Results 21 to 30 of about 110,810 (218)

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

Killing effect of methionine enkephalin on melanoma in vivo and in vitro

open access: yesOncology Report, 2017
Melanoma is a common cutaneous malignancy, that is also found in specific mucosal sites, and is associated with a poor prognosis. The aim of the present study was to investigate the cytotoxicity of methionine enkephalin (MENK) for B16 melanoma cells in ...
Dong-mei Wang   +6 more
semanticscholar   +1 more source

Hyperpolarization Modulation of the T‐Type hCav3.2 Channel by Human Synenkephalin [1–53], a Shrew Neurotoxin Analogue without Paralytic Effects

open access: yesAngewandte Chemie, Volume 137, Issue 27, July 1, 2025.
Human synenkephalin [1–53] (hSYN), an analogue peptide of shrew saliva neurotoxins, was synthesized and its structural characteristics studied. Synthetic hSYN potently activated the T‐type voltage‐gated Ca channel hCav3.2 but did not paralyze mealworms. These findings offer new insight into neurological disorder treatment and evolutionary mechanisms of
Ryo Fukuoka   +5 more
wiley   +2 more sources

Targeted Cell Reprogramming Produces Analgesic Chromaffin-Like Cells from Human Mesenchymal Stem Cells

open access: yesCell Transplantation, 2013
Transplantation of allogeneic adrenal chromaffin cells demonstrated the promise of favorable outcomes for pain relief in patients. However, there is a very limited availability of suitable human adrenal gland tissues, genetically well-matched donors in ...
T. Qu M.D., Ph.D.   +5 more
doaj   +1 more source

Genetically Engineered Human Mesenchymal Stem Cells Produce Met-Enkephalin at Augmented Higher Levels in Vitro

open access: yesCell Transplantation, 2006
We have reported that transplantation of adrenal medullary chromaffin cells that release endogenous opioid peptides into pain modulatory regions in the CNS produce significant antinociceptive effects in patients with terminal cancer pain.
Ikuko Sugaya   +3 more
doaj   +1 more source

Met-enkephalin-induced mobilization of intracellular Ca2+ in rat intracardiac ganglion neurones [PDF]

open access: yes, 1999
The effects of Met-enkephalin on Ca2+-dependent K+ channel activity were investigated using the cell-attached patch recording technique on isolated parasympathetic neurones of rat intracardiac ganglia. Large-conductance, Ca2+-dependent K+ channels (BKCa)
Adams   +18 more
core   +1 more source

Biomimetic Chemistry on Tandem Protein/Lipid Damages under Reductive Radical Stress

open access: yesCHIMIA, 2008
The study of radical stress in the biological environment needs a comprehensive vision of all possible reactive species and their mechanisms. Among them, reductive stress is evaluated for its selective target of sulfur-containing compounds.
Sílvia Atrian   +8 more
doaj   +1 more source

Inhibition of the growth of human melanoma cells by methionine enkephalin

open access: yesMolecular Medicine Reports, 2016
Melanoma is an aggressive cancer, the incidence of which is increasing worldwide. Limited therapies are currently available, particularly following metastasis. The aim of the present study was to investigate the inhibiting effect of methionine enkephalin
Dong-mei Wang   +8 more
semanticscholar   +1 more source

Opioid precursor protein isoform is targeted to the cell nuclei in the human brain [PDF]

open access: yes, 2017
Background: Neuropeptide precursors are traditionally viewed as proteins giving rise to small neuropeptide molecules. Prodynorphin (PDYN) is the precursor protein to dynorphins, endogenous ligands for the kappa-opioid receptor.
Alkass, Kanar   +15 more
core   +1 more source

Three-dimensional structure of monoanionic methionine-enkephalin: X-ray structure of tert-butyloxycarbonyl-Tyr-Gly-Gly-(4-bromo)Phe-Met-OH [PDF]

open access: yes, 1984
The conformation of tert-butyloxycarbonyl-Tyr-Gly-Gly-(4-bromo)Phe-Met-OH, as a monoanionic derivative of Met-enkephalin, was elucidated by X-ray crystal analysis. The molecule took an extended conformation which was bended at the Phe residue.
Doi, Mitsunobu   +6 more
core   +1 more source

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