2c8t

X-ray diffraction
3Å resolution

The 3.0 A Resolution Structure of Caseinolytic Clp Protease 1 from Mycobacterium tuberculosis

Released:

Function and Biology Details

Reaction catalysed:
Hydrolysis of proteins to small peptides in the presence of ATP and magnesium. Alpha-Casein is the usual test substrate. In the absence of ATP, only oligopeptides shorter than five residues are hydrolyzed (such as succinyl-Leu-Tyr-|-NHMec; and Leu-Tyr-Leu-|-Tyr-Trp, in which cleavage of the -Tyr-|-Leu- and -Tyr-|-Trp bonds also occurs).

Structure analysis Details

Assemblies composition:
homo tetradecamer
homo heptamer (preferred)
PDBe Complex ID:
PDB-CPX-161948 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
ATP-dependent Clp protease proteolytic subunit 1 Chains: A, B, C, D, E, F, G, H, I, J, K, L, M, N
Molecule details ›
Chains: A, B, C, D, E, F, G, H, I, J, K, L, M, N
Length: 206 amino acids
Theoretical weight: 22.41 KDa
Source organism: Mycobacterium tuberculosis H37Rv
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P9WPC5 (Residues: 2-200; Coverage: 100%)
Gene names: MTV008.17c, Rv2461c, clpP, clpP1
Sequence domains: Clp protease
Structure domains: 2-enoyl-CoA Hydratase; Chain A, domain 1

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-3
Spacegroup: P21
Unit cell:
a: 96.719Å b: 168.218Å c: 103.761Å
α: 90° β: 114.6° γ: 90°
R-values:
R R work R free
0.214 0.213 0.238
Expression system: Escherichia coli BL21(DE3)