1N8S

Structure of the pancreatic lipase-colipase complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.04 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of the pancreatic lipase-procolipase complex

van Tilbeurgh, H.Sarda, L.Verger, R.Cambillau, C.

(1992) Nature 359: 159-162

  • DOI: 10.1038/359159a0
  • Primary Citation of Related Structures:  
    1N8S

  • PubMed Abstract: 
  • Interfacial adsorption of pancreatic lipase is strongly dependent on the physical chemical properties of the lipid surface. These properties are affected by amphiphiles such as phospholipids and bile salts. In the presence of such amphiphiles, lipase binding to the interface requires a protein cofactor, colipase ...

    Interfacial adsorption of pancreatic lipase is strongly dependent on the physical chemical properties of the lipid surface. These properties are affected by amphiphiles such as phospholipids and bile salts. In the presence of such amphiphiles, lipase binding to the interface requires a protein cofactor, colipase. We obtained crystals of the pancreatic lipase-procolipase complex and solved the structure at 3.04 A resolution. Here we describe the structure of procolipase, which essentially consists of three 'fingers' and is topologically comparable to snake toxins. The tips of the fingers contain most of the hydrophobic amino acids and presumably form the interfacial binding site. Lipase binding occurs at the opposite side to this site and involves polar interactions. Determination of the three-dimensional structure of pancreatic lipase has revealed the presence of two domains: an amino-terminal domain, at residues 1-336 containing the active site and a carboxy-terminal domain at residues 337-449 (ref. 6). Procolipase binds exclusively to the C-terminal domain of lipase. No conformational change in the lipase molecule is induced by the binding of procolipase.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Triacylglycerol lipase, pancreaticA449Homo sapiensMutation(s): 0 
Gene Names: PNLIP
EC: 3.1.1.3
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P16233 (Homo sapiens)
Explore P16233 
Go to UniProtKB:  P16233
PHAROS:  P16233
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
colipase IIB [auth C]95Sus scrofaMutation(s): 0 
Gene Names: CLPS
Membrane Entity: Yes 
UniProt
Find proteins for P02703 (Sus scrofa)
Explore P02703 
Go to UniProtKB:  P02703
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.04 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.230 
  • R-Value Observed: 0.230 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 80.3α = 90
b = 80.3β = 90
c = 251γ = 120
Software Package:
Software NamePurpose
XDSdata scaling
AUTOMARdata reduction
MLPHAREphasing
X-PLORrefinement
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-12-18
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description