The chemical reactions and pathways involving lipoxin B4. Lipoxin B4 is a C20 hydroxy fatty acid having (5S)-, (14R)- and (15S)-hydroxy groups as well as (6E)- (8Z)-, (10E)- and (12E)-double bonds.

The chemical reactions and pathways resulting in the formation of lipoxin A4. Lipoxin A4 is a C20 hydroxy fatty acid having (5S)-, (6R)- and (15S)-hydroxy groups as well as (7E)- (9E)-, (11Z)- and (13E)-double bonds.

The chemical reactions and pathways resulting in the breakdown of the epipolythiodioxopiperazine gliotoxin, a poisonous substance produced by some species of fungi.

OBSOLETE. The process in which a signal causes activation of T cell receptor signaling.

Migration of one of the four nuclei at each pole of the eight-nucleate embryo sac, to the center of the cell.

Migration of the nuclei of the two-nucleate embryo sac to opposite poles of the cell.

OBSOLETE. Binding of a diffusible ligand to a T cell receptor as part of a signaling process.

OBSOLETE. The process in which an amino acid signal causes activation of a receptor.

OBSOLETE. The process in which a neurotransmitter signal causes activation of a receptor.

OBSOLETE. Any process that initiates the dopamine receptor protein signaling pathway through stimulation of the dopamine receptor.

Any process that modulates the frequency, rate or extent of gene expression as a consequence of a process in which a signal is released and/or conveyed from one location to another.

OBSOLETE. The process in which binding of an MHC complex to T cell receptor causes activation of T cell receptor signaling.

OBSOLETE. Any process that activates, maintains or increases the frequency, rate or extent of the initiation of T cell receptor signaling.

OBSOLETE. The process in which signal transmission via a diffusible molecule is initiated by a T cell.

OBSOLETE. The process in which a signal is conveyed via a diffusible molecule.

OBSOLETE. Any process that modulates the frequency, rate or extent of the initiation of T cell receptor signaling.