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Costal2, a novel kinesin-related protein in the Hedgehog signaling pathway.

Cell | Jul 25, 1997

http://www.ncbi.nlm.nih.gov/pubmed/9244298

The Hedgehog (HH) signaling proteins control cell fates and patterning during animal development. In Drosophila, HH protein induces the transcription of target genes encoding secondary signals such as DPP and WG proteins by opposing a repressor system. The repressors include Costal2, protein kinase A, and the HH receptor Patched. Like HH, the kinase Fused and the transcription factor Cubitus interruptus (CI) act positively upon targets. Here we show that costal2 encodes a kinesin-related protein that accumulates preferentially in cells capable of responding to HH. COS2 is cytoplasmic and binds microtubules. We find that CI associates with COS2 in a large protein complex, suggesting that COS2 directly controls the activity of CI.

Pubmed ID: 9244298 RIS Download

Mesh terms: Animals | Animals, Genetically Modified | Base Sequence | Cloning, Molecular | DNA-Binding Proteins | Drosophila | Drosophila Proteins | Embryo, Nonmammalian | Gene Expression Regulation, Developmental | Germ-Line Mutation | Hedgehog Proteins | Insect Proteins | Kinesin | Microtubules | Molecular Sequence Data | Rats | Sequence Homology, Amino Acid | Signal Transduction | Transcription Factors | Zinc Fingers

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