Human SHH Recombinant Protein (HEK293 Expression) — Tag Free
Price range: $100.00 through $2,800.00
HEK293 × Chaperone-Assisted Technology
Produced using our proprietary Z-Active® platform — HEK293 mammalian expression with chaperone-assisted folding for proper disulfide bonding, N-linked glycosylation, and 5–10× higher bioactivity vs Leading Suppliers.
Overview
Sonic Hedgehog (Shh) is expressed in embryonic tissues that are critical for the patterning of the developing central nervous system, somite, and limb. It is also involved in whisker, hair, foregut, tooth, and bone development. Shh regulates neural and hematopoietic stem cell fate and is important for thymocyte differentiation and proliferation as well as T cell determination. In adult tissue Shh is associated with cancer development and tissue remodeling following injury (1-3). Human Shh encodes a 462 amino acid (aa) precursor protein that is autocatalytically processed to yield a non-glycosylated 19 kDa N-terminal fragment (Shh-N) and a glycosylated 25 kDa C-terminal protein (Shh-C) (4). Shh-C, which is responsible for the intramolecular processing of Shh, is rapidly degraded following Shh proteolysis (5). Shh-N is highly conserved, sharing >98% aa identity between mouse, human, rat, canine, porcine, and chicken Shh-N. Shh-N can be palmitoylated at its N-terminal cysteine and modified by cholesterol addition at its C-terminus (6). These modifications contribute to the membrane tethering of Shh as well as its assembly into various sized multimers (6-9). Lipid modification and multimerization greatly increase Shh-N receptor binding affinity and signaling potency (5, 6, 8, 9). Monomeric and multimeric Shh can be released from the plasma membrane by the cooperative action of DISP1, SCUBE2, and TACE/ADAM17 (10-12). Modifications also extend the effective range of Shh functionality and are required for the development of protein gradients important in tissue morphogenesis (9, 13). Canonical signaling of Shh is mediated by a multicomponent receptor complex that includes Patched (PTCH1, PTCH2) and Smoothened (SMO) (14). The binding of Shh to PTCH releases the basal repression of SMO by PTCH. Shh activity can also be regulated through interactions with heparin, glypicans, and membrane-associated Hip (hedgehog interacting protein) (13, 15, 16).
Specifications
- Species: human
- Expression System: HEK293
- Sequence: Cys24-Gly197
- Tag: Tag Free
- Molecular Weight: 19.6 Kda
- Purity: > 95% by Tris-Bis PAGE;> 95% by SEC-HPLC
- Endotoxin: < 1 EU/μg of the protein by LAL method.
- UniProt/Swiss-Prot: Q15465
- Available Sizes: 10 µg, 50 µg, 1 mg
Bioactivity
Measured by its ability to induce alkaline phosphatase production by C3H10T1/2 mouse embryonic fibroblast cells.The EC50 for this effect is 0.1-0.4 µg/mL.
Formulation & Reconstitution
Formulation: 0.22 μm filtered solution of PBS, pH 7.4.
Reconstitution: 0.2 mg/mL in sterile PBS, pH7.4
Storage & Stability
Aliquot and store at -80°C. Avoid repeated freeze/thaw cycles.
Quality Assurance
Each lot is tested for purity (SDS-PAGE, SEC-HPLC), endotoxin levels (LAL method), and bioactivity. A Certificate of Analysis (COA) is provided with every order.
Safety Data Sheets & Documentation
Protocols & Support
Reconstitution Protocol
1. Briefly centrifuge the vial to collect lyophilized powder at the bottom.
2. Reconstitute in sterile deionized water or PBS to a concentration of 0.2–1.0 mg/mL.
3. Gently pipette up and down to dissolve. Do not vortex.
4. Aliquot and store at -20°C to -80°C. Avoid repeated freeze-thaw cycles.
Download Data Sheet
Complete product data sheet including batch-specific QC data, sequence information, and storage guidelines.
Download PDF Data Sheet
