Synthetic Polypeptides
نویسندگان
چکیده
منابع مشابه
THE STRUCTURE OF THE SYNTHETIC a-POLYPEPTIDES
THE classic work of Astbury [l] has shown that structurally the fibrous proteins fall into two main groups : the keratin-myosinepidermin-fibrinogen group, known for short as km-o-f, and the collagens. The distinction between them is displayed most clearly by their wide-angle X-ray diffraction patterns. These also show that the k-m-e-f group can exist in two forms, known as CC and /l, which unde...
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Amphibian skin represents an enormous store-house of biogenic amines and active peptides. So far four groups of peptides have been identified: (a) physalaemin-like peptides (physalaemin, phyllomedusin and uperolein) possessing an intense action on vascular and extravascular smooth muscle as well as a potent action on lachrymal and salivary glands. Physalaemin is the most potent hypotensive agen...
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DBA/1 mice are high responders to the (Phe, G) determinant of the synthetic polypeptide (Phe, G)-Pro--L, whereas SJL mice respond well to the Pro--L region of this macromolecule (6). In order to determine whether the phenomenon described above is related to the number of antigen-sensitive units detected for both specificities, and whether responses to these determinants can be transferred indep...
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Concentrated solutions of poly-y-benzyl-L-glutamate (PBLG), while still in a fluid condition, have previously been shown to be in a liquid crystalline state, characterized as helicoidal or 'cholesteric'. We have found that this same structure persists in certain solid films of PBLG. This conclusion was reached from studies of swelling, x-ray, NMR and optical properties. Orientation of the PBLG ...
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In a preliminary communication last year' we stated that there are only two helical configurations of polypeptide chains in which the residues are all equivalent and intramolecular hydrogen bonds are formed, and in which the interatomic distances, bond angles, and other structural features, especially the coplanarity of the conjugated amide system, are as required by earlier work in these Labor...
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ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1956
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.14.1