Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.

The chemical reactions and pathways involving S-adenosylmethionine, S-(5'-adenosyl)-L-methionine, an important intermediate in one-carbon metabolism.

Any process in which an organism modulates the frequency, rate or extent of the innate immune response of the host organism; the innate immune response is the host's first line of defense against infection. The host is defined as the larger of the organisms involved in a symbiotic interaction.

A cellular process that results in the biosynthesis of constituent macromolecules, assembly, and arrangement of constituent parts of a cell wall of the type found in Actinobacteria. The cell wall is the rigid or semi-rigid envelope lying outside the cell membrane. Actinobacterial cell walls contain characteristic mycolic acids, of which some are covalently linked to the cell wall peptidoglycan and others accumulate at the cell surface.

The chemical reactions and pathways resulting in the formation of mycolic acids, beta-hydroxy fatty acids with a long alpha-alkyl side chain.

The aggregation, arrangement and bonding together of a set of components, including arabinogalactan mycolate and trehalose dimycolate, to form the mycolate layer of the Actinobacterium-type cell wall. The mycolate layer is physically attached to the peptidoglycan layer.

The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.