SH2 domain-containing protein.

T-cell surface glycoprotein CD3 epsilon chain; The CD3 complex mediates signal transduction, resulting in T- cell activation and proliferation. Required for normal immune responses.

Uncharacterized protein.

Ig_4 domain-containing protein.

Uncharacterized protein.

B-cell linker protein; Functions as a central linker protein, downstream of the B- cell receptor (BCR), bridging the SYK kinase to a multitude of signaling pathways and regulating biological outcomes of B-cell function and development. Plays a role in the activation of ERK/EPHB2, MAP kinase p38 and JNK. Modulates AP1 activation. Important for the activation of NF-kappa-B and NFAT. Plays an important role in BCR- mediated PLCG1 and PLCG2 activation and Ca(2+) mobilization and is required for trafficking of the BCR to late endosomes. However, does not seem to be required for pre-BCR-medi [...]

GRB2 related adaptor protein 2.

Proto-oncogene tyrosine-protein kinase LCK; Tyrosine kinase that plays an essential role for the selection and maturation of developing T-cell in the thymus and in mature T-cell function. Is constitutively associated with the cytoplasmic portions of the CD4 and CD8 surface receptors and plays a key role in T-cell antigen receptor(TCR)-linked signal transduction pathways (By similarity); Belongs to the protein kinase superfamily. Tyr protein kinase family. SRC subfamily.

Growth factor receptor-bound protein 2; Adapter protein that provides a critical link between cell surface growth factor receptors and the Ras signaling pathway. Belongs to the GRB2/sem-5/DRK family.