antigen presentation, exogenous antigen via MHC class I

antigen presentation, exogenous antigen via major histocompatibility complex class I

The process by which antigen-presenting cells express foreign antigen on their cell surface as part of the MHC class I for recognition by lymphocytes.

antigen presentation, exogenous antigen via MHC class II

antigen presentation, exogenous antigen via major histocompatibility complex class II

The process by which antigen-presenting cells express foreign antigen on their cell surface as part of the MHC class II for recognition by lymphocytes.

Any of the processes involved in the maintenance of an internal equilibrium within an organism or cell.

Any of the processes involved in the maintenance of an internal equilibrium of glucose within an organism or cell.

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 starvation stimulus, deprivation of nourishment.

A change in the behavior of an organism as a result of deprivation of nourishment.

voltage-gated anion channel porin activity

voltage-dependent anion channel porin activity

The response of an organism to a perceived external threat.

The region between the inner (cytoplasmic) and outer membrane (Gram-negative bacteria) or inner membrane and cell wall (fungi).

Any of the small, heterogeneous, artifactual, vesicular particles that are formed when some cells are homogenized.

Interacting selectively with cholesterol (cholest-5-en-3-beta-ol); the principal sterol of vertebrates and the precursor of many steroids, including bile acids and steroid hormones.

A membrane bounded organelle, specialized for the storage and secretion various substances (surfactant phospholipids, glycoproteins and acid phosphates) which are arranged in the form of tightly packed, concentric, membrane sheets or lamellae. Has some similar properties to, but is distinct from, a lysosome.

Enables the directed movement of putrescine into, out of, within or between cells. Putrescine is 1,4-diaminobutane, the polyamine formed by decarboxylation of ornithine and the metabolic precursor of spermidine and spermine.