSLFAKGAAERVIVAGLPKSRAAMHLDTVFSFCDRDLVTVFPEVVKEIVPFSLRPDPSSPYGMNIRR
EEKTFLEVVAESLGLKKLRVVETGGNSFAAEREQWDDGNNVVCLEPGVVVGYDRNTYTNTLLRKAGVEVITISASELGRG
RGGGHCMTCPIVRDPIDY

36% MPD (2-methyl-2,4-pentanediol), 6% PEG 3350, 0.1 M Tris-HCl (pH 7.6), L-arginine 0.02 M , VAPOR DIFFUSION, HANGING DROP, temperature 298.0K

The biological assembly is a tetramer generated from the molecules A, B, C and D in the asymmetric unit

arginine degradation pathway, L-arginine deiminase, catalytic mechanism, HYDROLASE

MSTEKTKLGVHSEAGKLRKVMVCSPGLAHQRLTPSNCDELLFDDVIWVNQAKRDHFDFVTKMRERGIDVLEMHNLLTETI
QNPEALKWILDRKITADSVGLGLTSELRSWLESLEPRKLAEYLIGGVAADDLPASEGANILKMYREYLGHSSFLLPPLPN
TQFTRDTTCWIYGGVTLNPMYWPARRQETLLTTAIYKFHPEFANAEFEIWYGDPDKDHGSSTLEGGDVMPIGNGVVLIGM
GERSSRQAIGQVAQSLFAKGAAERVIVAGLPKSRAAMHLDTVFSFCDRDLVTVFPEVVKEIVPFSLRPDPSSPYGMNIRR
EEKTFLEVVAESLGLKKLRVVETGGNSFAAEREQWDDGNNVVCLEPGVVVGYDRNTYTNTLLRKAGVEVITISASELGRG
RGGGHCMTCPIVRDPIDY