Large-scale domain dynamics and adenosylcobalamin reorientation orchestrate radical catalysis in ornithine 4,5-aminomutase.
Wolthers, K.R., Levy, C., Scrutton, N.S., Leys, D.(2010) J Biol Chem 285: 13942-13950
- PubMed: 20106986 
- DOI: 10.1074/jbc.M109.068908
- Primary Citation of Related Structures:  
3KOW, 3KOX, 3KOY, 3KOZ, 3KP0, 3KP1 - PubMed Abstract: 
D-ornithine 4,5-aminomutase (OAM) from Clostridium sticklandii converts D-ornithine to 2,4-diaminopentanoic acid by way of radical propagation from an adenosylcobalamin (AdoCbl) to a pyridoxal 5'-phosphate (PLP) cofactor. We have solved OAM crystal structures in different catalytic states that together demonstrate unusual stability of the AdoCbl Co-C bond and that radical catalysis is coupled to large-scale domain motion ...