4J2V

Crystal Structure of Equine Serum Albumin in complex with 3,5-diiodosalicylic acid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.12 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystallographic studies of the complexes of bovine and equine serum albumin with 3,5-diiodosalicylic acid.

Sekula, B.Zielinski, K.Bujacz, A.

(2013) Int.J.Biol.Macromol. 60C: 316-324

  • DOI: 10.1016/j.ijbiomac.2013.06.004
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Due to their extraordinary binding properties, serum albumins are the main transporters of many small molecules in the circulatory system. Although all mammalian serum albumins exhibit quite high sequence similarity, their binding abilities are not t ...

    Due to their extraordinary binding properties, serum albumins are the main transporters of many small molecules in the circulatory system. Although all mammalian serum albumins exhibit quite high sequence similarity, their binding abilities are not the same. Until now, only human serum albumin (HSA) was subjected to extensive structural studies in complexes with various ligands. Here we present two crystal structures of the complexes of equine and bovine serum albumins with 3,5-diiodosalicylic acid (DIS), at resolutions 2.12 Å and 2.65 Å, respectively, and analyze interactions of the DIS ligand with both macromolecules. We highlight the differences in distribution of DIS binding sites between the bovine and equine serum albumins and compare results with the HSA binding ability of DIS and other structurally similar ligands.


    Organizational Affiliation

    Institute of Technical Biochemistry, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serum albumin
A
583Equus caballusMutation(s): 0 
Gene Names: ALB
Find proteins for P35747 (Equus caballus)
Go to Gene View: ALB
Go to UniProtKB:  P35747
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DIU
Query on DIU

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A
2-HYDROXY-3,5-DIIODO-BENZOIC ACID
2-HYDROXY-3,5-DIIODOBENZOIC ACID
C7 H4 I2 O3
DHZVWQPHNWDCFS-UHFFFAOYSA-N
 Ligand Interaction
FMT
Query on FMT

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Download CCD File 
A
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
MLI
Query on MLI

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Download CCD File 
A
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.12 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.181 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 88.880α = 90.00
b = 88.880β = 90.00
c = 134.340γ = 120.00
Software Package:
Software NamePurpose
REFMACphasing
XDSdata scaling
PHENIXrefinement
REFMACrefinement
XDSdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-24
    Type: Initial release