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| | <StructureSection load='3a7q' size='340' side='right'caption='[[3a7q]], [[Resolution|resolution]] 2.60Å' scene=''> | | <StructureSection load='3a7q' size='340' side='right'caption='[[3a7q]], [[Resolution|resolution]] 2.60Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3a7q]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A7Q OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3A7Q FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3a7q]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A7Q OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3A7Q FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Reln ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), APOER2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3a7q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a7q OCA], [https://pdbe.org/3a7q PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3a7q RCSB], [https://www.ebi.ac.uk/pdbsum/3a7q PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3a7q ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3a7q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a7q OCA], [https://pdbe.org/3a7q PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3a7q RCSB], [https://www.ebi.ac.uk/pdbsum/3a7q PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3a7q ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Disease == | | == Disease == |
| - | [[https://www.uniprot.org/uniprot/RELN_MOUSE RELN_MOUSE]] Note=Defects in Reln are the cause of the autosomal recessive reeler (rl) phenotype which is characterized by impaired motor coordination, tremors and ataxia. Neurons in affected mice fail to reach their correct locations in the developing brain, disrupting the organization of the cerebellar and cerebral cortices and other laminated regions. [[https://www.uniprot.org/uniprot/LRP8_HUMAN LRP8_HUMAN]] Defects in LRP8 are a cause of myocardial infarction type 1 (MCI1) [MIM:[https://omim.org/entry/608446 608446]]. A condition defined by the irreversible necrosis of heart muscle secondary to prolonged ischemia.
| + | [https://www.uniprot.org/uniprot/RELN_MOUSE RELN_MOUSE] Note=Defects in Reln are the cause of the autosomal recessive reeler (rl) phenotype which is characterized by impaired motor coordination, tremors and ataxia. Neurons in affected mice fail to reach their correct locations in the developing brain, disrupting the organization of the cerebellar and cerebral cortices and other laminated regions. |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/RELN_MOUSE RELN_MOUSE]] Extracellular matrix serine protease that plays a role in layering of neurons in the cerebral cortex and cerebellum. Regulates microtubule function in neurons and neuronal migration. Affects migration of sympathetic preganglionic neurons in the spinal cord, where it seems to act as a barrier to neuronal migration. Enzymatic activity is important for the modulation of cell adhesion. Binding to the extracellular domains of lipoprotein receptors VLDLR and LRP8/APOER2 induces tyrosine phosphorylation of DAB1 and modulation of TAU phosphorylation.<ref>PMID:10880573</ref> [[https://www.uniprot.org/uniprot/LRP8_HUMAN LRP8_HUMAN]] Cell surface receptor for Reelin (RELN) and apolipoprotein E (apoE)-containing ligands. LRP8 participates in transmitting the extracellular Reelin signal to intracellular signaling processes, by binding to DAB1 on its cytoplasmic tail. Reelin acts via both the VLDL receptor (VLDLR) and LRP8 to regulate DAB1 tyrosine phosphorylation and microtubule function in neurons. LRP8 has higher affinity for Reelin than VLDLR. LRP8 is thus a key component of the Reelin pathway which governs neuronal layering of the forebrain during embryonic brain development. Binds the endoplasmic reticulum resident receptor-associated protein (RAP). Binds dimers of beta 2-glycoprotein I and may be involved in the suppression of platelet aggregation in the vasculature. Highly expressed in the initial segment of the epididymis, where it affects the functional expression of clusterin and phospholipid hydroperoxide glutathione peroxidase (PHGPx), two proteins required for sperm maturation. May also function as an endocytic receptor.<ref>PMID:12899622</ref> <ref>PMID:12950167</ref> <ref>PMID:12807892</ref>
| + | [https://www.uniprot.org/uniprot/RELN_MOUSE RELN_MOUSE] Extracellular matrix serine protease that plays a role in layering of neurons in the cerebral cortex and cerebellum. Regulates microtubule function in neurons and neuronal migration. Affects migration of sympathetic preganglionic neurons in the spinal cord, where it seems to act as a barrier to neuronal migration. Enzymatic activity is important for the modulation of cell adhesion. Binding to the extracellular domains of lipoprotein receptors VLDLR and LRP8/APOER2 induces tyrosine phosphorylation of DAB1 and modulation of TAU phosphorylation.<ref>PMID:10880573</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Lk3 transgenic mice]] | + | [[Category: Mus musculus]] |
| - | [[Category: Nogi, T]] | + | [[Category: Nogi T]] |
| - | [[Category: Takagi, J]] | + | [[Category: Takagi J]] |
| - | [[Category: Yasui, N]] | + | [[Category: Yasui N]] |
| - | [[Category: Signaling protein]]
| + | |
| Structural highlights
Disease
RELN_MOUSE Note=Defects in Reln are the cause of the autosomal recessive reeler (rl) phenotype which is characterized by impaired motor coordination, tremors and ataxia. Neurons in affected mice fail to reach their correct locations in the developing brain, disrupting the organization of the cerebellar and cerebral cortices and other laminated regions.
Function
RELN_MOUSE Extracellular matrix serine protease that plays a role in layering of neurons in the cerebral cortex and cerebellum. Regulates microtubule function in neurons and neuronal migration. Affects migration of sympathetic preganglionic neurons in the spinal cord, where it seems to act as a barrier to neuronal migration. Enzymatic activity is important for the modulation of cell adhesion. Binding to the extracellular domains of lipoprotein receptors VLDLR and LRP8/APOER2 induces tyrosine phosphorylation of DAB1 and modulation of TAU phosphorylation.[1]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Apolipoprotein E receptor 2 (ApoER2) and very-low-density lipoprotein receptor, members of the low-density lipoprotein receptor (LDLR) protein family, function as neuronal receptors for a secreted glycoprotein reelin during brain development. In both receptors, the first LDLR class A (LA1) module is sufficient to bind reelin. Analysis of a 2.6 A crystal structure of the reelin receptor-binding fragment in complex with the LA1 of ApoER2 revealed that Lys2467 of reelin is recognized by both a conserved Trp residue and calcium-coordinating acidic residues from LA1, which together with Lys2360 plays a critical role in the interaction. This "double-Lys" recognition mode is, in fact, shared among other LDLR family proteins in ligand binding. The interface between reelin and LA1 covers a small surface area of approximately 350 A(2) on each side, which ensures a stable complex formation under physiological conditions. An examination of structure-guided mutagenesis on interface residues revealed key features of this interaction.
Structural basis for specific recognition of reelin by its receptors.,Yasui N, Nogi T, Takagi J Structure. 2010 Mar 10;18(3):320-31. PMID:20223215[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Yip JW, Yip YP, Nakajima K, Capriotti C. Reelin controls position of autonomic neurons in the spinal cord. Proc Natl Acad Sci U S A. 2000 Jul 18;97(15):8612-6. PMID:10880573 doi:10.1073/pnas.150040497
- ↑ Yasui N, Nogi T, Takagi J. Structural basis for specific recognition of reelin by its receptors. Structure. 2010 Mar 10;18(3):320-31. PMID:20223215 doi:10.1016/j.str.2010.01.010
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