| proteinoid droplet | Membrane bounded droplets supposed to have been formed in primaeval soup as an early stages in the evolution of cells. (18 Nov 1997) |
|---|---|
| proteinoids | Artificially synthesised heteropoly(amino acids). (05 Mar 2000) |
| proteinoplast | Form of plastid adapted as a protein storage organelle, the protein may be crystalline. (18 Nov 1997) |
| proteinosis | A state characterised by disordered protein formation and distribution, particularly as manifested by the deposition of abnormal proteins in tissues. Origin: protein + G. -osis, condition (05 Mar 2000) |
| proteins | Nitrogenous organic compounds, containing more than about 100 amino acid residues, molecular weight 8,000-200,000, in vegetable and animal matter. Proteins yield amino acids on hydrolysis and are foods assimilated as amino acids and reconstructed in the protoplasm. (12 Dec 1998) |
| proteinuria | Too much protein in the urine. This may be a sign of kidney damage. Origin: Gr. Ouron = urine (09 Oct 1997) |
| proteles | <zoology> A South Africa genus of Carnivora, allied to the hyenas, but smaller and having weaker jaws and teeth. It includes the aardwolf. Source: Websters Dictionary (01 Mar 1998) |
| protensity | The time attribute of a mental process; the attribute of a mental process characterised by its temporality or movement forward in time. Origin: L. Protendo (-tensum), to extend (05 Mar 2000) |
| proteo- | Protein. (05 Mar 2000) |
| proteochondroitin sulfates | Proteoglycans found in cartilage. They consist of several chondroitin sulfate molecules linked to protein(s) by neutral sugar linkage regions. (12 Dec 1998) |
| proteoclastic | Synonym: proteolytic. Origin: proteo-+ G. Klastos, broken (05 Mar 2000) |
| proteogenic | Capable of producing proteins. Synonym: proteinogenic. (05 Mar 2000) |
| proteoglycan | <protein> A high molecular weight complex of protein and polysaccharide, characteristic of structural tissues of vertebrates, such as bone and cartilage, but also present on cell surfaces. Important in determining viscoelastic properties of joints and other structures subject to mechanical deformation. Glycosaminoglycans (GAGs), the polysaccharide units in proteoglycans, are polymers of acidic disaccharides containing derivatives of the amino sugars glucosamine or galactosamine. (18 Nov 1997) |
| proteoglycan I | A small proteoglycan, 150-240 kD, of the extracellular matrix. The core protein has a mass of _42 kD and is very similar to the core protein of decorin and fibromodulin. All three have highly conserved sequences containing 10 internal homologous repeats of _ 25 amino acids with leucine rich motifs. Biglycan has two glycosaminoglycan chains, either chondroitin sulphate or dermatan sulphate and N linked oligosaccharides. (18 Nov 1997) |
| proteoglycanase | <enzyme> Metal-dependent; acts at neutral pH; degrades the protein core without acting on carbohydrate side chains Registry number: EC 3.4.- (26 Jun 1999) |