polymeric immunoglobulin binding

Binding to a J-chain-containing polymeric immunoglobulin of the IgA or IgM isotypes.

V(D)J recombination

The process in which immune receptor V, D, and J, or V and J gene segments, depending on the specific receptor, are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS).

T cell receptor V(D)J recombination

The process in which T cell receptor V, D, and J, or V and J gene segments, depending on the specific locus, are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS).

somatic diversification of T cell receptor genes by N region addition

The addition of variable numbers of random nucleotides by terminal deoxytransferase in the N regions of T cell receptor genes. N regions are found at the V-D, D-D, V-J, and D-J recombinational junctions, depending on the T cell receptor gene.

somatic diversification of immune receptors by N region addition

The addition of variable numbers of random nucleotides by terminal deoxytransferase in the N regions of heavy chain immunoglobulin and T cell receptor genes. N regions are found at the V-D, D-D, V-J, and D-J recombinational junctions, depending on the immune receptor gene.

hexameric IgM immunoglobulin complex

A circulating form of IgM consisting of a hexamer of IgM core units with a single J chain polypeptide.

pentameric IgM immunoglobulin complex

A circulating form of IgM consisting of a pentamer of IgM core units with a single J chain polypeptide.

immunoglobulin V(D)J recombination

The process in which immunoglobulin gene segments are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS). For immunoglobulin heavy chains V, D, and J gene segments are joined, and for immunoglobulin light chains V and J gene segments are joined.

prostaglandin J receptor activity

Combining with prostaglandin J (PGJ(2)), a metabolite of prostaglandin D (PGD(2)) to initiate a change in cell activity.

channel-forming ionophore activity

Enables transport of a solute across a membrane. This kind of transporter interacts much more weakly with the solute than the carrier does. It is an aqueous pore that extends across the membrane. It may change from closed to open and back. It transports faster than a carrier. It is always passive.