Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 36.75 kDa 
• Atom Count: 2668 
• Modelled Residue Count: 312 
• Deposited Residue Count: 324 
• Unique protein chains: 1

1BEB

BOVINE BETA-LACTOGLOBULIN, LATTICE X

• PDB DOI: 10.2210/pdb1BEB/pdb

• Classification: LIPOCALIN
• Organism(s): Bos taurus
• Mutation(s): Yes 


• Deposited: 1996-12-20 Released: 1997-05-15 
• Deposition Author(s): Brownlow, S., Morais-Cabral, J.H., Sawyer, L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.243 
• R-Value Work: 0.181 
• R-Value Observed: 0.181 

Literature

Bovine beta-lactoglobulin at 1.8 A resolution--still an enigmatic lipocalin.

Brownlow, S., Morais Cabral, J.H., Cooper, R., Flower, D.R., Yewdall, S.J., Polikarpov, I., North, A.C., Sawyer, L.

(1997) Structure 5: 481-495

• PubMed: 9115437 
• DOI: 10.1016/s0969-2126(97)00205-0
• Primary Citation of Related Structures:  
  1BEB


• PubMed Abstract: 
  

beta-Lactoglobulin (beta-Lg) is the major whey protein in the milk of ruminants and many other mammals. Its function is not known, but it undergoes at least two pH-dependent conformational changes which may be important. Bovine beta-Lg crystallizes in several different lattices, and medium-resolution structures of orthorhombic lattice Y and trigonal lattice Z have been published. Triclinic lattice X and lattice Z crystals grow at pH values either side of the pH at which one of the pH-induced conformational changes occurs. A full understanding of the structure is needed to help explain both the conformational changes and the different denaturation behaviour of the genetic variants.

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Organizational Affiliation: 

Leeds Centre for Molecular Recognition in Biological Systems, Department of Biochemistry and Molecular Biology, The University of Leeds, Leeds, LS2 9JT, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-LACTOGLOBULIN	A, B	162	Bos taurus	Mutation(s): 1  Gene Names: LGB
UniProt
Find proteins for P02754 (Bos taurus) Explore P02754  Go to UniProtKB:  P02754

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.243 
• R-Value Work: 0.181 
• R-Value Observed: 0.181 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 37.8	α = 123.4
b = 49.5	β = 97.3
c = 56.6	γ = 103.7

Software Package:

Software Name	Purpose
XDS	data scaling
ROTAVATA	data reduction
AGROVATA	data reduction
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
CCP4	data scaling
ROTAVATA)	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-12-20 
• Released Date: 1997-05-15 
Deposition Author(s): Brownlow, S., Morais-Cabral, J.H., Sawyer, L.

Revision History  

• Version 1.0: 1997-05-15
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance