Structure of IDP02821
Crystal Structure of ATP-dependent Clp Protease Subunit P from Francisella tularensis
Annotation
- Description
- The Clp protease is an ATP-dependent protease that cleaves a number of proteins, such as casein and albumin. It exists as a heterodimer of ATP-binding regulatory A and catalytic P subunits, both of which are required for effective levels of protease activity in the presence of ATP. The Clp protease subunit P from Francisella tularensis assembled to two stacked heptameric rings that enclose a large chamber containing the protease active site including catalytic triad, Ser, His, and Glu/Asp. The N-terminal region, whose sequence is well conserved, is known to form a flexible loop protruding from the apical surface and associate with ATPase ClpA and ClpX, however, is disordered in the structure.
- Functional assignment
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Ligands
| Ligand code | Name | Ligand type |
|---|---|---|
| PO4 | phosphate ion | biological |
| GOL | glycerol | crystallization |
| PEG | di(hydroxyethyl)ether | crystallization |
| EDO | 1,2-ethanediol | crystallization |
| MG | magnesium ion | crystallization |
| MSE | selenomethionine | modified residue |
Structure information
Unit cell parameters
- Space Group
- P 21 21 2
- Unit Cell
-
a=120.52Å, b=128.82Å, c=98.03Å
α=90.00, β=90.00, γ=90.00 - Solvent content
- 48.35
- Matthews coefficient
- 2.38
- Resolution range
- 40.45-2.30Å (2.38-2.30Å)
- Rall(%)
- 18.8
- Rwork(%)/dt>
- 18.6 (23.2)
- Rfree(%)
- 22.6 (30.1)
- Num. observed reflections
- 71785 (6500)
- Num. Rfree reflections
- 3625 (322)
- Completeness(%)
- 99.2 (96.0)
- Num Atoms
- 10049
- Num Waters
- 349
- Num Hetatoms
- 698
- Model mean isotropic B factor (Å2)
- 60.140
- RMSD bond length (Å)
- 0.011
- RMSD bond angle
- 1.294°
- RMSD dihedral angle
- 17.09°
- Filename uploaded
- dep.pdb (uploaded on Oct 05, 2010 7:49 AM)
- Inserted
- Oct 05, 2010
