1CJ5 | pdb_00001cj5

BOVINE BETA-LACTOGLOBULIN A

• PDB DOI: https://doi.org/10.2210/pdb1CJ5/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Bos taurus
• Expression System: Komagataella pastoris
• Mutation(s): No 


• Deposited: 1999-04-22 Released: 2000-04-26 
• Deposition Author(s): Kuwata, K., Hoshino, M., Forge, V., Era, S., Batt, C.A., Goto, Y.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: LEAST RESTRAINTS VIOLATION 

Literature

Solution structure and dynamics of bovine beta-lactoglobulin A.

Kuwata, K., Hoshino, M., Forge, V., Era, S., Batt, C.A., Goto, Y.

(1999) Protein Sci 8: 2541-2545

• PubMed: 10595563 
• DOI: https://doi.org/10.1110/ps.8.11.2541
• Primary Citation Related Structures: 
  1CJ5


• PubMed Abstract: 
  

  Using heteronuclear NMR spectroscopy, we studied the solution structure and dynamics of bovine beta-lactoglobulin A at pH 2.0 and 45 degrees C, where the protein exists as a monomeric native state. The monomeric NMR structure, comprising an eight-stranded continuous antiparallel beta-barrel and one major alpha-helix, is similar to the X-ray dimeric structure obtained at pH 6.2, including betaI-strand that forms the dimer interface and loop EF that serves as a lid of the interior hydrophobic hole. [1H]-15N NOE revealed that betaF, betaG, and betaH strands buried under the major alpha-helix are rigid on a pico- to nanosecond time scale and also emphasized rapid fluctuations of loops and the N- and C-terminal regions.

---

Organizational Affiliation: 
• Department of Physiology, School of Medicine, Gifu University, Tsukasamachi, Japan.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 18.4 kDa 
• Atom Count: 1,285 
• Modeled Residue Count: 162 
• Deposited Residue Count: 162 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-LACTOGLOBULIN A	A	162	Bos taurus	Mutation(s): 0  Gene Names: BLG CDNA
UniProt
Find proteins for P02754 (Bos taurus) Explore P02754  Go to UniProtKB:  P02754

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: LEAST RESTRAINTS VIOLATION 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-04-26 
Deposition Author(s): Kuwata, K., Hoshino, M., Forge, V., Era, S., Batt, C.A., Goto, Y.

Revision History  

• Version 1.0: 2000-04-26
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-16
  Changes: Database references, Derived calculations
• Version 1.4: 2023-12-27
  Changes: Data collection
• Version 1.5: 2024-11-20
  Changes: Structure summary