| Structural highlights
Disease
[DCC_HUMAN] Defects in DCC are the cause of mirror movements type 1 (MRMV1) [MIM:157600]. A disorder characterized by contralateral involuntary movements that mirror voluntary ones. While mirror movements are occasionally found in young children, persistence beyond the age of 10 is abnormal. Mirror movements occur more commonly in the upper extremities.[1]
Function
[NET1_HUMAN] Netrins control guidance of CNS commissural axons and peripheral motor axons. Its association with either DCC or some UNC5 receptors will lead to axon attraction or repulsion, respectively. It also serve as a survival factor via its association with its receptors which prevent the initiation of apoptosis. Involved in tumorigenesis by regulating apoptosis.[2] [DCC_HUMAN] Receptor for netrin required for axon guidance. Mediates axon attraction of neuronal growth cones in the developing nervous system upon ligand binding. Its association with UNC5 proteins may trigger signaling for axon repulsion. It also acts as a dependence receptor required for apoptosis induction when not associated with netrin ligand. Implicated as a tumor suppressor gene.[3] [4]
Publication Abstract from PubMed
Netrin-1 is a guidance cue that can trigger either attraction or repulsion effects on migrating axons of neurons, depending on the repertoire of receptors available on the growth cone. How a single chemotropic molecule can act in such contradictory ways has long been a puzzle at the molecular level. Here we present the crystal structure of netrin-1 in complex with the Deleted in Colorectal Cancer (DCC) receptor. We show that one netrin-1 molecule can simultaneously bind to two DCC molecules through a DCC-specific site and through a unique generic receptor binding site, where sulfate ions staple together positively charged patches on both DCC and netrin-1. Furthermore, we demonstrate that UNC5A can replace DCC on the generic receptor binding site to switch the response from attraction to repulsion. We propose that the modularity of binding allows for the association of other netrin receptors at the generic binding site, eliciting alternative turning responses.
The Crystal Structure of Netrin-1 in Complex with DCC Reveals the Bifunctionality of Netrin-1 As a Guidance Cue.,Finci LI, Kruger N, Sun X, Zhang J, Chegkazi M, Wu Y, Schenk G, Mertens HD, Svergun DI, Zhang Y, Wang JH, Meijers R Neuron. 2014 Aug 20;83(4):839-49. doi: 10.1016/j.neuron.2014.07.010. Epub 2014, Aug 7. PMID:25123307[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Srour M, Riviere JB, Pham JM, Dube MP, Girard S, Morin S, Dion PA, Asselin G, Rochefort D, Hince P, Diab S, Sharafaddinzadeh N, Chouinard S, Theoret H, Charron F, Rouleau GA. Mutations in DCC cause congenital mirror movements. Science. 2010 Apr 30;328(5978):592. doi: 10.1126/science.1186463. PMID:20431009 doi:10.1126/science.1186463
- ↑ Mazelin L, Bernet A, Bonod-Bidaud C, Pays L, Arnaud S, Gespach C, Bredesen DE, Scoazec JY, Mehlen P. Netrin-1 controls colorectal tumorigenesis by regulating apoptosis. Nature. 2004 Sep 2;431(7004):80-4. PMID:15343335 doi:http://dx.doi.org/10.1038/nature02788
- ↑ Keino-Masu K, Masu M, Hinck L, Leonardo ED, Chan SS, Culotti JG, Tessier-Lavigne M. Deleted in Colorectal Cancer (DCC) encodes a netrin receptor. Cell. 1996 Oct 18;87(2):175-85. PMID:8861902
- ↑ Miyake S, Nagai K, Yoshino K, Oto M, Endo M, Yuasa Y. Point mutations and allelic deletion of tumor suppressor gene DCC in human esophageal squamous cell carcinomas and their relation to metastasis. Cancer Res. 1994 Jun 1;54(11):3007-10. PMID:8187090
- ↑ Finci LI, Kruger N, Sun X, Zhang J, Chegkazi M, Wu Y, Schenk G, Mertens HD, Svergun DI, Zhang Y, Wang JH, Meijers R. The Crystal Structure of Netrin-1 in Complex with DCC Reveals the Bifunctionality of Netrin-1 As a Guidance Cue. Neuron. 2014 Aug 20;83(4):839-49. doi: 10.1016/j.neuron.2014.07.010. Epub 2014, Aug 7. PMID:25123307 doi:http://dx.doi.org/10.1016/j.neuron.2014.07.010
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