1CLH

THREE-DIMENSIONAL SOLUTION STRUCTURE OF ESCHERICHIA COLI PERIPLASMIC CYCLOPHILIN


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 12 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Three-dimensional solution structure of Escherichia coli periplasmic cyclophilin

Clubb, R.T.Ferguson, S.B.Walsh, C.T.Wagner, G.

(1994) Biochemistry 33: 2761-2772

  • Also Cited By: 1CSA

  • PubMed Abstract: 
  • The solution structure of the periplasmic cyclophilin type cis-trans peptidyl-prolyl isomerase from Escherichia coli (167 residues, MW > 18.200) has been determined using multidimensional heteronuclear NMR spectroscopy and distance geometry calculati ...

    The solution structure of the periplasmic cyclophilin type cis-trans peptidyl-prolyl isomerase from Escherichia coli (167 residues, MW > 18.200) has been determined using multidimensional heteronuclear NMR spectroscopy and distance geometry calculations. The structure determination is based on a total of 1720 NMR-derived restraints (1566 distance and 101 phi and 53 chi 1 torsion angle restraints). Twelve distance geometry structures were calculated, and the average root-mean-square (rms) deviation about the mean backbone coordinate positions is 0.84 +/- 0.18 A for the backbone atoms of residues 5-165 of the ensemble. The three-dimensional structure of E. coli cyclophilin consists of an eight-stranded antiparallel beta-sheet barrel capped by alpha-helices. The average coordinates of the backbone atoms of the core residues of E. coli cyclophilin have an rms deviation of 1.44 A, with conserved regions in the crystal structure of unligated human T cell cyclophilin [Ke, H. (1992) J. Mol. Biol. 228, 539-550]. Four regions proximal to the active site differ substantially and may determine protein substrate specificity, sensitivity to cyclosporin A, and the composite drug:protein surface required to inhibit calcineurin. A residue essential for isomerase activity in human T cell cyclophilin (His126) is replaced by Tyr122 in E. coli cyclophilin without affecting enzymatic activity.


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYCLOPHILIN
A
166Escherichia coli (strain K12)Gene Names: ppiA (rot, rotA)
EC: 5.2.1.8
Find proteins for P0AFL3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AFL3
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 12 
  • Olderado: 1CLH Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-05-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance