Galectin 1 (LGALS1) Human Active Protein

Galectin-1: May regulate apoptosis, cell proliferation and cell differentiation. Binds beta-galactoside and a wide array of complex carbohydrates. Inhibits CD45 protein phosphatase activity and therefore the dephosphorylation of Lyn kinase. Homodimer. Binds LGALS3BP. Interacts with CD2, CD3, CD4, CD7, CD43 and CD45. Interacts with laminin (via poly-N- acetyllactosamine). Expressed in placenta, maternal decidua and fetal membranes. Within placenta, expressed in trophoblasts, stromal cells, villous endothelium, syncytiotrophoblast apical membrane and villous stroma. Within fetal membranes, expressed in amnion, chorioamniotic mesenchyma and chorion. Expressed in cardiac, smooth, and skeletal muscle, neurons, thymus, kidney and hematopoietic cells.

Protein type: Cell adhesion

Chromosomal Location of Human Ortholog: 22q13.1

Cellular Component: extracellular matrix; extracellular space; proteinaceous extracellular matrix; cell surface; cytoplasm; intracellular; nucleus

Molecular Function: protein binding; signal transducer activity; protein homodimerization activity; lactose binding; laminin binding; galactoside binding; glycoprotein binding

Biological Process: myoblast differentiation; response to drug; regulation of apoptosis; plasma cell differentiation; positive regulation of I-kappaB kinase/NF-kappaB cascade; apoptosis; T cell costimulation; positive regulation of erythrocyte aggregation; response to axon injury; signal transduction; multicellular organismal response to stress