Bacterial and fungal cellular macromolecules

Bacterial and fungal cellular macromolecules is a collective term used to describe the essential biological polymers—including proteins, DNA, RNA, and structural polysaccharides—that constitute the functional and physical framework of microorganisms. These macromolecules are responsible for vital processes such as genetic inheritance, enzymatic catalysis, and maintaining the integrity of the cell wall and membrane [1][3]. In pharmacology, this broad category is identified as the target for high-level disinfectants, sterilants, and certain chemical fixatives. These agents exert their antimicrobial effects by inducing non-specific, irreversible chemical modifications, such as covalent cross-linking or alkylation, across a wide range of molecular structures [2][4]. Because these reactions are not specific to microbial cells and can equally damage human tissues, these targets are primarily relevant for topical antisepsis or the sterilization of inanimate objects rather than systemic therapeutic intervention [3]. Sources: [1] DrugBank Online (Formaldehyde), [2] DrugBank Online (Glutaral), [3] CDC Guideline for Disinfection and Sterilization, [4] PubChem (Ethylene Oxide).

Other names

Microbial macromoleculesBacterial macromoleculesFungal macromoleculesCellular proteins and nucleic acids

Drugs targeting these macromolecules typically act through non-specific chemical reactions such as alkylation, cross-linking, or oxidation. For example, aldehydes like glutaraldehyde react with the amino groups of proteins and nucleic acids to form covalent cross-links, effectively fixing the cellular structure and halting all biological activity [2][3]. Ethylene oxide acts as an alkylating agent, replacing hydrogen atoms within organic groups (e.g., -COOH, -NH2, -SH) with alkyl groups, which disrupts DNA replication and enzymatic function [3][4].