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Name |
Wnt signaling pathway - Drosophila pseudoobscura pseudoobscura
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Description |
Wnt proteins are secreted morphogens that are required for basic developmental processes, such as cell-fate specification, progenitor-cell proliferation and the control of asymmetric cell division, in many different species and organs. There are at least three different Wnt pathways: the canonical pathway, the planar cell polarity (PCP) pathway and the Wnt/Ca2+ pathway. In the canonical Wnt pathway, the major effect of Wnt ligand binding to its receptor is the stabilization of cytoplasmic beta-catenin through inhibition of the bea-catenin degradation complex. Beta-catenin is then free to enter the nucleus and activate Wnt-regulated genes through its interaction with TCF (T-cell factor) family transcription factors and concomitant recruitment of coactivators. Planar cell polarity (PCP) signaling leads to the activation of the small GTPases RHOA (RAS homologue gene-family member A) and RAC1, which activate the stress kinase JNK (Jun N-terminal kinase) and ROCK (RHO-associated coiled-coil-containing protein kinase 1) and leads to remodelling of the cytoskeleton and changes in cell adhesion and motility. WNT-Ca2+ signalling is mediated through G proteins and phospholipases and leads to transient increases in cytoplasmic free calcium that subsequently activate the kinase PKC (protein kinase C) and CAMKII (calcium calmodulin mediated kinase II) and the phosphatase calcineurin.
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Class |
Environmental Information Processing; Signal transduction
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Pathway map |

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Other DBs |
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Organism |
Drosophila pseudoobscura pseudoobscura [GN: dpo]
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Gene |
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Compound |
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Reference |
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Authors |
Hatsell S, Rowlands T, Hiremath M, Cowin P. |
Title |
Beta-catenin and Tcfs in mammary development and cancer. |
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Reference |
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Authors |
Yang Y. |
Title |
Wnts and wing: Wnt signaling in vertebrate limb development and musculoskeletal morphogenesis. |
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Reference |
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Authors |
Kalderon D. |
Title |
Similarities between the Hedgehog and Wnt signaling pathways. |
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Reference |
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Authors |
Nusse R. |
Title |
Wnts and Hedgehogs: lipid-modified proteins and similarities in signaling mechanisms at the cell surface. |
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Reference |
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Authors |
Jope RS, Johnson GV. |
Title |
The glamour and gloom of glycogen synthase kinase-3. |
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Reference |
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Authors |
Veeman MT, Axelrod JD, Moon RT. |
Title |
A second canon. Functions and mechanisms of beta-catenin-independent Wnt signaling. |
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Reference |
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Authors |
Sun TQ, Lu B, Feng JJ, Reinhard C, Jan YN, Fantl WJ, Williams LT. |
Title |
PAR-1 is a Dishevelled-associated kinase and a positive regulator of Wnt signalling. |
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Reference |
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Authors |
Saito-Diaz K, Chen TW, Wang X, Thorne CA, Wallace HA, Page-McCaw A, Lee E |
Title |
The way Wnt works: Components and mechanism. |
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Reference |
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Authors |
Carethers JM |
Title |
Intersection of transforming growth factor-beta and Wnt signaling pathways in colorectal cancer and metastasis. |
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Reference |
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Authors |
Lin Z, Gao C, Ning Y, He X, Wu W, Chen YG |
Title |
The pseudoreceptor BMP and activin membrane-bound inhibitor positively modulates Wnt/beta-catenin signaling. |
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Reference |
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Authors |
Niehrs C |
Title |
The complex world of WNT receptor signalling. |
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Reference |
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Authors |
Abou Ziki MD, Mani A |
Title |
Wnt signaling, a novel pathway regulating blood pressure? State of the art review. |
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Reference |
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Authors |
He Y, Ki H, Kim H, Kim K |
Title |
delta-Catenin interacts with LEF-1 and negatively regulates its transcriptional activity. |
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Related pathway |
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KO pathway |
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