2015
Evaluation of Selected Classical Force Fields for Alchemical Binding Free Energy Calculations of Protein-Carbohydrate Complexes
MISHRA, Sushil Kumar; Gaetano CALABRO; Hannes H. LOEFFLER; Julien MICHEL; Jaroslav KOČA et al.Základní údaje
Originální název
Evaluation of Selected Classical Force Fields for Alchemical Binding Free Energy Calculations of Protein-Carbohydrate Complexes
Název česky
Evaluation of Selected Classical Force Fields for Alchemical Binding Free Energy Calculations of Protein-Carbohydrate Complexes
Autoři
MISHRA, Sushil Kumar; Gaetano CALABRO; Hannes H. LOEFFLER; Julien MICHEL a Jaroslav KOČA
Vydání
Journal of Chemical Theory and Computation, Washington D.C. American Chemical Society, 2015, 1549-9618
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10403 Physical chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.301
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/15:00081013
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
MOLECULAR-DYNAMICS SIMULATIONS; THERMODYNAMIC INTEGRATION; DRUG DESIGN; RALSTONIA-SOLANACEARUM; EFFICIENT GENERATION; CONCANAVALIN-A; AM1-BCC MODEL; SUGAR BINDING; LECTIN; AFFINITIES
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 30. 3. 2016 16:36, Mgr. Eva Špillingová
Anotace
V originále
Protein carbohydrate recognition is crucial in many vital biological processes including host-pathogen recognition, cell-signaling, and catalysis. Accordingly, computational prediction of protein-carbohydrate binding free energies is of enormous interest for drug design. However, the accuracy of current force fields (FFs) for predicting binding free energies of protein-carbohydrate complexes is not well understood owing to technical challenges such as the highly polar nature of the complexes, anomerization, and conformational flexibility of carbohydrates. The present study evaluated the performance of alchemical predictions of binding free energies with the GAFF1.7/AM1-BCC and GLYCAMO6j force fields for modeling protein carbohydrate complexes. Mean unsigned errors of 1.1 +/- 0.06 (GLYCAMO6j) and 2.6 +/- 0.08 (GAFF1.7/AM1-BCC) kcal.mol(-1) are achieved for a large data set of monosaccharide ligands for Ralstonia solanacearum lectin (RSL). The level of accuracy provided by GLYCAMO6j is sufficient to discriminate potent, moderate, and weak binders, a goal that has been difficult to achieve through other scoring approaches. Accordingly, the protocols presented here could find useful applications in carbohydrate-based drug and vaccine developments.
Návaznosti
| ED1.1.00/02.0068, projekt VaV |
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| EE2.3.30.0009, projekt VaV |
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| GA13-25401S, projekt VaV |
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