1. Brownlie, P.D., Lambert R., Louie G.V., Jordan P.M., Blundell T.L., Warren M.J., Cooper J.B. & Wood S.P(1994) The three-dimensional structures of mutants of porphobilinogen deaminase: toward an understanding of the structural basis of acute intermittent porphyria. Protein Sci Oct; 3(10): 1644-50.

2. Jordan, P. M.(1994) The biosynthesis of uroporphyrinogen III: mechanism of action of porphobilinogen deaminase. Ciba Found Symp 180: 70-96.

3. Jordan, P. & Woodcock S. C.(1991) Mutagenesis of arginine residues in the catalytic cleft ofEserichia coli porphobilinogen deaminase that affects dipyrromethane cofactor assembly and tetrapyrrole chain initiation and elongation. Biochem J. 280: 445-9.

4. Jordan, P. & Woodcock S.(1994) Evidence for Participation of Aspartate-84 as a Catalytic Group at the Active Site of Porphobilinogen Deaminase Obtained by Site-Directed Mutagenesis of the hemC Gene from Eserichia coli. Biochemistry 33: 2688-95.

5. Louie, G. V., Brownlie P., Lambert R., Cooper J. B., Blundell T. L., Wood S.P., Warren M. J., Woodcock S. C. & Jordan P.M.(1992) Structure of porphobilinogen deaminase reveals a flexible multidomain ploymerase with a single catalytic site. Nature Sep. 3; 359:33--9.

6. Mogone, C.S., Lanyon W.G., Moore M.R., Louie G.V., Connor J.M.(1993) Detection of a high mutation frequency in exon 12 of the porphobilinogen deaminase gene in patients with acute intermittent porphyria. Human Genet Dec;92(6):619-22.

7. Scott, A. I., Roessner C.A., Stolowich N. J., Karuso P., Williams H. J., Grant S. K., Gonzalez M. D. & Hoshino T.(1988) Site-Directed Mutagenesis and High-Resolution NMR Spectroscopy of the Active Site of Porphobilinogen Deaminase. Biochemsitry 27: 7984-90.

8. Shoolingin-Jordan, P. M.(1995) Porphobilinogen Deaminase and Uroporphyrinogen III Synthase: Structure, Molecular Biology, and Mechanism. J. of Bioenerg and Biomem 27(2): 181-95.

9. Warren, M. J. & Jordan P. M.(1988) Investigation into the Nature of Substrate Binding to the Dipyrromethane Cofactor of Eserichia coli Porphobilinogen Deaminase. Biochemistry 27: 9020-30.