Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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

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

Macromolecule Content

• Total Structure Weight: 69.71 kDa 
• Atom Count: 4822 
• Modelled Residue Count: 583 
• Deposited Residue Count: 584 
• Unique protein chains: 1

3V09

Crystal structure of Rabbit Serum Albumin

• DOI: 10.2210/pdb3V09/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Oryctolagus cuniculus
• Mutation(s): No 


• Deposited: 2011-12-07 Released: 2012-01-18 
• Deposition Author(s): Majorek, K.A., Porebski, P.J., Chruszcz, M., Almo, S.C., Minor, W., New York Structural Genomics Research Consortium (NYSGRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.27 Å
• R-Value Free: 0.243 
• R-Value Work: 0.193 
• R-Value Observed: 0.195 

Literature

Structural and immunologic characterization of bovine, horse, and rabbit serum albumins.

Majorek, K.A., Porebski, P.J., Dayal, A., Zimmerman, M.D., Jablonska, K., Stewart, A.J., Chruszcz, M., Minor, W.

(2012) Mol Immunol 52: 174-182

• PubMed: 22677715 
• DOI: 10.1016/j.molimm.2012.05.011
• Primary Citation of Related Structures:  
  3V08, 3V09, 3V03


• PubMed Abstract: 
  

Serum albumin (SA) is the most abundant plasma protein in mammals. SA is a multifunctional protein with extraordinary ligand binding capacity, making it a transporter molecule for a diverse range of metabolites, drugs, nutrients, metals and other molecules. Due to its ligand binding properties, albumins have wide clinical, pharmaceutical, and biochemical applications. Albumins are also allergenic, and exhibit a high degree of cross-reactivity due to significant sequence and structure similarity of SAs from different organisms. Here we present crystal structures of albumins from cattle (BSA), horse (ESA) and rabbit (RSA) sera. The structural data are correlated with the results of immunological studies of SAs. We also analyze the conservation or divergence of structures and sequences of SAs in the context of their potential allergenicity and cross-reactivity. In addition, we identified a previously uncharacterized ligand binding site in the structure of RSA, and calcium binding sites in the structure of BSA, which is the first serum albumin structure to contain metal ions.

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Organizational Affiliation: 

Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serum albumin	A	584	Oryctolagus cuniculus	Mutation(s): 0  Gene Names: ALB
Find proteins for P49065 (Oryctolagus cuniculus) Explore P49065  Go to UniProtKB:  P49065

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES	B [auth A], E [auth A]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
PG4	C [auth A], D [auth A], HA [auth A]	TETRAETHYLENE GLYCOL C8 H18 O5 UWHCKJMYHZGTIT-UHFFFAOYSA-N
EDO	BA [auth A], CA [auth A], DA [auth A], EA [auth A], FA [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
CL	GA [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
UNX	AA [auth A],  F [auth A],  G [auth A],  H [auth A],  I [auth A],  J [auth A],  K [auth A],  L [auth A],  M [auth A],  N [auth A],  O [auth A],  P [auth A],  Q [auth A],  R [auth A],  S [auth A],  T [auth A],  U [auth A],  V [auth A],  W [auth A],  X [auth A],  Y [auth A],  Z [auth A]	UNKNOWN ATOM OR ION X

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.27 Å
• R-Value Free: 0.243 
• R-Value Work: 0.193 
• R-Value Observed: 0.195 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data DOI: 10.18430/M3WS32 Protein Diffraction

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.463	α = 90
b = 81.884	β = 90
c = 104.851	γ = 90

Software Package:

Software Name	Purpose
BLU-MAX	data collection
HKL-3000	phasing
REFMAC	refinement
Coot	model building
HKL-3000	data reduction
HKL-3000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-12-07 
• Released Date: 2012-01-18 
Deposition Author(s): Majorek, K.A., Porebski, P.J., Chruszcz, M., Almo, S.C., Minor, W., New York Structural Genomics Research Consortium (NYSGRC)

Revision History  

• Version 1.0: 2012-01-18
  Type: Initial release
  
• Version 1.1: 2012-10-10
  Changes: Database references
• Version 2.0: 2018-01-10
  Changes: Advisory, Atomic model, Non-polymer description, Structure summary