Anti-Eph receptor A2/EPHA2 Antibody Picoband®

EPHA2 (ephrin type-A receptor 2) also known as ECK, is a protein that in humans is encoded by the EPHA2 gene. This gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. Receptors in the EPH subfamily typically have a single kinase domain and an extracellular region containing a Cys-rich domain and 2 fibronectin type III repeats. By somatic cell hybrid analysis and fluorescence in situ hybridization, the EPHA2 gene is mapped to chromosome 1p36.1. EPHA2 was readily detectable in human lens fiber cells using immunoblot and immunohistochemistry. EGFR and EPHA2 mediated HCV entry by regulating CD81 -claudin-1 (CLDN1) coreceptor associations and viral glycoprotein-dependent membrane fusion.

Expressed in brain and glioma tissue and glioma cell lines (at protein level) . Expressed most highly in tissues that contain a high proportion of epithelial cells, e.g. skin, intestine, lung, and ovary.

Angiogenesis, Axonal Guidance Proteins, Cardiovascular, Cell Type Marker, Growth and Development, Intracellular Signaling, Kinases, Neurology Process, Neuron Marker, Neuroscience, Neurotransmission, Receptors / Channels

Receptor tyrosine kinase which binds promiscuously membrane-bound ephrin-A family ligands residing on adjacent cells, leading to contact-dependent biional signaling into neighboring cells. The signaling pathway downstream of the receptor is referred to as forward signaling while the signaling pathway downstream of the ephrin ligand is referred to as reverse signaling. Activated by the ligand ephrin-A1/EFNA1 regulates migration, integrin-mediated adhesion, proliferation and differentiation of cells. Regulates cell adhesion and differentiation through DSG1/desmoglein-1 and inhibition of the ERK1/ERK2 (MAPK3/MAPK1, respectively) signaling pathway. May also participate in UV radiation-induced apoptosis and have a ligand- independent stimulatory effect on chemotactic cell migration. During development, may function in distinctive aspects of pattern formation and subsequently in development of several fetal tissues. Involved for instance in angiogenesis, in early hindbrain development and epithelial proliferation and branching morphogenesis during mammary gland development. Engaged by the ligand ephrin-A5/EFNA5 may regulate lens fiber cells shape and interactions and be important for lens transparency development and maintenance. With ephrin-A2/EFNA2 may play a role in bone remodeling through regulation of osteoclastogenesis and osteoblastogenesis.

1. Ganju, P., Shigemoto, K., Brennan, J., Entwistle, A., Reith, A. D. The Eck receptor tyrosine kinase is implicated in pattern formation during gastrulation, hindbrain segmentation and limb development. Oncogene 9: 1613-1624, 1994. 2. Jun, G., Guo, H., Klein, B. E. K., Klein, R., Wang, J. J., Mitchell, P., Miao, H., Lee, K. E., Joshi, T., Buck, M., Chugha, P., Bardenstein, D., and 9 others. EPHA2 is associated with age-related cortical cataract in mice and humans. PLoS Genet. 5: e1000584, 2009. 3. Khounlotham, M., Subbian, S., Smith, R., III, Cirillo, S. L. G., Cirillo, J. D. Mycobacterium tuberculosis interferes with the response to infection by inducing the host EphA2 receptor. J. Infect. Dis. 199: 1797-1806, 2009.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.