About EphB1
Ephrin receptors and their ligands, the ephrins, mediate numerous developmental processes, particularly in the nervous system. 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. The Eph family of 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. Ephrin receptors make up the largest subgroup of the receptor tyrosine kinase (RTK) family. The protein encoded by this gene is a receptor for ephrin-B family members. [provided by RefSeq, Jul 2008]

About Alexa Fluor 350
Alexa Fluor™ 350 (AF350, Alexa 350) has an excitation peak at 346 nm and an emission peak at 442 nm, and is spectrally similar in size, brightness and application to AMCA, DyLight™ 350 and CF®350. Alexa 350 is most commonly used in flow cytometery and fluorescence microscopy applications.