3TAT: Tyrosine Aminotransferase From E. Coli

Citation:
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.
PDB ID: 3TATDownload
MMDB ID: 11042
PDB Deposition Date: 1998/8/12
Updated in MMDB: 2012/11
Experimental Method:
x-ray diffraction
Resolution: 3.5  Å
Source Organism:
Similar Structures:
Biological Unit for 3TAT: dimeric; determined by author and by software (PISA)
Molecular Components in 3TAT
Label Count Molecule
Proteins (2 molecules)
2
Tyrosine Aminotransferase(Gene symbol: tyrB)
Molecule annotation
Chemicals (2 molecules)
1
2
* Click molecule labels to explore molecular sequence information.

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