LYVE-1 has been identified as a major receptor for HA (extracellular matrix glycosaminoglycan hyaluronan) on the lymph vessel wall. The deduced amino acid sequence of LYVE-1 predicts a 322-residue type I integral membrane polypeptide 41% similar to the CD44 HA receptor with a 212-residue extracellular domain containing a single Link module the prototypic HA binding domain of the Link protein superfamily. Like CD44, the LYVE-1 molecule binds both soluble and immobilized HA. However, unlike CD44, the LYVE-1 molecule colocalizes with HA on the luminal face of the lymph vessel wall and is completely absent from blood vessels. Hence, LYVE-1 is the first lymph-specific HA receptor to be characterized and is a uniquely powerful marker for lymph vessels themselves. A DNA sequence encoding the extracellular domain of human LYVE-1 (Met1 to Gly232) was fused to a C-terminal His-tag (6xHis) and expressed in insect cells. Based on N- terminal sequence analysis, the primary structure of recombinant mature sLYVE-1 starts at Ser24. Human sLYVE-1 contains 215 amino acids and has a calculated monomeric molecular mass of about 25 kDa but as a result of glycosylation, migrates at approximately 35-45 kDa under reducing conditions in SDS-PAGE.
Human LYVE1 expressed in Insect cells
Approx. 35-45 kDa
CAT# CSC-CTK0550-20 (20 μg); CAT# CSC-CTK0550-100 (100 μg)
Greater than 95% as determined by SDS-PAGE analysis.
Less than 1 EU/μg.
Lyophilized from a steril-filtered protein solution in PBS with no additives.
Please centrifuge product briefly before opening vial. The lyophilized protein should be reconstituted in sterile, ultrapure water or PBS to a concentration of not lower than 50 μg/ml. This solution can then be diluted into other aqueous buffers and stored at -20°C for future use.
Storage & Stability
The lyophilized protein, though stable at room temperature for up to 3 weeks, is best stored desiccated at -20°C. Reconstituted rHu sLYVE-1 should be used immediately or stored long-term in undiluted working aliquots at -20°C. For long-term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze / thaw cycles.
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