1lok
The 1.20 Angstrom Resolution Crystal Structure of the Aminopeptidase from Aeromonas proteolytica Complexed with Tris: A Tale of Buffer InhibitionThe 1.20 Angstrom Resolution Crystal Structure of the Aminopeptidase from Aeromonas proteolytica Complexed with Tris: A Tale of Buffer Inhibition
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe aminopeptidase from Aeromonas proteolytica (AAP) is a bridged bimetallic enzyme that removes the N-terminal amino acid from a peptide chain. To fully understand the metal roles in the reaction pathway of AAP we have solved the 1.20 A resolution crystal structure of native AAP (PDB ID = 1LOK). The high-quality electron density maps showed a single Tris molecule chelated to the active site Zn(2+), alternate side chain conformations for some side chains, a sodium ion that mediates a crystal contact, a surface thiocyanate ion, and several potential hydrogen atoms. In addition, the high precision of the atomic positions has led to insight into the protonation states of some of the active site amino acid side chains. The 1.20 A resolution crystal structure of the aminopeptidase from Aeromonas proteolytica complexed with tris: a tale of buffer inhibition.,Desmarais WT, Bienvenue DL, Bzymek KP, Holz RC, Petsko GA, Ringe D Structure. 2002 Aug;10(8):1063-72. PMID:12176384[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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