4FKC
Recombinant prolidase from Thermococcus sibiricus
Summary for 4FKC
| Entry DOI | 10.2210/pdb4fkc/pdb |
| Descriptor | Xaa-Pro aminopeptidase, CADMIUM ION (3 entities in total) |
| Functional Keywords | pita-bread structure, prolidase, hydrolase |
| Biological source | Thermococcus sibiricus |
| Total number of polymer chains | 1 |
| Total formula weight | 43947.63 |
| Authors | Trofimov, A.A.,Slutskaya, E.S.,Polyakov, K.M.,Dorovatovskii, P.V.,Gumerov, V.M.,Popov, V.O. (deposition date: 2012-06-13, release date: 2012-11-07, Last modification date: 2023-09-13) |
| Primary citation | Trofimov, A.A.,Slutskaya, E.A.,Polyakov, K.M.,Dorovatovskii, P.V.,Gumerov, V.M.,Popov, V.O. Influence of intermolecular contacts on the structure of recombinant prolidase from Thermococcus sibiricus. Acta Crystallogr.,Sect.F, 68:1275-1278, 2012 Cited by PubMed Abstract: Prolidases are peptidases that are specific for dipeptides with proline as the second residue. The structure of recombinant prolidase from the hyperthermophilic archaeon Thermococcus sibiricus (Tsprol) was determined at 2.6 Å resolution. The homodimer of Tsprol is characterized by a complete lack of interactions between the N- and C-terminal domains of the two subunits and hence can be considered to be the most open structure when compared with previously structurally studied prolidases. This structure exists owing to intermolecular coordination bonds between cadmium ions derived from the crystallization solution and histidine residues of a His tag and aspartate and glutamate residues, which link the dimers to each other. This linking leads to the formation of a crystal with a loose packing of protein molecules and low resistance to mechanical influence and temperature increase. PubMed: 23143231DOI: 10.1107/S174430911203761X PDB entries with the same primary citation |
| Experimental method | X-RAY DIFFRACTION (2.6 Å) |
Structure validation
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