Results 171 to 180 of about 1,561,917 (189)
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Motion of Spin-Labeled Side Chains in T4 Lysozyme: Effect of Side Chain Structure
Biochemistry, 1999Previous studies have shown that the mobility of nitroxide side chains in a protein, inferred from the electron paramagnetic resonance (EPR) spectra, can be used to classify particular sites as helix surface sites, tertiary contact sites, buried sites, or loop sites.
Wayne L. Hubbell +3 more
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Journal of Molecular Recognition, 1993
AbstractA complete series of configurationally isomers (L‐L, L‐D, D‐L AND D‐D) of a dipeptide Leu‐Phe benzyl ester have been synthesized and assayed for chymotrypsin. In the conformational analysis by 400 MMz 1H NMR, the L‐D and D‐L isomers, but not hte L‐L and D‐D isomers, showed fairly large up field shifts (0.2–0.4 ppm) of Leu‐βCH2 and γCH proton ...
Iori Maeda +8 more
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AbstractA complete series of configurationally isomers (L‐L, L‐D, D‐L AND D‐D) of a dipeptide Leu‐Phe benzyl ester have been synthesized and assayed for chymotrypsin. In the conformational analysis by 400 MMz 1H NMR, the L‐D and D‐L isomers, but not hte L‐L and D‐D isomers, showed fairly large up field shifts (0.2–0.4 ppm) of Leu‐βCH2 and γCH proton ...
Iori Maeda +8 more
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Activity profiles of novel side-chain to side-chain cyclized opioid peptide analogs
Neuropeptides, 1984A new family of opioid peptide analogs cyclized through amide bond formation between side-chain amino and carboxyl groups was tested in mu- and delta-opioid receptor selective bio- and binding assays. Within the series of compounds investigated considerable variation in potency and receptor selectivity was observed as a consequence of the introduced ...
Thi M.-D. Nguyen, Peter W. Schiller
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Environment of tryptophan side chains in proteins
Proteins: Structure, Function, and Genetics, 2000Although relatively rare, the tryptophan residue (Trp), with its large hydrophobic surface, has a unique role in the folded structure and the binding site of many proteins, and its fluorescence properties make it very useful in studying the structures and dynamics of protein molecules in solution.
Pinak Chakrabarti +2 more
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Synthesis of side‐chain to side‐chain cyclized peptide analogs on solid supports
International Journal of Peptide and Protein Research, 1985Cyclic peptide structures of the type ‐Lys‐R1—Rn‐Glu‐ can be synthesized on the Merrifield resin by assembling the peptide chain using Nα‐Fmoc‐amino acids and Boc and tert.‐butyl protection for the side‐chains of Lys and Glu, respectively. If residues R1 to Rn contain side‐chain functional groups, TFA‐resistant protection is required.
Jack M. Miller +2 more
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ChemInform Abstract: Biocatalysis in the Preparation of the Statin Side Chain
ChemInform, 2009AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Annukka Kallinen +2 more
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ChemInform Abstract: Side‐Chain Chlorination of Methylquinolines.
ChemInform, 1991AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
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Side-chain specificity of pepsin
Biochemistry, 1969Gordon E. Trout, Joseph S. Fruton
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