Binary (nucleotide-protein dimer and hexamer complexes) and ternary (nucleotide-protein-inhibitor complexes) p97 complexes were subjected to molecular dynamics simulations in an attempt to further our understanding of the p97 protein oligomer domain stability and, more importantly, of the recently reported diverse molecular mechanisms of inhibition including allosteric, ATP-competitive and covalent inhibitors. Analysis of stable states following equilibration phases indicated a higher intrinsic stability of the homohexamer as opposed to the dimer, and of N-D1 domains as opposed to the D2 domain. The molecular dynamics of the proposed allosteric binding model reproduced important molecular interactions identified experimentally with high frequency throughout the trajectory. Observed conformational changes occurring in the D2 nucleotide binding site provided a novel bind-rearrange-react hypothesis of stepwise molecular events involved in the specific covalent inhibitor mode of action

Molecular dynamics simulations of p97 including covalent, allosteric and ATP-competitive inhibitors / S. Rendine, C. Orrenius, F. Dapiaggi, S. Pieraccini, I. Motto, R. D'ALESSIO, P. Magnaghi, A. Isacchi, E. Felder, M. Sironi. - In: ACTA CHIMICA SLOVENICA. - ISSN 1318-0207. - 66:2(2019), pp. 395-401. [10.17344/acsi.2019.4880]

Molecular dynamics simulations of p97 including covalent, allosteric and ATP-competitive inhibitors

S. Rendine;F. Dapiaggi;S. Pieraccini;I. Motto;R. D'ALESSIO;M. Sironi
Ultimo
2019

Abstract

Binary (nucleotide-protein dimer and hexamer complexes) and ternary (nucleotide-protein-inhibitor complexes) p97 complexes were subjected to molecular dynamics simulations in an attempt to further our understanding of the p97 protein oligomer domain stability and, more importantly, of the recently reported diverse molecular mechanisms of inhibition including allosteric, ATP-competitive and covalent inhibitors. Analysis of stable states following equilibration phases indicated a higher intrinsic stability of the homohexamer as opposed to the dimer, and of N-D1 domains as opposed to the D2 domain. The molecular dynamics of the proposed allosteric binding model reproduced important molecular interactions identified experimentally with high frequency throughout the trajectory. Observed conformational changes occurring in the D2 nucleotide binding site provided a novel bind-rearrange-react hypothesis of stepwise molecular events involved in the specific covalent inhibitor mode of action
Settore CHIM/02 - Chimica Fisica
2019
Article (author)
File in questo prodotto:
File Dimensione Formato  
4880-35629-1-PB.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 441.58 kB
Formato Adobe PDF
441.58 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/665307
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 2
social impact