Sonic Hedgehog Active Protein | Shh active protein
Mouse Sonic Hedgehog
NCBI and Uniprot Product Information
Uniprot Description
Function: Binds to the patched (PTC) receptor, which functions in association with smoothened (SMO), to activate the transcription of target genes. In the absence of SHH, PTC represses the constitutive signaling activity of SMO. Also regulates another target, the gli oncogene. Intercellular signal essential for a variety of patterning events during development: signal produced by the notochord that induces ventral cell fate in the neural tube and somites, and the polarizing signal for patterning of the anterior-posterior axis of the developing limb bud. Displays both floor plate- and motor neuron-inducing activity. The threshold concentration of N-product required for motor neuron induction is 5-fold lower than that required for floor plate induction
By similarity. Ref.6
Subunit structure: Interacts with HHATL/GUP1 which negatively regulates HHAT-mediated palmitoylation of the SHH N-terminus. N-product is active as a multimer. Interacts with BOC and CDON. Interacts with HHIP. Ref.9 Ref.11 Ref.13 Ref.14 Ref.15
Subcellular location: Sonic hedgehog protein C-product: Secreted › extracellular space. Note: The C-terminal peptide diffuses from the cell. Ref.9Sonic hedgehog protein N-product: Cell membrane; Lipid-anchor. Note: The N-product either remains associated with lipid rafts at the cell surface, or forms freely diffusible active multimers with its hydrophobic lipid-modified N- and C-termini buried inside. Ref.9
Tissue specificity: Expressed in a number of embryonic tissues including the notochord, ventral neural tube, floor plate, lung bud, zone of polarizing activity and posterior distal mesenchyme of limbs. In the adult, expressed in lung and neural retina.
Developmental stage: First detectable during gastrulation.
Induction: By retinoic acid.
Domain: The sonic hedgehog protein N-product binds calcium and zinc ions; this stabilizes the protein fold and is essential for protein-protein interactions mediated by this domain. Ref.13 Ref.14 Ref.15
Post-translational modification: The C-terminal domain displays an autoproteolysis activity and a cholesterol transferase activity. Both activities result in the cleavage of the full-length protein and covalent attachment of a cholesterol moiety to the C-terminal of the newly generated N-terminal fragment (N-product). The N-product is the active species in both local and long-range signaling, whereas the C-product has no signaling activity.Cholesterylation is required for N-product targeting to lipid rafts and multimerization.N-palmitoylation of Cys-25 by HHAT is required for N-product multimerization and full activity. Ref.8 Ref.9
Miscellaneous: Mice overexpressing Shh display digit duplications in both forelimbs and hindlimbs.
Sequence similarities: Belongs to the hedgehog family.
Research Articles on Shh
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Product Notes
The Shh shh (Catalog #AAA692041) is an Active Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. The Mouse Sonic Hedgehog reacts with Mouse and may cross-react with other species as described in the data sheet. The amino acid sequence is listed below: IVIGPGRGFG KRRHPKKLTP LAYKQFIPNV AEKTLGASGR YEGKIT RNSE RFKELTPNYN PDIIFKDEEN TGADRLMTQR CKDKLNALAI S VMNQWPGVK LRVTEGWDED GHHSEESLHY EGRAVDITTS DRDRSKY GML ARLAVEAGFD WVYYESKAHI HCSVKAENSV AAKSGG. It is sometimes possible for the material contained within the vial of "Sonic Hedgehog, Active Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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