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Predicted interactions of ionizable side chains in a fragment of the three-dimensional energy-minimized model for calf skin type I collagen microfibril / Eleanor M. Brown in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVIII, N° 1 (01/1993)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVIII, N° 1 (01/1993) . - p. 2-11 Titre : Predicted interactions of ionizable side chains in a fragment of the three-dimensional energy-minimized model for calf skin type I collagen microfibril Type de document : texte imprimé Auteurs : Eleanor M. Brown, Auteur ; J. M. Chen, Auteur ; Stephen H. Feairheller, Auteur Année de publication : 1993 Article en page(s) : p. 2-11 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Tree-dimensional structures of a fragment of Type I collagen triple helices and microfibrils were examined to predict the formation of stabilizing interactions and binding sites for chromium and acidic crosslinkers.Interactions of arginine and lysine side chains with negatively charged side chains, which may contribute to the stability of triple helical and larger collagen assemblies, were identified in the computer models.Lysine to lysine distances were measured and used to predict suitable chain lengths for bifunctional acidic crosslinkers.Fourteen sites composed of acidic side chains separated by 6-8A suitable for crosslinking with a 7A binuclear chromium complex were identified.After conversion of amide side chains to the corresponding acid form, as would occur by liming, an additional nine sites were identified. En ligne : https://drive.google.com/file/d/1gfY758VfXavGnryKEX-RP4qPAl0-lDGQ/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8242 [article]

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Interactions between surfactant alkyl sulfo-N-succinimidyl esters and collagen fibrils / C. E. Kung in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. LXXXVIII, N° 1 (01/1993)  

[article]  inJOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. LXXXVIII, N° 1 (01/1993) . - p. 12-24 Titre : Interactions between surfactant alkyl sulfo-N-succinimidyl esters and collagen fibrils Type de document : texte imprimé Auteurs : C. E. Kung, Auteur ; B. E. Maleeff, Auteur ; Robert L. Dudley, Auteur ; Paul L. Kronick, Auteur Année de publication : 1993 Article en page(s) : p. 12-24 Note générale : Bibliogr. Langues : Américain (ame) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : A surface-active agent, sulfo-N-succinimidyl(SSU) was prepared as a probe for collagen-surfactant interactions.When the probe was mixed with monomeric and dimeric collagen in solution, the alfa1 and beta11 chains reacted to give an electrophoretically homogenous product with increased mobility; the mobilities of the alfa2 and beta12 chains were unaltered.The surfactant appeared to coat fibrils of collagen when dried and viewed in the electron microscope.Experimental evidence forthe chemical reactivity of SSU with hippuryllysine under mild conditions was obtained by NMR.Besides serving as a probe for investigations, SSU might also be a model of a permanent leather lubricant requiring minimal amounts of material. En ligne : https://drive.google.com/file/d/1iez6xE3Nn26ryoGo6O9MHzak9Kr-7zhE/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8243 [article]

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