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| | ==Crystal structure of amino-terminal microtubule binding domain of EB1== | | ==Crystal structure of amino-terminal microtubule binding domain of EB1== |
| - | <StructureSection load='1ueg' size='340' side='right' caption='[[1ueg]], [[Resolution|resolution]] 2.40Å' scene=''> | + | <StructureSection load='1ueg' size='340' side='right'caption='[[1ueg]], [[Resolution|resolution]] 2.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1ueg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UEG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UEG FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1ueg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UEG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UEG FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 2.4Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1pa7|1pa7]]</td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">EB1 (amino acids 1-130) ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=1ueg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ueg OCA], [https://pdbe.org/1ueg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ueg RCSB], [https://www.ebi.ac.uk/pdbsum/1ueg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ueg ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ueg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ueg OCA], [http://pdbe.org/1ueg PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ueg RCSB], [http://www.ebi.ac.uk/pdbsum/1ueg PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ueg ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/MARE1_HUMAN MARE1_HUMAN]] Binds to the plus end of microtubules and regulates the dynamics of the microtubule cytoskeleton. Promotes cytoplasmic microtubule nucleation and elongation. May be involved in spindle function by stabilizing microtubules and anchoring them at centrosomes. May play a role in cell migration.<ref>PMID:12388762</ref> <ref>PMID:21646404</ref> <ref>PMID:16109370</ref> <ref>PMID:19632184</ref> | + | [https://www.uniprot.org/uniprot/MARE1_HUMAN MARE1_HUMAN] Binds to the plus end of microtubules and regulates the dynamics of the microtubule cytoskeleton. Promotes cytoplasmic microtubule nucleation and elongation. May be involved in spindle function by stabilizing microtubules and anchoring them at centrosomes. May play a role in cell migration.<ref>PMID:12388762</ref> <ref>PMID:21646404</ref> <ref>PMID:16109370</ref> <ref>PMID:19632184</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | ==See Also== | | ==See Also== |
| | *[[End-binding protein|End-binding protein]] | | *[[End-binding protein|End-binding protein]] |
| - | *[[Microtubule-associated protein|Microtubule-associated protein]] | + | *[[Microtubule-associated protein 3D structures|Microtubule-associated protein 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Hayashi, I]] | + | [[Category: Large Structures]] |
| - | [[Category: Ikura, M]] | + | [[Category: Hayashi I]] |
| - | [[Category: Ch domain]] | + | [[Category: Ikura M]] |
| - | [[Category: Structural protein]]
| + | |
| Structural highlights
Function
MARE1_HUMAN Binds to the plus end of microtubules and regulates the dynamics of the microtubule cytoskeleton. Promotes cytoplasmic microtubule nucleation and elongation. May be involved in spindle function by stabilizing microtubules and anchoring them at centrosomes. May play a role in cell migration.[1] [2] [3] [4]
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
The end-binding protein 1 (EB1) family is a highly conserved group of proteins that localizes to the plus-ends of microtubules. EB1 has been shown to play an important role in regulating microtubule dynamics and chromosome segregation, but its regulation mechanism is poorly understood. We have determined the 1.45-A resolution crystal structure of the amino-terminal domain of EB1, which is essential for microtubule binding, and show that it forms a calponin homology (CH) domain fold that is found in many proteins involved in the actin cytoskeleton. The functional CH domain for actin binding is a tandem pair, whereas EB1 is the first example of a single CH domain that can associate with the microtubule filament. Although our biochemical study shows that microtubule binding of EB1 is electrostatic in part, our mutational analysis suggests that the hydrophobic network, which is partially exposed in our crystal structure, is also important for the association. We propose that, like other actin-binding CH domains, EB1 employs the hydrophobic interaction to bind to microtubules.
Crystal structure of the amino-terminal microtubule-binding domain of end-binding protein 1 (EB1).,Hayashi I, Ikura M J Biol Chem. 2003 Sep 19;278(38):36430-4. Epub 2003 Jul 11. PMID:12857735[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Askham JM, Vaughan KT, Goodson HV, Morrison EE. Evidence that an interaction between EB1 and p150(Glued) is required for the formation and maintenance of a radial microtubule array anchored at the centrosome. Mol Biol Cell. 2002 Oct;13(10):3627-45. PMID:12388762 doi:10.1091/mbc.E02-01-0061
- ↑ van der Vaart B, Manatschal C, Grigoriev I, Olieric V, Gouveia SM, Bjelic S, Demmers J, Vorobjev I, Hoogenraad CC, Steinmetz MO, Akhmanova A. SLAIN2 links microtubule plus end-tracking proteins and controls microtubule growth in interphase. J Cell Biol. 2011 Jun 13;193(6):1083-99. Epub 2011 Jun 6. PMID:21646404 doi:10.1083/jcb.201012179
- ↑ Hayashi I, Wilde A, Mal TK, Ikura M. Structural basis for the activation of microtubule assembly by the EB1 and p150Glued complex. Mol Cell. 2005 Aug 19;19(4):449-60. PMID:16109370 doi:10.1016/j.molcel.2005.06.034
- ↑ Honnappa S, Gouveia SM, Weisbrich A, Damberger FF, Bhavesh NS, Jawhari H, Grigoriev I, van Rijssel FJ, Buey RM, Lawera A, Jelesarov I, Winkler FK, Wuthrich K, Akhmanova A, Steinmetz MO. An EB1-binding motif acts as a microtubule tip localization signal. Cell. 2009 Jul 23;138(2):366-76. PMID:19632184 doi:S0092-8674(09)00638-2
- ↑ Hayashi I, Ikura M. Crystal structure of the amino-terminal microtubule-binding domain of end-binding protein 1 (EB1). J Biol Chem. 2003 Sep 19;278(38):36430-4. Epub 2003 Jul 11. PMID:12857735 doi:10.1074/jbc.M305773200
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