| CA | anterior commissure [Lat. commissura anterior]; calcium antagonist; California [rabbit]; cancer; Can... |
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| CI | cardiac index; cardiac insufficiency; cell immunity; cell inhibition; cephalic index; cerebral infar... |
| CL | capillary lumen; cardiolipin; cell line; centralis lateralis; chemiluminescence; chest and left arm ... |
| CLMF | cytotoxic lymphocyte maturation factor |
| CT | calcitonin; calf testis; cardiac tamponade; cardiothoracic [ratio]; carotid tracing; carpal tunnel; ... |
| plaque-forming unit | <virology> Number of infectious virus particles or Ig producing cells per unit volume. See: plaque assay. <microbiology> Refers to any entity which can give rise to a plaque. For example: if a phage stock solution has 1010 pfu/ml, it means that every ml of this stock has 1010 phage particles which can form plaques. This (pfu/ml) is the conventional way to refer the concentration of a phage preparation. Compare: CFU. (10 Oct 1997) |
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| spleen focus-forming viruses | Murine leukaemia viruses that are replication-defective and rapidly transforming. The envelope gene plays an essential role in initiating erythroleukaemia, manifested by splenic foci, splenomegaly, and polycythemia. Spleen focus-forming viruses are generated by recombination with other viral types including friend p (polycythemia), friend a (anaemia), rauscher, and cas (from wild mice at lake casita, california). (12 Dec 1998) |
| endospore-forming bacteria | A group of rods or cocci whose taxonomic affinities are uncertain. They form endospores, thick-walled bodies formed within the vegetative cells of certain bacteria, able to withstand adverse environmental conditions for prolonged periods. (12 Dec 1998) |
| focus-forming assay | <investigation> A lab technique used to find out if a particular piece of DNA contains oncogenes (genes which are associated with cancer). This is done by putting the DNA into animal cells which normally show contact inhibition, or which stop growing when they come into physical contact with other cells or reach a certain density in the culture. If the cells lose contact inhibition and form areas of densely-packed cells (called foci) after receiving the DNA, it means that the DNA did contain oncogenes. (05 Jan 1997) |
| focus-forming unit | A measurement of the concentration of live virus in a given amount of fluid. This is measured by spreading a known amount of the fluid over a layer of cultured cells which are infected by the virus, then counting the number of areas in the culture which look infected. (09 Oct 1997) |
| forming face | The side of the Golgi apparatus which faces the rough endoplasmic reticulum, where vesicles budding off of the rough endoplasmic reticulum fuse to the Golgi apparatus. Also called the cis side of the Golgi apparatus. (09 Oct 1997) |
| Friend spleen focus forming virus | <virology> Defective virus found in certain strains of Friend virus, detected by its ability to form foci in spleens of mice and believed to be responsible in those strains for the production of a leukaemia associated with polycythaemia rather than anaemia. (18 Nov 1997) |
| lignin-forming peroxidase | <enzyme> Involved in polymerization of cinnamyl alcohols into lignin;amino acid sequence has been determined for tobacco enzyme Registry number: EC 1.11.1.- (26 Jun 1999) |
| adenovirus e1a proteins | Proteins transcribed from the e1a region of adenovirus which are involved in positive regulation of transcription of the early genes. (12 Dec 1998) |
| adenovirus e1b proteins | Proteins transcribed from the e1b region of adenovirus which are involved in regulation of the levels of early and late gene expression. (12 Dec 1998) |
| adenovirus e1 proteins | The very first viral gene products synthesised after cells are infected with adenovirus. The e1 region of the genome has been divided into two major transcriptional units, e1a and e1b, each expressing proteins of the same name (adenovirus e1a proteins and adenovirus e1b proteins). (12 Dec 1998) |
| adenovirus e2 proteins | Proteins transcribed from the e2 region of adenovirus. Several of these are required for viral DNA replication. (12 Dec 1998) |
| adenovirus e3 proteins | Proteins transcribed from the e3 region of adenovirus but not essential for viral replication. The e3 19k protein mediates adenovirus persistence by reducing the expression of class I major histocompatibility complex antigens on the surface of infected cells. (12 Dec 1998) |
| adenovirus e4 proteins | Proteins transcribed from the e4 region of adenovirus. The e4 19k protein transactivates transcription of the adenovirus e2f protein and complexes with it. (12 Dec 1998) |
| adenovirus early proteins | <molecular biology, protein, virology> Proteins encoded by adenoviruses that are synthesised prior to, and in the absence of, viral DNA replication. The proteins are involved in both positive and negative regulation of expression in viral and cellular genes, and also affect the stability of viral mRNA. Some are also involved in oncogenic transformation. (12 Dec 1998) |