Related Product Information for anti-EFNA1 antibody
EPH-related receptor tyrosine kinase ligand 1 (abbreviated as Ephrin-A1) also known as ligand of eph-related kinase 1 or EFNA1, is a member of the ephrin (EPH) family. The Eph family receptor interacting proteins (ephrins) are a family of proteins that serve as the ligands of the Eph receptor, which compose the largest known subfamily of receptor protein-tyrosine kinases (RTKs). Ephrin-A1/EFNA1 and its Eph family of receptor tyrosine kinases are expressed by cells of the SVZ. Ephrin subclasses are further distinguished by their mode of attachment to the plasma membrane: ephrin-A ligands bind EphA receptors and are anchored to the plasma membrane via a glycosylphosphatidylinositol (GPI) linkage, whereas ephrin-B ligands bind EphB receptors and are anchored via a transmembrane domain. An exception is the EphA4 receptor, which binds both subclasses of ephrins. Ephrin-A1 and one of its receptor EphA2 were expressed in xenograft endothelial cells and also tumor cells and play a role in human cancers, at least in part by influencing tumor neovascularization.
References
Deroanne C, et al. (2003) EphrinA1 inactivates integrin-mediated vascular smooth muscle cell spreading via the Rac/PAK pathway. J Cell Sci. 116(7): 1367-76.Ojima T, et al. (2006) EphrinA1 inhibits vascular endothelial growth factor-induced intracellular signaling and suppresses retinal neovascularization and blood-retinal barrier breakdown. Am J Pathol. 168(1): 331-9.Wu D, et al. (2004) Prognostic value of EphA2 and EphrinA-1 in squamous cell cervical carcinoma. Gynecol Oncol. 94(2): 312-9.
NCBI Description
This gene encodes a member of the ephrin (EPH) family. The ephrins and EPH-related receptors comprise the largest subfamily of receptor protein-tyrosine kinases and have been implicated in mediating developmental events, especially in the nervous system and in erythropoiesis. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. This gene encodes an EFNA class ephrin which binds to the EPHA2, EPHA4, EPHA5, EPHA6, and EPHA7 receptors. Two transcript variants that encode different isoforms were identified through sequence analysis. [provided by RefSeq, Jul 2008]
Uniprot Description
EFNA1: Cell surface GPI-bound ligand for Eph receptors, a family of receptor tyrosine kinases which are crucial for migration, repulsion and adhesion during neuronal, vascular and epithelial development. Binds promiscuously Eph receptors residing on adjacent cells, leading to contact-dependent bidirectional signaling into neighboring cells. Plays an important role in angiogenesis and tumor neovascularization. The recruitment of VAV2, VAV3 and PI3-kinase p85 subunit by phosphorylated EPHA2 is critical for EFNA1-induced RAC1 GTPase activation and vascular endothelial cell migration and assembly. Exerts anti-oncogenic effects in tumor cells through activation and down-regulation of EPHA2. Activates EPHA2 by inducing tyrosine phosphorylation which leads to its internalization and degradation. Acts as a negative regulator in the tumorigenesis of gliomas by down-regulating EPHA2 and FAK. Can evoke collapse of embryonic neuronal growth cone and regulates dendritic spine morphogenesis. Belongs to the ephrin family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Cell development/differentiation; Tumor suppressor; Membrane protein, GPI anchor; Ligand, receptor tyrosine kinase
Chromosomal Location of Human Ortholog: 1q21-q22
Cellular Component: anchored to plasma membrane; integral to plasma membrane; extracellular region; plasma membrane
Molecular Function: protein binding; ephrin receptor binding; receptor binding
Biological Process: axon guidance; cell migration; activation of MAPK activity; notochord formation; negative regulation of transcription from RNA polymerase II promoter; regulation of blood vessel endothelial cell migration; regulation of axonogenesis; regulation of angiogenesis; positive regulation of peptidyl-tyrosine phosphorylation; regulation of cell adhesion mediated by integrin; cell-cell signaling; ephrin receptor signaling pathway; angiogenesis; regulation of peptidyl-tyrosine phosphorylation
Product Notes
The EFNA1 efna1 (Catalog #
AAA8104224) is an Antibody produced from Mouse and is intended for research purposes only. The product is available for immediate purchase. The Anti-Ephrin-A1 Antibody, Mouse Monoclonal reacts with Human and may cross-react with other species as described in the data sheet. AAA Biotech's Ephrin-A1 can be used in a range of immunoassay formats including, but not limited to, ELISA (EIA), ELISA (EIA) (Cap). ELISA: 1:1000-1:2000 ELISA (Cap): 1:250-1:2000 ELISA (Cap): This antibody will detect Human Ephrin-A1/EFNA1 in ELISA pair set. In a sandwich ELISA, it can be used as capture antibody when paired with. Researchers should empirically determine the suitability of the EFNA1 efna1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process.
It is sometimes possible for the material contained within the vial of
"Ephrin-A1, Monoclonal Antibody" to become dispersed throughout the inside of
the vial, particularly around the seal of said vial, during shipment and storage. We always
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