Results 21 to 30 of about 14,708 (190)

Rugged Metropolis Sampling with Simultaneous Updating of Two Dynamical Variables [PDF]

open access: yes, 2005
The Rugged Metropolis (RM) algorithm is a biased updating scheme, which aims at directly hitting the most likely configurations in a rugged free energy landscape. Details of the one-variable (RM$_1$) implementation of this algorithm are presented.
B. A. Berg   +7 more
core   +1 more source

Influence of Mutations of Conserved Arginines on Neuropeptide Binding in the DPP III Active Site

open access: yesMolecules, 2023
Dipeptidyl peptidase III (DPP III), a zinc exopeptidase, is involved in the final steps of intercellular protein degradation and has a marked affinity for opioid peptides such as enkephalins and endomorphins.
Antonija Tomić   +2 more
doaj   +1 more source

Biased Metropolis Sampling for Rugged Free Energy Landscapes [PDF]

open access: yes, 2003
Metropolis simulations of all-atom models of peptides (i.e. small proteins) are considered. Inspired by the funnel picture of Bryngelson and Wolyness, a transformation of the updating probabilities of the dihedral angles is defined, which uses ...
Berg, Bernd A.
core   +3 more sources

Cytogenetic effects of combination of tridecactide and met-enkephalin on lymphocytes of patients with multiple sclerosis

open access: yesJournal of Health Sciences, 2015
Introduction: The met-enkephalin (1-5 Adrenorphin) and tridecactide (alpha-corticotropin 1-13) combination is used in the multiple sclerosis (MS) immuno-modulatory treatment.
Maida Rakanovic-Todic   +5 more
doaj   +1 more source

High resolution NMR study of T1 magnetic relaxation dispersion. IV. Proton relaxation in amino acids and Met-enkephalin pentapeptide [PDF]

open access: yes, 2014
Nuclear Magnetic Relaxation Dispersion (NMRD) of protons was studied in the pentapeptide Met-enkephalin and the amino acids, which constitute it. Experiments were run by using high-resolution Nuclear Magnetic Resonance (NMR) in combination with fast ...
Ivanov, Konstantin L.   +3 more
core   +1 more source

Met-enkephalin modulates the stress responses of plasma concentrations of corticosterone, delta opioid receptor binding, pro-enkephalin expression, and processing in chickens

open access: yesFrontiers in Physiology
IntroductionMet-enkephalin is a neuropeptide whose release into the circulation is enhanced by stress. There have been no studies on the effects of peripherally administered Met-enkephalin in chickens.MethodsThe effects of peripheral administration of ...
Krystyna Pierzchała-Koziec   +2 more
doaj   +1 more source

Human hepatic met-enkephalin and delta opioid receptor-1 immunoreactivities in viral and autoimmune hepatitis

open access: yesAnnals of Hepatology, 2008
Endogenous opioids participate in growth regulation. Liver regeneration relates to growth. Thus, we explored the expression of methionine enkephalin and of the delta opioid receptor 1 immunoreactivities with a polyclonal rabbit antibody in deparaffinized
Vijaya D. Boyella   +2 more
doaj   +1 more source

Effective Sampling in the Configurational Space by the Multicanonical-Multioverlap Algorithm

open access: yes, 2006
We propose a new generalized-ensemble algorithm, which we refer to as the multicanonical-multioverlap algorithm. By utilizing a non-Boltzmann weight factor, this method realizes a random walk in the multi-dimensional, energy-overlap space and explores ...
B. A. Berg   +5 more
core   +1 more source

Perspectives on Endogenous Opioids in Birds

open access: yesFrontiers in Physiology, 2018
The present review summarizes the state of knowledge of endogenous opioids in birds. Endogenous opioid peptides acts in a neuromodulatory, hormonal and paracrine manner to mediate analgesic and other physiological functions.
Colin G. Scanes   +1 more
doaj   +1 more source

Nuclear‐Magnetic‐Resonance Study on Met‐enkephalin and Met‐enkephalin [PDF]

open access: yesEuropean Journal of Biochemistry, 1979
The 270‐MHz 1H and 68‐MHz 13C nuclear magnetic resonance spectra of Met‐enkephalin (Tyr‐Gly‐Gly‐Phe‐Met) and Met‐enkephalinamide are analyzed in a variety of solvents. For the dipolar form of Met‐enkephalin in (C2H3)2SO solution, significant concentration dependences are found of C‐α proton chemical shifts, indicating an aromatic ring‐current effect in
T, Higashijima   +3 more
openaire   +2 more sources

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