The chemical reactions and pathways resulting in the formation of lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent.

Any process in which an organism stops, prevents, or reduces the frequency, rate or extent of the immune response of the host organism; the immune response is any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat. The host is defined as the larger of the organisms involved in a symbiotic interaction.

The aggregation, arrangement and bonding together of a set of components, including (phenyl)phthiocerol, phthiodiolone, phthiotriol dimycocerosate and diphthioceranate, to form the DIM/DIP layer of the Actinobacterium-type cell wall.

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