Human Noggin/NOG HEK293 Overexpression Lysate: Product Information
This Human Noggin/NOG overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Noggin/NOG protein (Cat: 10267-H08H) from the overexpression lysate was verified.
A DNA sequence encoding the human Noggin precursor (NP_005441.1) (Met 1-Cys 232) was fused with a polyhistidine tag at the C-terminus.
The recombinant human Noggin comprises 216 amino acids after removal of the signal peptide and has a predicted molecular mass of 24.6 kDa. As a result of glycosylation, rhNoggin migrates as an approximately 30 kDa bnd in SDS-PAGE under reducing conditions.
Human Noggin/NOG 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 Noggin/NOG HEK293 Overexpression Lysate: Alternative Names
Human Noggin Overexpression Lysate; Human SYM1 Overexpression Lysate; Human SYNS1 Overexpression Lysate
Noggin/NOG Background Information
Noggin is a secreted protein involved at multiple stages of vertebrate embryonic development including neural induction and is known to exert its effects by inhibiting the bone morphogenetic protein (BMP)-signaling pathway. It binds several BMPs with very high (picomolar) affinities, with a marked preference for BMP2 and BMP4 over BMP7. By binding tightly to BMPs, Noggin prevents BMPs from binding their receptors. Noggin binds the bone morphogenetic proteins (BMP) such as BMP-4 and BMP-7, and inhibits BMP signaling by blocking the molecular interfaces of the binding epitopes for both type I and type II receptors. Interaction of BMP and its antagonist Noggin governs various developmental and cellular processes, including embryonic dorsal-ventral axis, induction of neural tissue, formation of joints in the skeletal system and neurogenesis in the adult brain. Noggin plays a key role in neural induction by inhibiting BMP4, along with other TGF-β signaling inhibitors such as chordin and follistatin. Mouse knockout experiments have demonstrated that noggin also plays a crucial role in bone development, joint formation, and neural tube fusion.
Zimmerman LB, et al. (1996) The Spemann organizer signal noggin binds and inactivates bone morphogenetic protein 4. Cell. 86(4): 599-606.
Chandramore K, et al. (2010) Cloning of noggin gene from hydra and analysis of its functional conservation using Xenopus laevis embryos. Evol Dev. 12(3): 267-74.
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