| CTU | cardiac-thoracic unit; centigrade thermal unit; constitutive transcription unit |
|---|---|
| GnRH | Gonadotropin Releasing Hormone [HP 1898, 2034] = LHRH = Go... |
| HCG, hCG | Human Chorionic Gonadotropin; »ç¶÷À¶¸ð¼º¼º¼±ÀÚ±ØÈ£¸£¸ó 1. Placental Glycoprotein Hormone &nbs... |
| CSIF | cytokine synthesis inhibitory factor |
| DDS | damaged disc syndrome; dendrodendritic synaptosome; dental distress syndrome; depressed DNA synthesi... |
| cNOS | Constitutive NO Synthase |
|---|---|
| cNO | constitutive NO |
| CTE | Constitutive Transport Element |
| cNOS | Constitutive nitric oxide synthase |
| ecNOS | Endothelial constitutive nitric oxide synthase |
| constitutive | Constantly present, whether there is demand or not. Thus some enzymes are constitutively produced, whereas others are inducible. (18 Nov 1997) |
|---|---|
| constitutive enzyme | <enzyme> An enzyme that is constantly produced by the cell regardless of the growth conditions. Compare: induced enzyme. (05 Mar 2000) |
| constitutive gene | A gene which is continuously expressed without any regulation (transcription can be neither suppressed nor encouraged). These genes generally encode housekeeping functions and are expressed at low levels in all cells. (09 Oct 1997) |
| constitutive heterochromatin | <protein> Regions on chromosomes which are permanently condensed and genetically inactive in every cell in the body. The condensed portions are always in the same position on both homologous chromosomes. An example is the centromeres. Compare: facultative heterochromatin. (09 Oct 1997) |
| constitutive mutant | An organism with a mutation in a regulatory gene, so that the genes which its flawed regulatory product are supposed to suppress become constitutive genes, or impossible to turn off. Thus, the products of the uncontrolled genes are produced to excess. (09 Oct 1997) |
| vectorial synthesis | <cell biology> Term usually applied to the mode of synthesis of proteins destined for export from the cell. As the protein is made it moves (vectorially) through the membrane of the rough endoplasmic reticulum, to which the ribosome is attached and into the cisternal space. (06 Mar 2000) |
| gene synthesis | <molecular biology> The complete synthesis of a gene using a DNA synthesiser (gene machine), or the assembly of oligonucleotides so synthesised into a synthetic gene, as opposed to cloning. (14 Nov 1997) |
| cell-free protein synthesis | <technique> An in vitro method to make proteins, using amino acids, the mRNA corresponding to the protein to be made, and a cell-free extract (the contents of a cell after removal of the cell wall and/or outer cell membranes) for other needed components and enzymes. (26 Mar 1998) |
| cellular immunodeficiency with abnormal immunoglobulin synthesis | An ill-defined group of sporadic disorders of unknown cause, occurring in both males and females and associated with recurrent bacterial, fungal, protozoal, and viral infections; there is thymic hypoplasia with depressed cellular (T-lymphocyte) immunity combined with defective humoral (B-lymphocyte) immunity, although immunoglobulin levels may be normal. Synonym: Nezelof syndrome, Nezelof type of thymic alymphoplasia. (05 Mar 2000) |
| Merrifield synthesis | The synthesis of peptides and proteins via an automated system on carrier polymers. (05 Mar 2000) |
| chiral synthesis | <chemistry> The production of chiral compounds in only one enantiomer, or handedness. (See chirality) (05 Jan 1998) |
| coordinated enzyme synthesis | The regulatory mechanism where an entire group of different enzymes, all of which play a part in the same metabolic process, is synthesised at the same time. This comes about because the chemical signal to begin synthesis of each enzyme is the same for all of them. (09 Oct 1997) |
| protein synthesis | The process in which individual amino acids, whether of exogenous or endogenous origin, are connected to each other in peptide linkage in a specific order dictated by the sequence of nucleotides in DNA; this governing sequence is conveyed to the synthesizing apparatus in the ribosomes by mRNA, formed by base-pairing on the DNA template. (05 Mar 2000) |
| protein synthesis inhibitor | Compounds which inhibit the synthesis of proteins. They are usually antibiotics or toxins. Mechanism of the action of inhibition includes the interruption of peptide-chain elongation, the blocking the the a site of ribosomes, the misreading of the genetic code or the prevention of the attachment of oligosaccharide side chains to glycoproteins. (12 Dec 1998) |
| nucleic acid synthesis inhibitors | Compounds that inhibit cell production of DNA or RNA. (12 Dec 1998) |
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