5OB8

X-ray structure of the adduct formed upon reaction of lysozyme with the compound fac-[RuII(CO)3Cl2(N3-MIM), MIM=methyl-imidazole (crystals grown using NaCl)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.160 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Ru-Based CO releasing molecules with azole ligands: interaction with proteins and the CO release mechanism disclosed by X-ray crystallography.

Pontillo, N.Ferraro, G.Messori, L.Tamasi, G.Merlino, A.

(2017) Dalton Trans 46: 9621-9629

  • DOI: 10.1039/c7dt01991b
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • fac-[RuII(CO)3Cl2(N3-Imidazole)] (RuIIIM), fac-[RuII(CO)3Cl2(N3-methyl-imidazole)] (RuIIMIM) and fac-[RuII(CO)3Cl2(N3-methyl-benzimidazole)] (RuIIMBI) are three ruthenium based CO releasing molecules (Ru-CORMs) that are cytotoxic towards ovarian and ...

    fac-[RuII(CO)3Cl2(N3-Imidazole)] (RuIIIM), fac-[RuII(CO)3Cl2(N3-methyl-imidazole)] (RuIIMIM) and fac-[RuII(CO)3Cl2(N3-methyl-benzimidazole)] (RuIIMBI) are three ruthenium based CO releasing molecules (Ru-CORMs) that are cytotoxic towards ovarian and colon carcinoma cell lines. Detailed structural information on the adducts formed upon reaction of RuIIIM and RuIIMIM with hen egg white lysozyme and of the three Ru-CORMs with bovine pancreatic ribonuclease is provided here by X-ray crystallography. Comparative analysis of seven crystal structures of these adducts allows one to delineate some general trends in the reactivity of these Ru-CORMs with proteins. Indeed, in all cases Ru-CORMs bind these model systems upon detachment of the azole ligand and concomitant coordination to a protein His or Asp residue. Apparently the three Ru-CORMs progressively dissociate losing azoles, chlorides, and one or two CO molecules. Data were compared with those reported in the literature for adducts of the same proteins with other Ru-CORMs and with in-solution data previously obtained on the same systems. These results are potentially useful for a better understanding of the chemistry, potential toxicity and mechanism of actions of these interesting Ru-CORMs and are helpful in defining the molecular mechanisms of CO release.


    Organizational Affiliation

    Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant' Angelo, Via Cinthia, I-80126, Napoli, Italy. antonello.merlino@unina.it.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Lysozyme C
A
129Gallus gallusGene Names: LYZ
EC: 3.2.1.17
Find proteins for P00698 (Gallus gallus)
Go to Gene View: LYZ
Go to UniProtKB:  P00698
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

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A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
RU2
Query on RU2

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Download CCD File 
A
pentakis(oxidaniumyl)-(oxidaniumylidynemethyl)ruthenium
C H10 O6 Ru
XGGVDGPXQXWURT-UHFFFAOYSA-N
 Ligand Interaction
9QB
Query on 9QB

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Download CCD File 
A
chloranyl-bis(oxidaniumyl)-tris(oxidaniumylidynemethyl)ruthenium
C3 H4 Cl O5 Ru
DTTSLSCOLQLXGC-UHFFFAOYSA-M
 Ligand Interaction
ACT
Query on ACT

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A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.160 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 78.573α = 90.00
b = 78.573β = 90.00
c = 36.664γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
REFMACrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-07-26
    Type: Initial release
  • Version 1.1: 2017-08-02
    Type: Database references