Zobrazeno 1 - 10
of 277
pro vyhledávání: '"Isabella L. Karle"'
Publikováno v:
Biopolymers. 98:76-86
An 18-residue sequence Boc-Aib-Val-Ala-Leu-Aib-Val-Ala-Leu-Gly-Pro-Val-Ala-Leu-Aib-Val-Ala-Leu-Aib-OMe (UK18) was designed to examine the effect of introducing a Gly-Pro segment into the middle of a potentially helical peptide. The crystal structures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48f624905c5495e55965279d1a61f044
https://doi.org/10.1002/bip.21697
https://doi.org/10.1002/bip.21697
Autor:
Theodor Wieland, Isabella L. Karle
Publikováno v:
International Journal of Peptide and Protein Research
The cyclic decapeptide antamanide and the synthetic, biologically active analog [Phe4 Val6]antamanide (cyclic[ValProProPhePhe]2) crystallize in various crystal forms as a function of the solvent. The present crystalline polymorph obtained from aceton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d2a512bef2a9b853c9b99e2e24156dd
https://doi.org/10.1111/j.1399-3011.1987.tb02289.x
https://doi.org/10.1111/j.1399-3011.1987.tb02289.x
Autor:
Isabella L. Karle
Publikováno v:
International Journal of Peptide and Protein Research. 28:420-427
All the peptide bonds in cyclic(Gly-L-Pro-D-Phe-Gly-L-Ala) are in the trans conformation; however, the peptide bond C'5-N1 is twisted by 19 degrees from planarity (omega 5 = -161 degrees). A Type II beta-turn encompasses the L-Pro-D-Phe residues. Car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be54758fd9adc6e0100b378e04273532
https://doi.org/10.1111/j.1399-3011.1986.tb03274.x
https://doi.org/10.1111/j.1399-3011.1986.tb03274.x
Publikováno v:
International Journal of Peptide and Protein Research. 32:536-543
In the crystal, the backbone of Boc-(Aib-Val-Ala-Leu)2-Aib-OMe adopts a helical form with four alpha-type hydrogen bonds in the middle, flanked by 3(10)-type hydrogen bonds at either end. The helical molecules stack in columns with head-to-tail hydro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc1d3ff8d4d5775eb2fc67cec604c370
https://doi.org/10.1111/j.1399-3011.1988.tb01385.x
https://doi.org/10.1111/j.1399-3011.1988.tb01385.x
Autor:
Isabella L. Karle
Publikováno v:
International Journal of Peptide and Protein Research. 23:32-38
Upon long standing and very slow evaporation, a solution of the cyclic pentapeptide and Mg(SCN)2 in CDCl3/CD3CN produced colorless crystals of a 1:1 complex of the peptide and Mg++. X-ray diffraction analysis showed the contents of the asymmetric uni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4945f5c03cf8a81f671a131699719540
https://doi.org/10.1111/j.1399-3011.1984.tb02688.x
https://doi.org/10.1111/j.1399-3011.1984.tb02688.x
Autor:
Darshan Ranganathan, Isabella L. Karle
Publikováno v:
International Journal of Peptide and Protein Research. 46:24-29
The adipoyl- and suberoyl-linked bis(Ala) peptides have an extended backbone between the two C alpha atoms in each molecule. They self-assemble, through intermolecular hydrogen bonds and stacking of parallel strands, into highly ordered modified beta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5fd0580abfff605f5ccb4690c3a97ab
https://doi.org/10.1111/j.1399-3011.1995.tb00578.x
https://doi.org/10.1111/j.1399-3011.1995.tb00578.x
Autor:
Isabella L. Karle, Miklos Bodanszky
Publikováno v:
International Journal of Peptide and Protein Research. 32:194-199
Ortho-nitrophenyl esters of blocked amino acids have significantly higher aminolysis rates than the corresponding para-nitrophenyl esters. This difference prompted a series of investigations that led to the present study. Single crystal X-ray diffrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8da89f02a8fad26636622212e1e7842
https://doi.org/10.1111/j.1399-3011.1988.tb00934.x
https://doi.org/10.1111/j.1399-3011.1988.tb00934.x
Autor:
Isabella L. Karle
Publikováno v:
International Journal of Peptide and Protein Research. 16:471-476
Different isomers of beta-hydroxy-N-acetyl-tryptophanamide are obtained depending upon the preparative route. The threo (from enzymatic oxidation) and erythro (from synthetic reduction) forms are distinguished further by their conformation, particula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81c4776f9360775e3961060e71274dc
https://doi.org/10.1111/j.1399-3011.1980.tb02971.x
https://doi.org/10.1111/j.1399-3011.1980.tb02971.x
Publikováno v:
International Journal of Peptide and Protein Research. 42:401-410
The crystal structure determination of three heptapeptides containing alpha-aminoisobutyryl (Aib) residues as a means of helix stabilization provides a high-resolution characterization of 6-->1 hydrogen-bonded conformations, reminiscent of helix-term
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f1ef25f8adfc70f16cbfc5444fc1025
https://doi.org/10.1111/j.1399-3011.1993.tb00147.x
https://doi.org/10.1111/j.1399-3011.1993.tb00147.x
Autor:
Isabella L. Karle
Publikováno v:
International Journal of Peptide and Protein Research. 28:6-14
Crystals of [Phe4 Val6] antamanide (cyclic [ValProProPhePhe]2) grown from dioxane/H2O, with space group P21212 and cell parameters a = 15.099(4), b = 22.008(5) and c = 11.024(3) A, are almost identical to crystals grown from H2O/acetone, the structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa7f9cbff79cfa9929b4efd838c58b44
https://doi.org/10.1111/j.1399-3011.1986.tb03224.x
https://doi.org/10.1111/j.1399-3011.1986.tb03224.x