A 30-angstrom-long U-shaped catalytic tunnel in the crystal structure of polyamine oxidase.
Binda, C., Coda, A., Angelini, R., Federico, R., Ascenzi, P., Mattevi, A.(1999) Structure 7: 265-276
- PubMed: 10368296 
- DOI: https://doi.org/10.1016/s0969-2126(99)80037-9
- Primary Citation of Related Structures:  
1B37, 1B5Q - PubMed Abstract: 
Polyamines are essential for cell growth and differentiation; compounds interfering with their metabolism are potential anticancer agents. Polyamine oxidase (PAO) plays a central role in polyamine homeostasis. The enzyme utilises an FAD cofactor to catalyse the oxidation of the secondary amino groups of spermine and spermidine.
Organizational Affiliation: 
Dipartimento di Genetica e Microbiologia, Università di Pavia, Via Abbiategrasso 207, I-27100 Pavia, Italy.