Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 59638.91 
• Atom Count: 4085 
• Residue Count: 549 
• Unique protein chains: 1

1LPO

ANALOGS OF REACTION INTERMEDIATES IDENTIFY A UNIQUE SUBSTRATE BINDING SITE IN CANDIDA RUGOSA LIPASE

• DOI: 10.2210/pdb1LPO/pdb

• Classification: HYDROLASE
• Organism(s): Diutina rugosa


• Deposited: 1995-01-13 Released: 1995-04-20 
• Deposition Author(s): Grochulski, P.G., Cygler, M.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.18 Å
• R-Value Work: 0.149 

Literature

Analogs of reaction intermediates identify a unique substrate binding site in Candida rugosa lipase.

Grochulski, P., Bouthillier, F., Kazlauskas, R.J., Serreqi, A.N., Schrag, J.D., Ziomek, E., Cygler, M.

(1994) Biochemistry 33: 3494-3500

• PubMed: 8142346 
• Primary Citation of Related Structures:  
  1LPP, 1LPN


• PubMed Abstract: 
  

The structures of Candida rugosa lipase-inhibitor complexes demonstrate that the scissile fatty acyl chain is bound in a narrow, hydrophobic tunnel which is unique among lipases studied to date. Modeling of triglyceride binding suggests that the bound lipid must adopt a "tuning fork" conformation. The complexes, analogs of tetrahedral intermediates of the acylation and deacylation steps of the reaction pathway, localize the components of the oxyanion hole and define the stereochemistry of ester hydrolysis. Comparison with other lipases suggests that the positioning of the scissile fatty acyl chain and ester bond and the stereochemistry of hydrolysis are the same in all lipases which share the alpha/beta-hydrolase fold.

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Related Citations: 

• Insights Into Interfacial Activation from an Open Structure of Candida Rugosa Lipase
  Grochulski, P.,Li, Y.,Schrag, J.D.,Bouthillier, F.,Smith, P.,Harrison, D.,Rubin, B.,Cygler, M.
  (1993) J.Biol.Chem. 268: 12843
• A Structural Basis for the Chiral Preferences of Lipases
  Cygler, M.,Grochulski, P.,Kazlauskas, R.J.,Schrag, J.D.,Bouthillier, F.,Rubin, B.,Serregi, A.N.,Gupta, A.K.
  (1994) J.Am.Chem.Soc. 116: 3180
• Two Conformational States of Candida Rugosa Lipase
  Grochulski, P.,Li, Y.,Schrag, J.D.,Cygler, M.
  (1994) Protein Sci. 3: 82




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Organizational Affiliation: 

Biotechnology Research Institute, National Research Council of Canada, Montréal, Quebec.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
LIPASE	A	549	Diutina rugosa	Mutation(s): 0  Gene Names: LIP1 EC: 3.1.1.3
Find proteins for P20261 (Diutina rugosa) Go to UniProtKB:  P20261

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
HDS	A	1-HEXADECANOSULFONIC ACID C16 H34 O3 S SSILHZFTFWOUJR-UHFFFAOYSA-N
CA	A	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
NAG	A	N-ACETYL-D-GLUCOSAMINE C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.18 Å
• R-Value Work: 0.149 
• Space Group: C 2 2 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 65.000	α = 90.00
b = 97.600	β = 90.00
c = 176.300	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	refinement
X-PLOR	phasing
X-PLOR	model building

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1995-01-13 
• Released Date: 1995-04-20 
• Deposition Author(s): Grochulski, P.G., Cygler, M.C.

Revision History 

• Version 1.0: 1995-04-20
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Non-polymer description, Version format compliance