The 1.8 A crystal structure of catechol 1,2-dioxygenase reveals a novel hydrophobic helical zipper as a subunit linker.Vetting, M.W., Ohlendorf, D.H.
(2000) Structure 8: 429-440
- PubMed: 10801478
- DOI: https://doi.org/10.1016/s0969-2126(00)00122-2
- Primary Citation of Related Structures:
1DLM, 1DLQ, 1DLT, 1DMH
- PubMed Abstract:
Intradiol dioxygenases catalyze the critical ring-cleavage step in the conversion of catecholate derivatives to citric acid cycle intermediates. Catechol 1,2-dioxygenases (1, 2-CTDs) have a rudimentary design structure - a homodimer with one catalytic non-heme ferric ion per monomer, that is (alphaFe(3+))(2). This is in contrast to the archetypical intradiol dioxygenase protocatechuate 3,4-dioxygenase (3,4-PCD), which forms more diverse oligomers, such as (alphabetaFe(3+))(2-12).
The department of Biochemistry, Molecular Biology and Biophysics, Center for Metals in Biocatalysis, University of Minnesota Medical School, Minneapolis, MN 55455-0347, USA.