Localization of chlortetracycline and vitamin B12 in subcellular fractions of Streptomyces aureofaciens.
D002751:Chlortetracycline / Q000032:analysis*; D013302:Streptomyces / Q000032:analysis*; D014461:Ultracentrifugation; D014805:Vitamin B 12 / Q000032:analysis*
D014805:Vitamin B 12; D002751:Chlortetracycline