1I05

CRYSTAL STRUCTURE OF MOUSE MAJOR URINARY PROTEIN (MUP-I) COMPLEXED WITH HYDROXY-METHYL-HEPTANONE

• PDB DOI: https://doi.org/10.2210/pdb1I05/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-01-28 Released: 2001-02-14 
• Deposition Author(s): Timm, D.E., Baker, L.J., Mueller, H., Zidek, L., Novotny, M.V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.230 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 

Starting Model: experimental

Literature

Structural Basis of Pheromone Binding to Mouse Major Urinary Protein (MUP-I)

Timm, D.E., Baker, L.J., Mueller, H., Zidek, L., Novotny, M.V.

(2001) Protein Sci 10: 997-1004

• PubMed: 11316880 
• DOI: https://doi.org/10.1110/ps.52201
• Primary Citation of Related Structures:  
  1I04, 1I05, 1I06


• PubMed Abstract: 
  

  The mouse major urinary proteins are pheromone-binding proteins that function as carriers of volatile effectors of mouse physiology and behavior. Crystal structures of recombinant mouse major urinary protein-I (MUP-I) complexed with the synthetic pheromones, 2-sec-butyl-4,5-dihydrothiazole and 6-hydroxy-6-methyl-3-heptanone, have been determined at high resolution. The purification of MUP-I from mouse liver and a high-resolution structure of the natural isolate are also reported. These results show the binding of 6-hydroxy-6-methyl-3-heptanone to MUP-I, unambiguously define ligand orientations for two pheromones within the MUP-I binding site, and suggest how different chemical classes of pheromones can be accommodated within the MUP-I beta-barrel.

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Organizational Affiliation: 

Department of Biochemistry, Indiana University, Indianapolis, Indiana 46202, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 21.61 kDa 
• Atom Count: 1,337 
• Modelled Residue Count: 156 
• Deposited Residue Count: 180 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MAJOR URINARY PROTEIN I	A	180	Mus musculus	Mutation(s): 0  Gene Names: MUP-I
UniProt
Find proteins for P02762 (Mus musculus) Explore P02762  Go to UniProtKB:  P02762

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
LTL	I [auth A]	6-HYDROXY-6-METHYL-HEPTAN-3-ONE C8 H16 O2 FGPMBONEKHYAHO-UHFFFAOYSA-N
CD	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.230 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.927	α = 90
b = 56.927	β = 90
c = 108.593	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-02-14 
Deposition Author(s): Timm, D.E., Baker, L.J., Mueller, H., Zidek, L., Novotny, M.V.

Revision History  

• Version 1.0: 2001-02-14
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-09
  Changes: Data collection, Database references, Derived calculations, Refinement description