PenicillinsPenicillin GPenicillin VPenicillin ResistancePenicillin G ProcainePenicillin AmidaseBacteriaPenicillin G BenzathineAnti-Bacterial AgentsMicrobial Sensitivity TestsStreptococcus pneumoniaePenicillin-Binding ProteinsPenicillinaseDrug DiscoveryGram-Negative BacteriaGram-Positive BacteriaMuramoylpentapeptide CarboxypeptidaseAmpicillinBacterial ProteinsPeptidyl TransferasesCephalosporinsHexosyltransferasesBacteria, AnaerobicStreptococcal InfectionsPneumococcal InfectionsNeisseria gonorrhoeaeMolecular Sequence DataEscherichia coliStreptococcusDNA, BacterialDrug Resistance, MicrobialCloxacillinDrug HypersensitivityErythromycinGonorrheabeta-LactamsCulture MediaAcremoniumCeftriaxoneDrug Resistance, BacterialCefotaximeSequence Analysis, DNABacteria, AerobicPhylogenyRNA, Ribosomal, 16Sbeta-LactamasesCephaloridinePharyngitisSpectinomycinPeptidoglycanStaphylococcusGentamicinsProteusLactamsStaphylococcus aureusCarbenicillinCephalothinPenicilliumOxacillinTetracyclineEnterobacteriaceaeEndocarditis, BacterialStreptomycinTonsillitisGenes, BacterialClindamycinAmino Acid SequenceNeurosyphilisSerotypingDNA, RibosomalPenicillanic AcidBacterial InfectionsAnti-Infective AgentsChloramphenicolAmoxicillinStreptococcus pyogenesProbenecidMutationEnterococcus faecalisStreptococcus sanguisSyphilisCefuroximeWater MicrobiologyBase SequenceColony Count, MicrobialViridans StreptococciNeisseria meningitidisCell WallCarrier ProteinsGram-Negative Anaerobic BacteriaDicloxacillinMacrolidesGene Expression Regulation, BacterialGram-Negative Aerobic BacteriaSpecies SpecificityBacteroidesMethicillinVancomycinBacterial Physiological PhenomenaAmidohydrolases