3LU8

Human serum albumin in complex with compound 3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.245 
  • R-Value Observed: 0.246 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

A combined spectroscopic and crystallographic approach to probing drug-human serum albumin interactions

Buttar, D.Colclough, N.Gerhardt, S.Macfaul, P.A.Phillips, S.D.Plowright, A.Whittamore, P.Tam, K.Maskos, K.Steinbacher, S.Steuber, H.

(2010) Bioorg Med Chem 18: 7486-7496

  • DOI: https://doi.org/10.1016/j.bmc.2010.08.052
  • Primary Citation of Related Structures:  
    3LU6, 3LU7, 3LU8

  • PubMed Abstract: 
  • The displacement of probes that bind selectively to subdomains IIA or IIIA on human serum albumin (HSA) by competing compounds has been followed using fluorescence spectroscopy, and has therefore been used to assign a primary binding site for these compounds in the presence and absence of fatty acids ...

    The displacement of probes that bind selectively to subdomains IIA or IIIA on human serum albumin (HSA) by competing compounds has been followed using fluorescence spectroscopy, and has therefore been used to assign a primary binding site for these compounds in the presence and absence of fatty acids. The crystal structures have also been solved for three compounds: a matched pair of carboxylic acids whose binding strength to HSA unexpectedly decreased as the lipophilicity increased; and a highly bound sulphonamide that appeared not to displace the probes in the displacement assay. The crystallography results support the findings from the fluorescence displacement assay. The results indicate that drug binding to subdomain IB might also be important location for certain compounds.


    Organizational Affiliation

    AstraZeneca, Alderley Park, Macclesfield, Cheshire SK104TG, England, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serum albumin
A, B
585Homo sapiensMutation(s): 0 
Gene Names: ALBGIG20GIG42PRO0903PRO1708PRO2044PRO2619PRO2675UNQ696/PRO1341
UniProt & NIH Common Fund Data Resources
Find proteins for P02768 (Homo sapiens)
Explore P02768 
Go to UniProtKB:  P02768
PHAROS:  P02768
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02768
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IQX
Query on IQX

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
N-[5-(5-{[(2,4-dimethyl-1,3-thiazol-5-yl)sulfonyl]amino}-6-fluoropyridin-3-yl)-4-methyl-1,3-thiazol-2-yl]acetamide
C16 H16 F N5 O3 S3
IGQXOMRFMBZFBD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.245 
  • R-Value Observed: 0.246 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.779α = 75.42
b = 59.031β = 88.06
c = 96.177γ = 76.91
Software Package:
Software NamePurpose
MOSFLMdata reduction
MOLREPphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance