5GON

Structures of a beta-lactam bridged analogue in complex with tubulin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.48 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Potent Antitumor Activities and Structure Basis of the Chiral beta-Lactam Bridged Analogue of Combretastatin A-4 Binding to Tubulin.

Zhou, P.Liu, Y.Zhou, L.Zhu, K.Feng, K.Zhang, H.Liang, Y.Jiang, H.Luo, C.Liu, M.Wang, Y.

(2016) J. Med. Chem. 59: 10329-10334

  • DOI: 10.1021/acs.jmedchem.6b01268

  • PubMed Abstract: 
  • A series of chiral β-lactam bridged analogues (3-substituted 1,4-diaryl-2-azetidinones) of combretastatin A-4 (CA-4) were synthesized asymmetrically, and their antitumor activities were evaluated in vitro and in vivo. The cocrystal structure of tubul ...

    A series of chiral β-lactam bridged analogues (3-substituted 1,4-diaryl-2-azetidinones) of combretastatin A-4 (CA-4) were synthesized asymmetrically, and their antitumor activities were evaluated in vitro and in vivo. The cocrystal structure of tubulin in complex with compound 9 was determined by X-ray crystallography, which showed that 9 binds to the same site as colchicine with similar binding mode, and the absolute configuration of its C-4 was first identified and demonstrated to be critically important for their antiproliferative activities.


    Organizational Affiliation

    School of Pharmacy, Fudan University , Shanghai 201203, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tubulin alpha-1B chain
A, C
440Bos taurusMutation(s): 0 
Find proteins for P81947 (Bos taurus)
Go to UniProtKB:  P81947
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tubulin beta-2B chain
B, D
431Bos taurusMutation(s): 0 
Gene Names: TUBB2B
Find proteins for Q6B856 (Bos taurus)
Go to Gene View: TUBB2B
Go to UniProtKB:  Q6B856
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Stathmin-4
E
136Rattus norvegicusMutation(s): 0 
Gene Names: Stmn4
Find proteins for P63043 (Rattus norvegicus)
Go to UniProtKB:  P63043
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Uncharacterized protein
F
378Gallus gallusMutation(s): 0 
Gene Names: TTL
Find proteins for E1BQ43 (Gallus gallus)
Go to Gene View: TTL
Go to UniProtKB:  E1BQ43
Small Molecules
Ligands 8 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GDP
Query on GDP

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B, D
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
 Ligand Interaction
GTP
Query on GTP

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Download CCD File 
A, C
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
 Ligand Interaction
GOL
Query on GOL

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A, B, C, D
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

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A, B, C
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
6ZR
Query on 6ZR

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B
(3R,4R)-4-(4-methoxy-3-oxidanyl-phenyl)-3-methyl-1-(3,4,5-trimethoxyphenyl)azetidin-2-one
C20 H23 N O6
KLFAJLHIJQPMNJ-ADLMAVQZSA-N
 Ligand Interaction
MG
Query on MG

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A, B, C, D, F
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
IMD
Query on IMD

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C
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
MES
Query on MES

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B
2-(N-MORPHOLINO)-ETHANESULFONIC ACID
C6 H13 N O4 S
SXGZJKUKBWWHRA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.48 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 104.507α = 90.00
b = 156.463β = 90.00
c = 181.838γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
REFMACrefinement
HKL-3000data collection
HKL-3000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-22
    Type: Initial release