Recombinant Human Sonic Hedgehog/SHH Protein (aa 1-197, His Tag)

Sonic HedgeHog; also known as sonic hedgehog protein; belongs to the hedgehog family. It cannot be detected in adult tissues while can be found in fetal intestine; liver; lung; and kidney. Sonic HedgeHog is a protein that is vital in guding the early embryo. It has been associated as the major inductive signal in patterning of the ventral neural tube; the anterior-posterior limb axis; and the ventral somites. Sonic HedgeHog intercellular signal is essential for a various 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. Sonic HedgeHog binds to the patched receptor; which functions in association with smoothened; to activate the transcription of target genes. In the absence of sonic HedgeHog; patched receptor represses the constitutive signaling activity of smoothened. Sonic HedgeHog also regulates another factor; the gli oncogene. Defects in sonic hedgehog can cause microphthalmia isolated with coloboma type 5; triphalangeal thumb-polysyndactyly syndrome and holoprosencephaly type 3.

Measured by its ability to induce alkaline phosphatase production by C3H10T1/2 mouse embryonic fibroblast cells. The ED50 for this effect is typically 2-10 μg/mL.

Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.