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The interaction of the multiple antigenic peptide MAP4VP3 with lipid membranes has been studied by spectroscopic techniques. MAP4VP3 is a multimeric peptide that corresponds to four units of the sequence 110–121 of the capsid protein VP3 of hepatitis A virus. In order to evaluate the...
The chemical synthesis and x‐ray crystal structure analysis of a model peptide incorporating a conformationally adaptable unsubstituted β‐Ala residue: Boc–β‐Ala–Acc6–OCH3 (C16H28N2O5, molecular weight = 328.41; 1) has been described. The peptide crystallized in the space group...
In a continuation of our research efforts on the design and synthesis of novel peptidomimetic structures, we have synthesized a series of sandostatin amide analogs in which stereoisomers of threonine and β‐hydroxyvaline(β‐Hyv) are employed. The analogs...
We report the conformational analysis by 1H nmr in DMSO and computer simulations involving distance geometry and molecular dynamics simulations of analogs of the cyclic octapeptide D‐Phe1‐c(Cys2‐Phe3‐D‐Trp4‐Lys5‐Thr6‐Cys7)‐Thr8‐ol (sandostatin®, octreotide). The analogs...
Recent data concerning the thermostability and the primary structure of type IV collagens, some invertebrate collagens, and for the stability of synthetic collagen‐like polypeptides, show that our earlier analysis of the phylogenetic change of thermostability has some shortcomings. The results...
A new synthetic route to (E)‐β‐phenyl‐α,β‐dehydroalanine (ΔEPhe)‐containing peptide was presented via photochemical isomerization of the corresponding (Z)‐β‐phenyl‐α,β‐dehydroalanine (ΔZPhe)‐containing peptide. By applying this method to Boc–Ala–ΔZPhe–Val–OMe...
Water proton transverse relaxation times (T2) and self‐diffusion coefficients (D) were measured in randomly oriented hydrated collagen fibers. Three T2 relaxation times were discerned indicating the presence of at least three water fractions in the collagen sample. The D values associated with...
The known protein structures have been analyzed to find out if there is any pattern in the type of residues used and their conformation at the two terminal positions of the polypeptide chains. While the N‐terminal position is overwhelmingly occupied by Met (followed by Ala and Ser), the...
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