Biological Assembly 1  

 3D View: Structure | Predict Membrane 

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 59.92 kDa 
• Atom Count: 4131 
• Modelled Residue Count: 534 
• Deposited Residue Count: 544 
• Unique protein chains: 2

1N8S

Structure of the pancreatic lipase-colipase complex

• DOI: 10.2210/pdb1N8S/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens, Sus scrofa
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2002-11-21 Released: 2002-12-18 
• Deposition Author(s): van Tilbeurgh, H., Sarda, L., Verger, R., Cambillau, C.

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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 

Literature

Structure of the pancreatic lipase-procolipase complex

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

(1992) Nature 359: 159-162

• PubMed: 1522902 
• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Triacylglycerol lipase, pancreatic	A	449	Homo sapiens	Mutation(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 GTEx:  ENSG00000175535

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
colipase II	B [auth C]	95	Sus scrofa	Mutation(s): 0  Gene Names: CLPS Membrane Entity: Yes
UniProt
Find proteins for P02703 (Sus scrofa) Explore P02703  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 
• R-Value Observed: 0.230 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.3	α = 90
b = 80.3	β = 90
c = 251	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
AUTOMAR	data reduction
MLPHARE	phasing
X-PLOR	refinement
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-11-21 
• Released Date: 2002-12-18 
Deposition Author(s): van Tilbeurgh, H., Sarda, L., Verger, R., Cambillau, C.

Revision History  

• 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