transmembrane receptor protein tyrosine phosphatase activity

The formation of a protein tetramer, a macromolecular structure consisting of four noncovalently associated identical or nonidentical subunits.

The series of events required to receive a sensory light stimulus, convert it to a molecular signal, and recognize and characterize the signal.

Combining with an ephrin to initiate a change in cell activity.

sensory perception of mechanical stimulus

The series of events required to receive a sensory mechanical stimulus, convert it to a molecular signal, and recognize and characterize the signal.

epidermal growth factor receptor activity

transforming growth factor-alpha receptor activity

Combining with an epidermal growth factor to initiate a change in cell activity.

fibroblast growth factor receptor activity

Combining with fibroblast growth factor to initiate a change in cell activity.

hepatocyte growth factor receptor activity

Combining with hepatocye growth factor to initiate a change in cell activity.

The resumption of the mitotic cell division cycle by cells that were in a quiescent or other non-dividing state.

A vacuole that is maintained at an acidic pH and which contains degradative enzymes, including a wide variety of acid hydrolases.

The chemical reactions involving a ribonucleoside diphosphate, a glycosamine consisting of a base linked to a ribose sugar esterified with diphosphate on its glycose moiety.

The chemical reactions involving a deoxyribonucleoside diphosphate, a glycosamine consisting of a base linked to a deoxyribose sugar esterified with diphosphate on its glycose moiety.

The chemical reactions involving a cyclic nucleotide, a nucleotide in which the phosphate group is in diester linkage to two positions on the sugar residue.

negative regulation of lymphocyte activation

Any process that stops, prevents or reduces the rate of lymphocyte activation.

positive regulation of lymphocyte activation

Any process that activates or increases the rate of lymphocyte activation.