Principle of the Assay: This ELISA kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to EPHA1. Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for EPHA1 and Avidin-Horseradish Peroxidase (HRP) conjugate is added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain EPHA1, biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm +/- 2 nm. The OD value is proportional to the concentration of EPHA1. You can calculate the concentration of EPHA1 in the samples by comparing the OD of the samples to the standard curve.
NCBI and Uniprot Product Information
NCBI Description
This gene belongs to the ephrin receptor subfamily of the protein-tyrosine kinase family. EPH and EPH-related receptors have been implicated in mediating developmental events, particularly in the nervous system. 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. The ephrin receptors are divided into 2 groups based on the similarity of their extracellular domain sequences and their affinities for binding ephrin-A and ephrin-B ligands. This gene is expressed in some human cancer cell lines and has been implicated in carcinogenesis. [provided by RefSeq, Jul 2008]
Uniprot Description
EphA1: a receptor tyrosine kinase. Receptor for members of the ephrin-A family. Binds with a low affinity to ephrin-A1. The Eph receptor tyrosine kinase family, the largest in the tyrosine kinase group, has fourteen members. They bind membrane-anchored ligands, ephrins, at sites of cell-cell contact, regulating the repulsion and adhesion of cells that underlie the establishment, maintenance, and remodeling of patterns of cellular organization. Eph signals are particularly important in regulating cell adhesion and cell migration during development, axon guidance, homeostasis and disease. EphA receptors bind to GPI-anchored ephrin-A ligands, while EphB receptors bind to ephrin-B proteins that have a transmembrane and cytoplasmic domain. Interactions between EphB receptor kinases and ephrin-B proteins transduce signals bidirectionally, signaling to both interacting cell types. Eph receptors and ephrins also regulate the adhesion of endothelial cells and are required for the remodeling of blood vessels. Misexpressed in several cancers, including upregulation in head and neck cancer, and downregulation in invasive breast cancer cell lines and glioblastoma
Protein type: Membrane protein, integral; Protein kinase, tyrosine (receptor); Protein kinase, TK; Kinase, protein; EC 2.7.10.1; TK group; Eph family
Chromosomal Location of Human Ortholog: 7q34
Cellular Component: integral to plasma membrane; plasma membrane
Molecular Function: transmembrane-ephrin receptor activity; protein kinase binding; ATP binding; protein kinase activity
Biological Process: axon guidance; positive regulation of angiogenesis; peptidyl-tyrosine phosphorylation; cell surface receptor linked signal transduction; somatic stem cell maintenance; protein amino acid autophosphorylation; positive regulation of stress fiber formation; positive regulation of cell proliferation; ephrin receptor signaling pathway; negative regulation of protein kinase activity; angiogenesis; positive regulation of cell-matrix adhesion; negative regulation of cell migration; positive regulation of cell migration
Research Articles on EPHA1
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Product Notes
The Chicken EPHA1 epha1 (Catalog #AAA2505285) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA2505285 ELISA Kit recognizes Chicken EPHA1. It is sometimes possible for the material contained within the vial of "EPHA1, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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