PHOSPHOENZYMQMMM

"Phosphate Processing in Enzymes: Structure, Dynamics and Chemistry"

 Coordinatore KING'S COLLEGE LONDON 

 Organization address address: Strand
city: LONDON
postcode: WC2R 2LS

contact info
Titolo: Mr.
Nome: Paul
Cognome: Labbett
Email: send email
Telefono: 442078000000
Fax: 442078000000

 Nazionalità Coordinatore United Kingdom [UK]
 Totale costo 309˙235 €
 EC contributo 309˙235 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2013-IEF
 Funding Scheme MC-IEF
 Anno di inizio 2014
 Periodo (anno-mese-giorno) 2014-11-10   -   2016-11-09

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    KING'S COLLEGE LONDON

 Organization address address: Strand
city: LONDON
postcode: WC2R 2LS

contact info
Titolo: Mr.
Nome: Paul
Cognome: Labbett
Email: send email
Telefono: 442078000000
Fax: 442078000000

UK (LONDON) coordinator 309˙235.20

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

problem    replication    inhibitors    enzymes    hydrolysis    ubiquitous    rt    hiv    viral    ester    ntp    phosphate    cleavage    clarify    drugs    rnase    energy    drug    disease    reaction    flexibility    function   

 Obiettivo del progetto (Objective)

'Phosphate ester hydrolysis is one of the most important classes of chemical reactions in biology, playing a central role in nucleic acid processing, energy transduction, and signalling. Despite the importance of this ubiquitous reaction, the mechanistic details of phosphate ester cleavage remain obscure due to the complex nature of the reaction. In addition, there is an active debate concerning possible reaction intermediates. Here we aim to clarify the molecular basis of this enzymatic mechanism by studying P-O bond cleavage by Nucleoside Triphosphate (NTP) - processing enzymes and by the HIV-RT system. Hydrolysis of NTP represents a biochemical reaction essential in most processes of life: energy storage and transfer, replication of the genetic material, translation, regulation, etc. We will clarify the roles of metal ions in NTP enzymes and the ubiquitous arginine finger-type interaction occurring during the catalytic process. Phosphate hydrolysis is also catalysed by the HIV-RT enzyme. HIV-RT is a main drug target for AIDS disease. Unfortunately, current HIV drugs cannot cure the disease, forcing patients to remain on viral suppressant medications indefinitely. The major emerging problem with the current HIV viral drugs is the acquired drug resistance. To combat this problem, it is essential to design new drugs that target alternative functions and binding sites. More than half of the current HIV drugs target the HIV-RT reverse transcriptase function. Nevertheless, HIV-RT also carries out an RNase H function that is essential to viral replication. Here, we aim to obtain detailed information on the conformational flexibility and tautomerism of the inhibitors and to find the link between these properties and the potency and selectivity of the RNase function inhibitors. By exploring the flexibility of the inhibitors as well as mutations in the protein, we also aim to identify how drug resistant mutants may emerge as a result of drug therapies.'

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