2PAB

STRUCTURE OF PREALBUMIN, SECONDARY, TERTIARY AND QUATERNARY INTERACTIONS DETERMINED BY FOURIER REFINEMENT AT 1.8 ANGSTROMS

• PDB DOI: https://doi.org/10.2210/pdb2PAB/pdb
• Entry: 2PAB supersedes: 1PAB

• Classification: TRANSPORT (THYROXINE,RETINOL) IN SERUM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1977-09-16 Released: 1977-10-24 
• Deposition Author(s): Oatley, S.J., Blake, C.C.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Work: 0.290 
• R-Value Observed: 0.290 

Literature

Structure of prealbumin: secondary, tertiary and quaternary interactions determined by Fourier refinement at 1.8 A.

Blake, C.C., Geisow, M.J., Oatley, S.J., Rerat, B., Rerat, C.

(1978) J Mol Biol 121: 339-356

• PubMed: 671542 
• DOI: https://doi.org/10.1016/0022-2836(78)90368-6
• Primary Citation of Related Structures:  
  2PAB

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 27.55 kDa 
• Atom Count: 1,744 
• Modelled Residue Count: 228 
• Deposited Residue Count: 254 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TRANSTHYRETIN PRECURSOR	A, B	127	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P02766 (Homo sapiens) Explore P02766  Go to UniProtKB:  P02766
PHAROS:  P02766 GTEx:  ENSG00000118271

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Work: 0.290 
• R-Value Observed: 0.290 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.49	α = 90
b = 85.68	β = 90
c = 65.99	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1977-10-24 
Deposition Author(s): Oatley, S.J., Blake, C.C.F.
• This entry supersedes: 1PAB

Revision History  

• Version 1.0: 1977-10-24
  Type: Initial release
  
• Version 1.1: 2008-03-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 2.0: 2023-09-27
  Type: Remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Other, Refinement description