(1′,2′)-烟碱-1′氧化物是一种存在于烟草叶片、茎部和根部的生物碱氧化物[1]。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
烟碱 | nicotin | 54-11-5 | C10H14N2 | 162.235 |
(+/-)-尼古丁 | 3-(1-methyl-pyrrolidin-2-yl)-pyridine | 22083-74-5 | C10H14N2 | 162.235 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
N-甲酰基降烟碱 | N'-formylnornicotine | 3000-81-5 | C10H12N2O | 176.218 |
吡啶吡咯酮 | cotinine | 486-56-6 | C10H12N2O | 176.218 |
原烟碱 | nornicotine | 494-97-3 | C9H12N2 | 148.208 |
A DNA clone from Rhodococcus equi conferring low-level rifampin resistance through the ability to inactivate this antibiotic via its decomposition was identified. The iri (inactivation of rifampin) gene consisted of an open reading frame of 1,437 bp encoding a 479-amino-acid sequence strongly resembling those of monooxygenases acting upon phenolic compounds or involved in polyketide antibiotic synthesis. When expressed in Escherichia coli, the gene conferred resistance to a > 50-micrograms/ml concentration of the drug.