| streptomycin | Commonly used antibiotic in cell culture media: acts only on prokaryotes and blocks transition from initiation complex to chain elongating ribosome. Isolated originally from a soil streptomycete. (18 Nov 1997) |
|---|---|
| streptomycin 3''-adenylyltransferase | <enzyme> Aada confers both spectinomycin and streptomycin resistance in tobacco and tomato plants Registry number: EC 2.7.7.47 Synonym: aminoglycoside 3''-adenylyltransferase, aminoglycoside 3''-adenyltransferase, aada protein, aada gene product, spectinomycin adenyltransferase (26 Jun 1999) |
| streptomycin 3''-kinase | <enzyme> Phosphorylates the 3'' oh group on the amino sugar of streptomycin Registry number: EC 2.7.1.87 Synonym: streptomycin-3''-phosphotransferase, streptomycin phosphotransferase, aph(3''), stra gene product (26 Jun 1999) |
| streptomycin 6-kinase | <enzyme> Datp can replace ATP; dihydrostreptomycin, streptidine and 2-deoxystreptidine can act as acceptors Registry number: EC 2.7.1.72 Synonym: streptidine kinase, streptomycin streptidinokinase, streptomycin 6-phosphotransferase, aph(6)-id, strb gene product, aminoglycoside-6-phosphotransferase (26 Jun 1999) |
| streptomycin-6-phosphatase | <enzyme> Final step in streptomycin biosynthesis; dihydrostreptomycin-6-p is hydrolyzed to dihydrostreptomycin Registry number: EC 3.1.3.39 (26 Jun 1999) |
| streptomycin A | Commonly used antibiotic in cell culture media: acts only on prokaryotes and blocks transition from initiation complex to chain elongating ribosome. Isolated originally from a soil streptomycete. (18 Nov 1997) |
| streptomycin-spectinomycin adenylyltransferase | <enzyme> For radioenzymatic assay of spectinomycin Registry number: EC 2.7.7.- Synonym: strep-spect adtransferase (26 Jun 1999) |
| streptomycin units | G unit: equals 1 g of the crystalline material or about 1,000,000 S unit's, l unit: equal to 1000 S unit's, s unit: the amount of streptomycin which will inhibit the growth of a standard strain of Escherichia coli in 1 ml of nutrient broth or other suitable medium. (05 Mar 2000) |
| absolute unit | A unit whose value is constant regardless of place or time and not derived from dependent on gravitation. (05 Mar 2000) |
| alexin unit | The smallest amount (highest dilution) of complement that will cause haemolysis of a unit of red blood cells in the presence of a haemolysin unit. Synonym: alexin unit. (05 Mar 2000) |
| Allen-Doisy unit | The quantity of oestrogen capable of producing in a spayed mouse a characteristic change in the vaginal epithelium, namely, disappearance of leukocytes and appearance of cornified cells, as determined by a vaginal smear; equal approximately to one-half of an estrone unit. Synonym: mouse unit. (05 Mar 2000) |
| amboceptor unit | haemolysin unit |
| androgen unit | The androgenic activity of 100 ug (0.1 mg) of crystalline androsterone as assayed by the comb growth response in capons. (05 Mar 2000) |
| antigen unit | The smallest amount of antigen that, in the presence of specific antiserum, will fix 1 complement unit. (05 Mar 2000) |
| antitoxin unit | A unit expressing the strength or activity of an antitoxin; in general, determined with reference to a preserved standard preparation of antitoxin. See: L doses. (05 Mar 2000) |