| proteoglycans | Glycoproteins which have a very high polysaccharide content. (12 Dec 1998) |
|---|---|
| Proteoheparan sulphate | <protein> Obsolete term for hydrophobic Integral membrane proteins. (18 Nov 1997) |
| proteohormone | An obsolete term for a hormone possessing a protein structure. (05 Mar 2000) |
| proteolipid protein | <protein> Highly conserved membrane protein (30 kD) in myelin. Cellular function obscure but mutations lethal for example jimpy mouse and Pelizaeus Merzbacher disease of man. (18 Nov 1997) |
| proteolipids | Protein-lipid combinations abundant in brain tissue, but also present in a wide variety of animal and plant tissues. In contrast to lipoproteins, they are insoluble in water, but soluble in a chloroform-methanol mixture. The protein moiety has a high content of hydrophobic amino acids. The associated lipids consist of a mixture of phosphoglycerides, cerebrosides, and sulfatides, while lipoproteins contain phospholipids, cholesterol, and triglycerides. (12 Dec 1998) |
| proteolysis | <cell biology> Cleavage of proteins by proteases. Limited proteolysis occurs where proteins are functionally modified (activated in the case of zymogens) by highly specific proteases. (18 Nov 1997) |
| proteolytic | 1. Pertaining to, characterised by or promoting proteolysis. 2. An enzyme that promotes proteolysis (= the splitting of proteins by hydrolysis of the peptide bonds with formation of smaller polypeptides). Origin: Gr. Lysis = dissolution (18 Nov 1997) |
| proteolytic enzyme | <enzyme> See protease or peptidase. (18 Nov 1997) |
| proteometabolic | Relating to the metabolism of proteins. (05 Mar 2000) |
| proteometabolism | Decomposition and synthesis of protein in the tissues. Synonym: proteometabolism. (05 Mar 2000) |
| Proteomyxidia | Former name for Eumycetozoea. Origin: Proteus + G. Myxa, mucus (05 Mar 2000) |
| proteopectic | Proteopexic Relating to proteopexis. (05 Mar 2000) |
| proteopepsis | The digestion of protein. Origin: proteo-+ G. Pepsis, digestion (05 Mar 2000) |
| proteopexis | The fixation of protein in the tissues. Origin: proteo-+ G. Pexis, fixation (05 Mar 2000) |
| proteose | A nondescript mixture of intermediate products of proteolysis between protein and peptone. Primary proteose, the first result of hydrolysis of metaprotein; two stages, protoproteose and heteroproteose, have been distinguished. Secondary proteose, proteose derived from primary proteose by further hydrolysis. (05 Mar 2000) |