Comparing Solvent Models for Molecular Dynamics of Protein

نویسندگان

  • Sikandar Y. Mashayak
  • David E. Tanner
چکیده

Discrete nature of water plays critical role in protein folding and thermodynamics. Explicit all-atom modeling of solvent severely limits the length and time scales of molecular dynamics simulations of protein. In this project, we evaluated accuracy and computational efficiency of four different solvent models, all-atom solvent models ( SPC/E and TIP3P ), Generalized Born Implicit Solvent, and CoarseGrained solvent model. CG force-field, for solvent interactions, is determined using Force-matching with exclusion technique. Explicit and implicit solvent simulations are compared with vacuum to study the effects of solvent on protein structure.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Introducing critical residues in the human prion protein and its Asp 178 Asn mutant by molecular dynamics simulation

The molecular dynamics (MD) simulation method is used to assess structural details for humanprion protein (hereafter PrPN) and its Asp178 Asn mutant (hereafter PrPm) which causes fatalfamilial insomnia disease. The results reveal that the flexibility and instability increase in PrPmcould be related to specific amino acids exposed to the solvent. Solvation free energy of PrPm is 20kjmot1nni2 mor...

متن کامل

Designing a new tetrapeptide to inhibit the BIR3 domain of the XIAP protein via molecular dynamics simulations

The XIAP protein is a member of apoptosis proteins family. The XIAP protein plays a central role in the inhibition of apoptosis and consists of three Baculoviral IAP Repeat domains. The BIR3 domain binds directly to the N-terminal of caspase-9 and therefore it inhibits apoptosis. N-terminal tetrapeptide region of SMAC protein can bind to BIR3, inhibit it and subsequently induce apoptosis. In th...

متن کامل

Energy study at different solvents for potassium Channel Protein by Monte Carlo, Molecular and Langevin Dynamics Simulations

Potassium Channels allow potassium flux and are essential for the generation of electric current acrossexcitable membranes. Potassium Channels are also the targets of various intracellular controlmechanisms; such that the suboptimal regulation of channel function might be related to pathologicalconditions. Realistic studies of ion current in biologic channels present a major challenge for compu...

متن کامل

Gyration Radius and Energy Study at Different Temperatures for Acetylcholine Receptor Protein in Gas Phase by Monte Carlo, Molecular and Langevin Dynamics Simulations

The determination of gyration radius is a strong research for configuration of a Macromolecule. Italso reflects molecular compactness shape. In this work, to characterize the behavior of theprotein, we observe quantities such as the radius of gyration and the average energy. We studiedthe changes of these factors as a function of temperature for Acetylcholine receptor protein in gasphase with n...

متن کامل

Investigation of Monte Carlo, Molecular Dynamic and Langevin dynamic simulation methods for Albumin- Methanol system and Albumin-Water system

Serum Albumin is the most aboundant protein in blood plasma. Its two major roles aremaintaining osmotic pressure and depositing and transporting compounds. In this paper,Albumin-methanol solution simulation is carried out by three techniques including MonteCarlo (MC), Molecular Dynamic (MD) and Langevin Dynamic (LD) simulations. Byinvestigating energy changes by time and temperature (between 27...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011