Biomaterial Database

Distribution of sulphydryl groups and disulphide linkages in tissue proteins of quail uropygial glands. 1994

T Suzuki, and T Maruyama, and M Morohashi

Department of Agricultural Technology, College of Technology, Toyama Prefectural University.

1. The distribution of sulphydryl (-SH) groups and disulphide (S-S) linkages in the tissue proteins of quail uropygial glands was histochemically observed by a staining method using N-[7-dimethylamino-4-methyl-3-coumarinyl]maleimide. 2. In the uropygial gland, the -SH groups of the tissue proteins of glandular cells displayed a progressive change to S-S linkages concomitant with the shift from the transitional cell layer to the degenerating cell layer, suggesting that cell destruction was occurring with the products being released as secretions. This phenomenon was apparently more pronounced in the deep compared with the shallow portion of secretory tubules. 3. The above results indicated that a mechanism similar to epidermal differentiation operates in the process of holocrine secretion in the uropygial gland.

UI	MeSH Term	Description	Entries
D008301	Maleimides	Derivatives of maleimide (the structural formula H2C2(CO)2NH) containing a pyrroledione ring where the hydrogen atom of the NH group is replaced with aliphatic or aromatic groups.
D011506	Proteins	Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.	Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D003370	Coturnix	A genus of BIRDS in the family Phasianidae, order GALLIFORMES, containing the common European and other Old World QUAIL.	Japanese Quail,Coturnix japonica,Japanese Quails,Quail, Japanese,Quails, Japanese
D004220	Disulfides	Chemical groups containing the covalent disulfide bonds -S-S-. The sulfur atoms can be bound to inorganic or organic moieties.	Disulfide
D006651	Histocytochemistry	Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods.	Cytochemistry
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012627	Sebaceous Glands	Small, sacculated organs found within the DERMIS. Each gland has a single duct that emerges from a cluster of oval alveoli. Each alveolus consists of a transparent BASEMENT MEMBRANE enclosing epithelial cells. The ducts from most sebaceous glands open into a HAIR FOLLICLE, but some open on the general surface of the SKIN. Sebaceous glands secrete SEBUM.	Gland, Sebaceous,Glands, Sebaceous,Sebaceous Gland
D013438	Sulfhydryl Compounds	Compounds containing the -SH radical.	Mercaptan,Mercapto Compounds,Sulfhydryl Compound,Thiol,Thiols,Mercaptans,Compound, Sulfhydryl,Compounds, Mercapto,Compounds, Sulfhydryl
D013439	Sulfhydryl Reagents	Chemical agents that react with SH groups. This is a chemically diverse group that is used for a variety of purposes. Among these are enzyme inhibition, enzyme reactivation or protection, and labelling.	SH-Reagents,Sulfhydryl Compound Antagonists,Sulfhydryl Compound Inhibitors,Thiol Reagents,Sulfhydryl Compounds Antagonists,Sulfhydryl Compounds Inhibitors,Antagonists, Sulfhydryl Compound,Antagonists, Sulfhydryl Compounds,Compound Antagonists, Sulfhydryl,Compound Inhibitors, Sulfhydryl,Inhibitors, Sulfhydryl Compound,Inhibitors, Sulfhydryl Compounds,Reagents, Sulfhydryl,Reagents, Thiol,SH Reagents