Function

Clp protease (CLP) is a serine peptidase which hydrolyzes proteins in the presence of ATP and Mg+2 ion. CLP is found in mitochondria. CLP participates in degradation of misfolded proteins.[1]

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Structural highlights

CLP is a heterodimer containing an ATP-binding regulatory subunit A ClpA or Hsp100 in Heat Shock Proteins and catalytic subunit P ClpP. The proteolytic complex is composed of flanked by hexameric rings of ClpA. For full proteolytic activity ClpP must associate with one of two related ATPase subunits: ClpA and ClpX.

3D structures of Clp protease

Clp protease 3D structures


E. coli Clp protease catalytic subunit (PDB entry 1tyf)

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ReferencesReferences

  1. Maurizi MR, Clark WP, Katayama Y, Rudikoff S, Pumphrey J, Bowers B, Gottesman S. Sequence and structure of Clp P, the proteolytic component of the ATP-dependent Clp protease of Escherichia coli. J Biol Chem. 1990 Jul 25;265(21):12536-45. PMID:2197275

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