6ppe

Electron Microscopy
3.19Å resolution

ClpP and ClpX IGF loop in ClpX-ClpP complex with D7 symmetry

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).
Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
hetero 28-mer (preferred)
PDBe Complex ID:
PDB-CPX-141327 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
ATP-dependent Clp protease proteolytic subunit 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: 192 amino acids
Theoretical weight: 21.52 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A6G7 (Residues: 16-207; Coverage: 93%)
Gene names: JW0427, b0437, clpP, lopP
Sequence domains: Clp protease
ATP-dependent Clp protease ATP-binding subunit ClpX Chains: 1, 2, 3, O, P, Q, R, S, T, U, V, X, Y, Z
Molecule details ›
Chains: 1, 2, 3, O, P, Q, R, S, T, U, V, X, Y, Z
Length: 369 amino acids
Theoretical weight: 39.84 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
  • Canonical: P0A6H1 (Residues: 62-424; Coverage: 86%)
Gene names: JW0428, b0438, clpX, lopC
Sequence domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

wwPDB Validation report is not available for this EM entry.
Resolution: 3.19Å
Relevant EMDB volumes: EMD-20434
Expression system: Escherichia coli