Human Decorin HEK293 Overexpression Lysate: Product Information
This Human Decorin overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Decorin protein (Cat: 10189-H08H) from the overexpression lysate was verified.
A DNA sequence encoding the human Decorin (NP_001911.1) (Met 1-Lys 359) was expressed, with a polyhistidine tag at the C-terminus.
The recombinant human Decorin consists of 354 amino acids and has a predicted molecular mass of 39.4 kDa. As a result of different glycosylation, the apparent molecular mass of rhDecorin is approximately 45 kDa or higher in SDS-PAGE under reducing conditions.
Human Decorin HEK293 Overexpression Lysate: Usage Guide
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.
2. Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Western Blot (WB) Optimal dilutions/concentrations should be determined by the end user.
Human Decorin HEK293 Overexpression Lysate: Alternative Names
Human CSCD Overexpression Lysate; Human DSPG2 Overexpression Lysate; Human PG40 Overexpression Lysate; Human PGII Overexpression Lysate; Human PGS2 Overexpression Lysate; Human SLRR1B Overexpression Lysate
Decorin Background Information
Decorin is a ubiquitous small cellular or pericellular matrix proteoglycan and is closely related in structure to biglycan protein. It belongs to the small leucine-rich proteoglycan (SLRP) family and consists of a core protein and a covalently linked glycosaminoglycan chain which is either chondroitin sulfate (CS) or dermatan sulfate (DS). As a component of connective tissue, decorin interacts with several extracellular matrix components, such as type I collagen and fibronectin, and plays a role in matrix assembly. Decorin resides in the tumor microenvironment and affects the biology of various types of cancer by downregulating the activity of several receptors involved in cell growth and survival. Decorin binds to and modulates the signaling of the epidermal growth factor receptor and other members of the ErbB family of receptor tyrosine kinases. It exerts its antitumor activity by a dual mechanism: via inhibition of these key receptors through their physical downregulation coupled with attenuation of their signaling, and by binding to and sequestering TGFbeta. Decorin also modulates the insulin-like growth factor receptor and the low-density lipoprotein receptor-related protein 1, which indirectly affects the TGFbeta receptor pathway. Decorin plays significant roles in tissue development and assembly, as well as playing both direct and indirect signaling roles.
Mogyorsi A, et al. (1999) What is the role of decorin in diabetic kidney disease? Nephrol Dial Transplant. 14(5): 1078-81.
Reed CC, et al. (2002) The role of decorin in collagen fibrillogenesis and skin homeostasis. Glycoconj J. 19(4-5): 249-55.
Goldoni S, et al. (2008) Tumor microenvironment: Modulation by decorin and related molecules harboring leucine-rich tandem motifs. Int J Cancer. 123(11): 2473-9.
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