Conformational Search on the Tripeptides Structure by Molecular Dynamics: Study of L,L-Gly-Phe-Phe, L,L-Phe-Gly-Phe, and L,L-Phe-Phe-Gly
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چکیده
منابع مشابه
Infinite pleated -sheet formed by the -hairpin Boc- -Phe- -Phe-D-Pro-Gly- -Phe- -Phe-OMe
A -hairpin conformation and extended -pleated sheet assembly have been characterized by single crystal x-ray diffraction for the synthetic peptide t-butoxycarbonyl— -Phe-Phe-D-Pro-GlyPhe-Phe-methyl ester [ -Phe: (S)3 homophenylalanine]. The centrally located D-Pro-Gly segment nucleates a chain reversal in a type II -turn conformation. Two intramolecular cross-strand hydrogen bonds stabilize the...
متن کاملNeuropeptides Gly-Asp-Pro-Phe-Leu-Arg-Phe-amide (GDPFLRFamide) and Ser-Asp-Pro-Phe-Leu-Arg-Phe-amide (SDPFLRFamide) Are Encoded by an Exon 3’ to Phe-Met-Arg-Phe- NH, (FMRFamide) in the Snail Lymnaea stagnalis
Biochemical analysis has shown the pond snail Lymnaea stagnalis to contain 2 main classes of Phe-Met-Arg-Phe-NH, (FMRFamide)-like neuropeptides: the tetrapeptides FMRFamide and Phe-Leu-Arg-Phe-NH, (FLRFamide), and the heptapeptides Gly-Asp-Pro-Phe-Leu-Arg-Phe-NH, (GDPFLRFamide) and Ser-Asp-Pro-Phe-Leu-Arg-Phe-NH, (SDPFFRFamide). By genomic mapping and DNA sequencing, we show here that the GDP/S...
متن کاملMechanisms of Arg-Pro-Pro-Gly-Phe inhibition of thrombin.
Investigations determined the mechanism(s) by which Arg-Pro-Pro-Gly-Phe (RPPGF) inhibits thrombin-induced platelet activation. High concentrations of RPPGF inhibit thrombin-induced coagulant activity. RPPGF binds to the active site of thrombin by forming a parallel beta-strand with Ser214-Gly216 and interacts with His57, Asp189, and Ser195 of the catalytic triad. RPPGF competitively inhibits al...
متن کاملH–d-Phe–d-Pro–Gly methyl ester hydrochloride monohydrate
The conformation of the title tripeptide methyl ester hydro-chloride monohydrate, 1-[2-(methoxycarbonylmethylaminocarbonyl)pyrrolidin-1-ylcarbonyl]-2-phenylethanaminium chloride monohydrate, C(17)H(24)N(3)O(4) (+)·Cl(-)·H(2)O, is extended, but the structure cannot be classified as any typical secondary structure. Interactions through water molecules and chloride ions were formed, in addition to...
متن کاملThe Phe-Phe Motif for Peptide Self-Assembly in Nanomedicine.
Since its discovery, the Phe-Phe motif has gained in popularity as a minimalist building block to drive the self-assembly of short peptides and their analogues into nanostructures and hydrogels. Molecules based on the Phe-Phe motif have found a range of applications in nanomedicine, from drug delivery and biomaterials to new therapeutic paradigms. Here we discuss the various production methods ...
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ژورنال
عنوان ژورنال: Drug Designing: Open Access
سال: 2013
ISSN: 2169-0138
DOI: 10.4172/2169-0138.1000106