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 

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

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Triacylglycerol lipase, pancreatic
A
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
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
colipase II
C
95Sus scrofaMutation(s): 0 
Gene Names: CLPS
Find proteins for P02703 (Sus scrofa)
Go to Gene View: CLPS
Go to UniProtKB:  P02703
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.04 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.230 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 80.300α = 90.00
b = 80.300β = 90.00
c = 251.000γ = 120.00
Software Package:
Software NamePurpose
MLPHAREphasing
XDSdata scaling
X-PLORrefinement
AUTOMARdata reduction
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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