MEPE, ED (Matrix Extracellular Phosphoglycoprotein, Osteoblast/Osteocyte Factor 45, OF45)

Size

£825.00

SKU:: M2904-75
Purity:: Purified by immunoaffinity chromatography.
Storage Conditions:: -20°C
Supplier:: United States Biological
Host:: Sheep
Immunogen:: Recombinant protein corresponding to aa17-433 at the etracellular domain of mouse MEPE expressed in NSO cells. Species Sequence Homology: rat; 77%, human; 57%
Format:: Supplied as a lyophilized powder from PBS, 5% trehalose. Reconstitute with 500ul sterile PBS.
Extra Details:: MEPE (matrix extracellular phosphoglycoprotein; also OF45) is a 56-58kD member of the SIBLING protein family. It is expressed by osteocytes, osteoblasts, odontoblasts and chondrocytes. MEPE is found both intra- and extracellularly. Within the cell, it binds to CHK1. This protects CHK1 from degradation, and the cell from DNA damage. Extracellularly, it binds to Phex, which protects it from cathepsin B proteolysis. Undegraded, it promotes bone vascularization and blocks bone resorption. Following cleavage after Arg410 (in mouse), a 2kD ASARM fragment is generated that, when phosphorylated, blocks mineralization. Mature mouse MEPE is 417aa in length. It contains an RGD motif and ASARM domain (aa416-433). In addition to its 57kD form, 70kD, 42-45kD and 30-35kD forms of mouse MEPE have been reported. Whether they are cleavage forms or products of glycosylation is unclear. Over aa147-433, mouse MEPE shares 77% and 57% aa identity with rat and human MEPE, respectively. Applications: Suitable for use in Direct ELISA and Western Blot. Other applications not tested. Recommended Dilutions: Western Blot: 1ug/ml. Optimal dilutions to be determined by the researcher. Storage and Stability: Lyophilized and reconstituted products are stable for 12 months after receipt at -20°C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Shipping Conditions:: Blue Ice