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9 Sonuçlar
Shape and energetics of a cavity in c-Myb probed by natural and non-natural amino acid mutations.
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The shape and the energetics of a functional cavity in the R2 subdomain (90-141) of the c-Myb DNA-binding domain were investigated by spectroscopy and thermodynamic analysis. We focused on the valine 103 residue located in front of the cavity. Nine mutants, in which valine 103 was substituted with
High anticancer efficacy of L-proline-m-bis (2-chloroethyl) amino-L-phenylalanyl-L-norvaline ethyl ester hydrochloride (MF13) in vivo.
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The anticancer efficacy of the new anticancer tripeptide, L-proline-m-bis (2-chloroethyl) amino-L-phenylalanyl-L-norvaline ethyl ester hydrochloride (MF13), was investigated in mice. MF13 showed a therapeutic effect in liquid tumors and induced complete remission even in late stage malignancies.
Biochemical and structural characterization of a highly active branched-chain amino acid aminotransferase from Pseudomonas sp. for efficient biosynthesis of chiral amino acids.
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Aminotransferases (ATs) are important biocatalysts for the synthesis of chiral amines because of their capability of introducing amino group into ketones or keto acids as well as their high enantioselectivity, high regioselectivity. Among all ATs, branched-chain amino acid aminotransferase (BCAT)
An internally quenched peptide as a new model substrate for rhomboid intramembrane proteases.
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Rhomboids are ubiquitous intramembrane serine proteases that cleave transmembrane substrates. Their functions include growth factor signaling, mitochondrial homeostasis, and parasite invasion. A recent study revealed that the Escherichia coli rhomboid protease EcGlpG is essential for its
Attenuation of the editing activity of the Escherichia coli leucyl-tRNA synthetase allows incorporation of novel amino acids into proteins in vivo.
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The fidelity of translation is dependent on the specificity of the aminoacyl-tRNA synthetases (aaRSs). The aaRSs that activate the hydrophobic amino acids leucine, isoleucine, and valine employ a proofreading mechanism that hydrolyzes noncognate aminoacyl adenylates and misaminoacylated tRNAs.
The role of water molecules in the structure-based design of (5-hydroxynorvaline)-2-cyclosporin: synthesis, biological activity, and crystallographic analysis with cyclophilin A.
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Analysis of the contact surface of the cyclophilin A (CypA)/cyclosporin A (CsA, 1) crystal structure delineates a unique cavity between both molecules in the vicinity of the Abu-2 side chain atoms of 1 (Abu pocket). Therefore, (5-hydroxynorvaline)-2-cyclosporin (2) was designed and prepared as a CsA
Synthetic, structural and biological studies of the ubiquitin system: synthesis and crystal structure of an analogue containing unnatural amino acids.
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Ubiquitin is a 76-amino acid protein involved in the targeting for destruction of proteins in the cell. The protein can readily be synthesized chemically affording an extra dimension to studies of protein stability. Ubiquitin with various modifications to the hydrophobic core has been synthesized.
Characterization of solute binding at human serum albumin site II and its geometry using a biochromatographic approach.
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Chiral recognition mechanism relationships for binding at site II on human serum albumin (HSA) were investigated using D, L dansyl amino acids. Sodium phosphate salt was used as a solute-HSA interaction modifier. A new model was developed using a biochromatographic approach to describe the variation
Probing protein stability with unnatural amino acids.
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Unnatural amino acid mutagenesis, in combination with molecular modeling and simulation techniques, was used to probe the effect of side chain structure on protein stability. Specific replacements at position 133 in T4 lysozyme included (i) leucine (wt), norvaline, ethylglycine, and alanine to
Bilim tarafından desteklenen en eksiksiz şifalı otlar veritabanı
- 55 dilde çalışır
- Bilim destekli bitkisel kürler
- Görüntüye göre bitki tanıma
- Etkileşimli GPS haritası - bölgedeki bitkileri etiketleyin (yakında)
- Aramanızla ilgili bilimsel yayınları okuyun
- Şifalı bitkileri etkilerine göre arayın
- İlgi alanlarınızı düzenleyin ve haber araştırmaları, klinik denemeler ve patentlerle güncel kalın
Bir belirti veya hastalık yazın ve yardımcı olabilecek bitkiler hakkında bilgi edinin, bir bitki yazın ve karşı kullanıldığı hastalıkları ve semptomları görün.
* Tüm bilgiler yayınlanmış bilimsel araştırmalara dayanmaktadır
