Glycopeptides from Earthworm Cuticle Collagen
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چکیده
منابع مشابه
Structures of the D-galactose oligosaccharides from earthworm cuticle collagen.
Earthworms have a thin layer of cuticle which covers the whole body and serves as a general protective function. This cuticle has the characteristic wide angle x-ray diffraction pattern of collagen (1, 2) and has an amino acid composition characteristic of collagen (3). Much of the dry weight of this cuticle can be extracted by neutral salt or weak acid and purified as a collagen (4, 5). Earthw...
متن کاملSoluble Earthworm Cuticle Collagen: a Possible Dimer of Tropocollagen
When soluble earthworm cuticle collagen molecules are subjected to the shearing forces of a flow birefringence instrument, they are broken into particles approximately half the original size. The broken particles resemble vertebrate tropocollagen molecules in their hydrodynamic properties, in levorotatory powers, and in their appearance in the electron microscope. Most significantly, the broken...
متن کاملThe chemical composition of earthworm cuticle.
Forssberg, A. & Klein, G. (1954). Exp. Cell Res. 7, 480. Goucher, C. R., Kamei, I. & Kocholaty, W. (1956). Arch. Biochem. Biophys. 65, 522. Gray, L. H., Conger, A. D., Ebert, M., Hornsey, S. & Scott, 0. C. A. (1953). Brit. J. Radiol. N.S. 26, 638. Harrington, H. & Lavik, P. S. (1957). Cancer Res. 17, 38. Holmes, B. E. (1949). Brit. J. Radiol. N.S. 22, 487. Howard, A. & Pelc, S. R. (1951). Exp. ...
متن کاملDenatured collagen from the cuticle of Ascaris lumbricoides as a substrate for protocollagen proline hydroxylase.
Recent studies have shown that the hydroxyproline and hydroxylysine found in the collagen of vertebrates are synthesized by the hydroxylation of proline and lysine, which have been incorporated into a large polypeptide precursor of collagen called protocollagen. Because the collagen isolated from the cuticle of Ascaris lumbricoides contains less hydroxyproline and hydroxylysine than any other k...
متن کاملEarthworms produce a collagen-like substance detected by the garter snake vomeronasal system.
Earthworms (Lumbricus terrestris) produce a chemical substance that is readily detected by and serves as an attractant for garter snakes (Thamnophis sirtalis). This chemoattractant is sensed by the vomeronasal system of snakes. Amino acid analysis of the chemoattractant revealed a high hydroxyproline/proline ratio and large amounts of serine and threonine. More than one-third of the residues we...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1970
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)63361-7