1LPA

INTERFACIAL ACTIVATION OF THE LIPASE-PROCOLIPASE COMPLEX BY MIXED MICELLES REVEALED BY X-RAY CRYSTALLOGRAPHY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.04 Å
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Interfacial activation of the lipase-procolipase complex by mixed micelles revealed by X-ray crystallography.

van Tilbeurgh, H.Egloff, M.P.Martinez, C.Rugani, N.Verger, R.Cambillau, C.

(1993) Nature 362: 814-820

  • DOI: 10.1038/362814a0

  • PubMed Abstract: 
  • The three-dimensional structure of the lipase-procolipase complex, co-crystallized with mixed micelles of phosphatidylcholine and bile salt, has been determined at 3 A resolution by X-ray crystallography. The lid, a surface helix covering the catalyt ...

    The three-dimensional structure of the lipase-procolipase complex, co-crystallized with mixed micelles of phosphatidylcholine and bile salt, has been determined at 3 A resolution by X-ray crystallography. The lid, a surface helix covering the catalytic triad of lipase, adopts a totally different conformation which allows phospholipid to bind to the enzyme's active site. The open lid is an essential component of the active site and interacts with procolipase. Together they form the lipid-water interface binding site. This reorganization of the lid structure provokes a second drastic conformational change in an active site loop, which in its turn creates the oxyanion hole (induced fit).


    Related Citations: 
    • Structure of the Pancreatic Lipase-Procolipase Complex
      Van Tilbeurgh, H.,Sarda, L.,Verger, R.,Cambillau, C.
      (1992) Nature 359: 159
    • The 2.46 Angstroms Resolution Structure of the Pancreatic Lipase Colipase Complex Inhibited by a C11 Alkyl Phosphonate
      Egloff, M.-P.,Marguet, F.,Buono, G.,Verger, R.,Cambillau, C.,Van Tilbeurgh, H.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    LCCMB-CNRS, Faculté de Médecine Nord, Marseilles, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
COLIPASE
A
95Sus scrofaMutation(s): 0 
Gene Names: CLPS
Find proteins for P02703 (Sus scrofa)
Go to Gene View: CLPS
Go to UniProtKB:  P02703
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
LIPASE
B
449Homo sapiensMutation(s): 0 
Gene Names: PNLIP
EC: 3.1.1.3
Find proteins for P16233 (Homo sapiens)
Go to Gene View: PNLIP
Go to UniProtKB:  P16233
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
PLC
Query on PLC

Download SDF File 
Download CCD File 
B
DIUNDECYL PHOSPHATIDYL CHOLINE
C32 H65 N O8 P
IJFVSSZAOYLHEE-SSEXGKCCSA-O
 Ligand Interaction
BNG
Query on BNG

Download SDF File 
Download CCD File 
B
B-NONYLGLUCOSIDE
C15 H30 O6
QFAPUKLCALRPLH-UXXRCYHCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.04 Å
  • R-Value Work: 0.186 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 133.400α = 90.00
b = 133.400β = 90.00
c = 92.600γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-11-01
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other