Interacting selectively with two or more protein molecules, or a protein and another macromolecule or complex, simultaneously, thereby physically linking the bound proteins or complexes to each other.

regulation of progression through cell cycle

Any process that modulates the rate or extent of progression through the cell cycle.

The process whose specific outcome is the progression of the male gonad over time, from its formation to the mature structure.

The process by which antigen-presenting cells express foreign antigen on their cell surface in a form recognizable by lymphocytes.

Increases the rate of GTP hydrolysis by the GTPase Rac.

A point in the eukaryotic cell cycle where progress through the cycle can be halted until conditions are suitable for the cell to proceed to the next stage.

The process whose specific outcome is the progression of the female gonad over time, from its formation to the mature structure.

antigen processing, endogenous antigen via MHC class I

antigen processing, endogenous antigen via major histocompatibility complex class I

The processes that result in the fragmentation by proteolysis of endogenous antigens and the association of the resulting peptides with MHC class I molecules.

Rac guanyl-nucleotide exchange factor activity

Stimulates the hydrolysis and exchange of guanyl nucleotides by the GTPase Rac.

antigen processing, exogenous antigen via MHC class II

antigen processing, exogenous antigen via major histocompatibility complex class II

The processes that result in the fragmentation by proteolysis of exogenous antigens and the association of the resulting peptides with MHC class II molecules.

DNA damage response, signal transduction resulting in cell cycle arrest

A signal transduction pathway, induced by DNA damage, that blocks cell cycle progression (in G1, G2 or metaphase) or slows the rate at which S phase proceeds.

Modulates the activity of a protein kinase, an enzyme which phosphorylates a protein.

Any small opening in a membrane that allows the passage of gases and/or liquids.