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 
  • R-Value Observed: 0.186 

wwPDB Validation   3D Report Full Report


This is version 1.4 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
  • Primary Citation of Related Structures:  
    1LPA

  • 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 catalytic t ...

    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: 
    • 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 --: --
    • Structure of the Pancreatic Lipase-Procolipase Complex
      Van Tilbeurgh, H., Sarda, L., Verger, R., Cambillau, C.
      (1992) Nature 359: 159

    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
COLIPASE A95Sus scrofaMutation(s): 0 
Gene Names: CLPS
Find proteins for P02703 (Sus scrofa)
Explore P02703 
Go to UniProtKB:  P02703
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
LIPASE B449Homo sapiensMutation(s): 0 
Gene Names: PNLIP
EC: 3.1.1.3
Find proteins for P16233 (Homo sapiens)
Explore P16233 
Go to UniProtKB:  P16233
NIH Common Fund Data Resources
PHAROS:  P16233
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PLC
Query on PLC

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

Download Ideal Coordinates CCD File 
B
nonyl beta-D-glucopyranoside
C15 H30 O6
QFAPUKLCALRPLH-UXXRCYHCSA-N
 Ligand Interaction
CA
Query on CA

Download Ideal Coordinates CCD File 
B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.04 Å
  • R-Value Work: 0.186 
  • R-Value Observed: 0.186 
  • Space Group: P 42 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 133.4α = 90
b = 133.4β = 90
c = 92.6γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-11-01
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other
  • Version 1.4: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary