Gli3 Antibody

Gli-kruppel family member 3 is a member of the zinc finger family related to Kruppel, a protein family that is known to regulate development in Drosophila. The gene is expressed as an 8.5-kb mRNA in tissues such as testis, myometrium, placenta, and lung, and the protein product (relative molecular mass, 190,000D) shows sequence-specific DNA binding. Gli3 is homologous to the Drosophila cubitus interruptus (ci) gene product (Ci), which regulates the Patched (pct), Gooseberry (gsb), and Decapentaplegic (dpp) genes. PKA-dependent processing of vertebrate Gli3 in developing limb generates a potent repressor in a manner antagonized by apparent long-range signaling from posteriorly localized Sonic hedgehog protein. The high relative abundance and potency of Gli3 repressor suggested specialization of the protein and its products for negative hedgehog pathway regulation.