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Figure 3
Structure of A. thaliana porphobilinogen deaminase. (a) The tertiary structure is shown with domains 1 and 2 on the left-hand side and domain 3 on the right. The dipyrromethane cofactor and the residue to which it is covalently bound (Cys254) are shown in ball-and-stick representation. (b) The overall fold of the protein, emphasizing the topological symmetry of domains 1 and 2. The secondary-structure elements are labelled using the nomenclature of the E. coli enzyme (Louie et al., 1992BB31).

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
Volume 69| Part 3| February 2013| Pages 471-485
doi:10.1107/S0907444912052134
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