Download MendeleyCrystallization and preliminary crystallographic analysis of the Escherichia coli tyrosine aminotransferase.
Ko, T.P., Wu, S.P., Yang, W.Z., Tsai, H., Yuan, H.S.(1999) Acta Crystallogr D Biol Crystallogr 55: 1474-1477
- PubMed: 10417420
- DOI: https://doi.org/10.1107/s0907444999006630
- Primary Citation of Related Structures:
3TAT - PubMed Abstract:
Tyrosine aminotransferase catalyzes transamination for both dicarboxylic and aromatic amino-acid substrates. The substrate-free Escherichia coli tyrosine aminotransferase (eTAT) bound with the cofactor pyridoxal 5'-phosphate (PLP) was crystallized in the trigonal space group P3(2). A low-resolution crystal structure of eTAT was determined by molecular-replacement methods. The overall folding of eTAT resembles that of the aspartate aminotransferases, with the two identical subunits forming a dimer in which each monomer binds a PLP molecule via a covalent bond linked to the epsilon-NH(2) group of Lys258. Comparison of the structure of eTAT with those of the open, half-open or closed form of chicken or E. coli aspartate aminotransferases shows the eTAT structure to be in the open conformation.
Organizational Affiliation:
Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan 11529, Taiwan.
