NCIt definition : Ephrin type-B receptor 4 (987 aa, 108 kDa) is encoded by the human EPHB4 gene. This
protein plays a role in ephrin-B binding, tyrosine phosphorylation, and signal transduction.;
NCIt note : The signaling pathways downstream of ephrin receptors are referred to as forward signaling
while the signaling pathways downstream of the ephrin ligands are referred to as reverse
signaling. (UniProt);