Posttranscriptional addition of a methyl group to either a nucleotide or 2'-O ribose in an polyribonucleotide. Usually uses S-adenosylmethionine as a cofactor.

Any process that modulates the frequency, rate or extent of T cell proliferation.

Interacting selectively with a nuclear localization sequence, a specific peptide sequence that acts as a signal to localize the protein within the nucleus.

The breakdown into simpler components of aromatic compounds, any substance containing an aromatic carbon ring.

Combining with orexin to initiate a change in cell activity.

Combining with UTP or UDP to initiate a change in cell activity.

Naturally occurring peptide that is an opioid (any non-alkaloid having an opiate-like effect that can be reversed by naloxone or other recognized morphine antagonist). These include Leu- and Met-enkephalin, dynorphin and neoendorphin, alpha, beta, gamma and delta endorphins formed from beta-lipotropin, various pronase-resistant peptides such as beta casamorphin, and other peptides whose opiate-like action seems to be indirect.

The formation from simpler components of prostaglandins, any of a group of biologically active metabolites which contain a cyclopentane ring.

Catalysis of the reversible transfer of an amidino group to an acceptor.

Catalysis of the reaction: L-arginine + glycine = L-ornithine + guanidinoacetate.

A sodium channel in a cell membrane whose opening is governed by the membrane potential.

The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.

The change in morphology and behavior of a mature or immature B cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific.

A change in morphology and behavior of a macrophage resulting from exposure to a cytokine, chemokine, cellular ligand, pathogen, or soluble factor.

Interacting selectively with beta-amyloid peptide/protein and/or its precursor.