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Mucins colonic

Sudha, P. S., Devaraj, H., and Devaraj, N. (2001). Adherence of Shigella dysenteriae 1 to human colonic mucin. Curr. Microbiol. 42, 381-387. [Pg.158]

Uchida, FI., Fujitani, K., Kawai, Y., Kitazawa, H., Horii, A., Shiiba, K., Saito, K., and Saito, T. (2004). A new assay using surface plasmon resonance (SPR) to determine binding of the Lactobacillus acidophilus group to human colonic mucin. Biosci. Biotechnol. Biochem. 68, 1004 1010. [Pg.43]

The roles of enteric bacterial sialidase, sialate O-acetyl esterase and glycosulfatase in the degradation of human colonic mucin. Glycoconj J 10, 72-81... [Pg.44]

Among the fungal and protozoal lectins only a few have been studied in detail. One of these is the galactose-specific lectin of the protozoa Entamoeba histolytica. It mediates adhesion of the parasite to human colonic mucin glycoproteins and has a central role in the contact-dependent cytolysis or histolysis for which the parasite is named. A sialic-acid-speeific lectin has been isolated from merozoites of the human malarial parasite, Plasmodium falciparum. An unusual lectin is that of the protozoan Giardia lamblia, specific for mannose-6-phosphate, which is activated by trypsinization. [Pg.476]

Appendiceal mucinous neoplasms can be distinguished from colonic mucinous adenocarcinomas by their comparatively greater CK7 staining and MUC5A reactivity, whereas colonic neoplasms tend to be nonreactive. [Pg.512]

A keratan-sulphate-degrading enzyme from Escherichia freundii has been shown to hydrolyse milk oligosaccharides and desialylized porcine colonic mucin for example, the tetrasaccharide (9) from milk and a reduced form thereof... [Pg.367]

Mucins.—Porcine colonic mucin has been desialylized by mild hydrolysis with acid the modified glycoprotein was used as a substrate for an endb-jS-D-galactosidase. ... [Pg.444]

An enzyme that degrades keratan sulphate, porcine colonic mucin, and milk oligosaccharides has been isolated from E. Desialylized, porcine colonic... [Pg.387]

To investigate the latter possibility, sections of bovine submandibular gland and human colon were oxidized for periods of either 10 or 30 minutes and were then reduced with sodium borohydride. The sections were then reoxidized with periodate for various periods and then stained with Schiff reagent. The results obtained showed that when human colonic mucins were oxidized for an initial period of 10 minutes, some PAS reactivity could be regenerated by a second oxidation period of 60 minutes. When however, the initial oxidation period was extended to 30 minutes, no further PAS reactivity could be generated by a second period of oxidation. These results could be interpreted in two ways either they were the result of the incomplete oxidation of a relatively small number of 9-0-acyl sialic acids or the failure to oxidize other tissue diols. The probability of the latter was lessened by the observation that the oxidation of the crypt mucins of rabbit small intestine which do not contain 0-acylated sialic acids was apparently complete in 10 minutes. [Pg.186]

Corfield, A.P., Myerscough, N., Warren, B.F., Durdey, P., Paraskeva, C., and Schauer, R. Reduction of sialic acid 0-acetylation in human colonic mucins in the adenoma-carcinoma sequence. Glycoconj. J. (1999) 16, 307-317. [Pg.1360]

One of the major glycoproteins expressed by E. histolytica, which is a major cause of amoebic dysentery, is a carbohydrate-binding protein. The parasite expresses a lectin [91, 92] that recognizes Gal/GalNAc residues [93, 94], The Gal/GalNAc lectin has heavy ( 170 kDa) and light (31-35 kDa) subimits [95-97] and causes adhesion of trophozoites to colonic mucin, epithelium, and other target cells. Adhesion is followed by contact dependent cytolysis of host cells. [Pg.1972]


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See also in sourсe #XX -- [ Pg.493 ]




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