An intermediate stage of pneumococcus transformation as revealed by the effect of 8-azaguanine.
D000963:Antimetabolites / Q000494:pharmacology*; D001375:Azaguanine; D011687:Purines / Q000494:pharmacology*; D013296:Streptococcus pneumoniae / Q000235:genetics*
D000963:Antimetabolites; D011687:Purines; D001375:Azaguanine; C030985:purine
ANTIMETABOLITES/pharmacology; DIPLOCOCCUS PNEUMONIAE/genetics; PURINES/pharmacology