A change in morphology and behavior of an immune cell resulting from exposure to a specific antigen, mitogen, cytokine, cellular ligand, pathogen, or soluble factor.

Catalysis of the reaction: CDP + alcohol = CMP + phosphatidyl alcohol.

Catalysis of the formation of a hydroxyl group on a steroid by incorporation of oxygen from O2.

Catalysis of the reaction: obtusifoliol + 3 O2 + 3 NADPH + 3 H+ = 4-alpha-methyl-5-alpha-ergosta-8,14,24(28)-trien-3-beta-ol + formate + 3 NADP+ + 3 H2O.

The formation from simpler components of carnitine (hydroxy-trimethyl aminobutyric acid), a compound that participates in the transfer of acyl groups across the inner mitochondrial membrane.

Catalysis of the reaction: dicarboxylate(out) + Na+(out) = dicarboxylate(in) + Na+(in).

The addition of tubulin heterodimers to one or both ends of a microtubule.

The release of intracellular molecules (e.g. hormones, matrix proteins) contained within a membrane-bounded vesicle by fusion of the vesicle with the plasma membrane of a cell, requiring the presence of calcium ions.

Any process that modulates the frequency, rate or extent of exocytosis.

regulation of calcium ion-dependent exocytosis

Any process that modulates the frequency, rate or extent of calcium ion-dependent exocytosis.

The chemical reactions involving peptidyl-diphthamide, a modified histidine residue.

The posttranslational modification of peptidyl-histidine to 2'-(3-carboxamido-3-(trimethylammonio)propyl)-L-histidine, known as diphthamide, found in translation elongation factor eEF-2.

The phosphorylation by a protein of one of its own residues.

The gamma-carboxylation of peptidyl-glutamic acid; catalyzed by the vitamin K dependent gamma-glutamyl carboxylase.

major histocompatibility complex class II biosynthesis

The formation from simpler components of major histocompatibility protein class II.

regulation of major histocompatibility complex class II biosynthesis

Any process that modulates the frequency, rate or extent of the formation from simpler components of MHC class II.