| plasma proteins | Dissolved protein's (more than 100) of blood plasma, mainly albumins and globulins (normally 6 to 8 g/100 ml); they hold fluid in blood vessels by osmosis and include antibodies and blood-clotting protein's. Synonym: serum proteins. (05 Mar 2000) |
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| muscle proteins | The protein constituents of muscle, the major ones being actins and myosin. More than a dozen accessary proteins exist including troponin, tropomyosin, and dystrophin. (12 Dec 1998) |
| contractile proteins | Proteins which participate in contractile processes. They include muscle proteins as well as those found in other cells and tissues. In the latter, these proteins participate in localised contractile events in the cytoplasm, in motile activity, and in cell aggregation phenomena. (12 Dec 1998) |
| Mx proteins | GTPases (70-100 kD) found in interferon treated cells. Mx1 is found in the nucleus and determines the resistance of mice to influenza A virus by blocking transcription of the viral RNA genome. Other Mx proteins are cytoplasmic and are related to dynamin. (18 Nov 1997) |
| myc proteins | <molecular biology> Family of proteins involved in control of translation, have a C terminal basic helix loop helix zipper domain. Myc Max heterodimers specifically bind the sequence CACGTG with higher affinity than homodimers of either. (18 Nov 1997) |
| myelin basic proteins | A group of 7 proteins produced from a single gene by alternate splicing found in central and peripheral nervous system myelin. The major basic protein (mbp) has long been of interest because it is the antigen, that, when injected into an animal, elicits a cellular immune response that produces the CNS autoimmune disease called experimental allergic encephalomyelitis (encephalomyelitis, allergic). In the peripheral nervous system, myelin basic protein 18.5 kD is often referred to as the p1 protein. (12 Dec 1998) |
| myelin proteins | Proteins found in the myelin sheath. The major proteins of central nervous system myelin include: myelin proteolipid protein, myelin basic proteins, and myelin-associated glycoprotein. The major proteins of peripheral nervous system myelin include: myelin basic proteins (myelin p1 protein and myelin p2 protein), myelin p0 protein, and myelin-associated glycoprotein. (12 Dec 1998) |
| pregnancy proteins | Proteins produced by organs of the mother or the placenta during pregnancy. They may be either pregnancy specific (present only during pregnancy) or pregnancy associated (always present during pregnancy, but may also be present in individuals undergoing oestrogen therapy, taking oral contraceptives or in patients with certain malignancies.) (12 Dec 1998) |
| pregnancy zone proteins | Glycoproteins with the electrophoretic mobility of an alpha 2-globulin. They are found in small amounts in normal human plasma but in much larger volume in the plasma of pregnant women. These proteins have also been found in increased amounts in individuals undergoing oestrogen therapy and are sometimes produced ectopically by tumours of non-placental origin. Pregnancy zone proteins are believed to be of maternal rather than placental origin. (12 Dec 1998) |
| cytoskeletal proteins | Major constituent of the cytoskeleton found in the cytoplasm of eukaryotic cells. They form a flexible framework for the cell, provide attachment points for organelles and formed bodies, and make communication between parts of the cell possible. (12 Dec 1998) |
| heat-shock proteins 70 | <cell biology, protein> A class of molecular chaperones found in both prokaryotes and in several compartments of eukaryotic cells. There is evidence that these proteins can interact with polypeptides during a variety of assembly processes in such a way as to prevent the formation of nonfunctional structures. (12 Dec 1998) |
| heat-shock proteins 90 | <cell biology, protein> A class of molecular chaperones whose members act in the mechanism of signal transduction by steroid receptors. (12 Dec 1998) |
| salivary proteins | Proteins found in saliva and the salivary glands. These proteins show some enzymatic activity, but their composition varies in different individuals. (12 Dec 1998) |
| helminth proteins | Proteins found in any species of helminth. (12 Dec 1998) |
| scaffold proteins | Proteins that remain when chromosomes are digested with DNase. Many antigenic species have been identified. (18 Nov 1997) |