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| | <StructureSection load='6nw3' size='340' side='right'caption='[[6nw3]], [[Resolution|resolution]] 2.35Å' scene=''> | | <StructureSection load='6nw3' size='340' side='right'caption='[[6nw3]], [[Resolution|resolution]] 2.35Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[6nw3]] is a 3 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=6NW3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6NW3 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[6nw3]] is a 3 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=6NW3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6NW3 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=L4J:N-(2-methylpropyl)-N~2~-{[(4S)-17-[(methylsulfonyl)(propyl)amino]-2-oxo-3-azatricyclo[13.3.1.1~6,10~]icosa-1(19),6(20),7,9,15,17-hexaen-4-yl]methyl}-L-norleucinamide'>L4J</scene>, <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]] 2.352Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BACE1, BACE, KIAA1149 ([http://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=L4J:N-(2-methylpropyl)-N~2~-{[(4S)-17-[(methylsulfonyl)(propyl)amino]-2-oxo-3-azatricyclo[13.3.1.1~6,10~]icosa-1(19),6(20),7,9,15,17-hexaen-4-yl]methyl}-L-norleucinamide'>L4J</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Memapsin_2 Memapsin 2], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.23.46 3.4.23.46] </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=6nw3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6nw3 OCA], [https://pdbe.org/6nw3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6nw3 RCSB], [https://www.ebi.ac.uk/pdbsum/6nw3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6nw3 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=6nw3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6nw3 OCA], [http://pdbe.org/6nw3 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6nw3 RCSB], [http://www.ebi.ac.uk/pdbsum/6nw3 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6nw3 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/BACE1_HUMAN BACE1_HUMAN]] Responsible for the proteolytic processing of the amyloid precursor protein (APP). Cleaves at the N-terminus of the A-beta peptide sequence, between residues 671 and 672 of APP, leads to the generation and extracellular release of beta-cleaved soluble APP, and a corresponding cell-associated C-terminal fragment which is later released by gamma-secretase.<ref>PMID:10677483</ref> <ref>PMID:20354142</ref> | + | [https://www.uniprot.org/uniprot/BACE1_HUMAN BACE1_HUMAN] Responsible for the proteolytic processing of the amyloid precursor protein (APP). Cleaves at the N-terminus of the A-beta peptide sequence, between residues 671 and 672 of APP, leads to the generation and extracellular release of beta-cleaved soluble APP, and a corresponding cell-associated C-terminal fragment which is later released by gamma-secretase.<ref>PMID:10677483</ref> <ref>PMID:20354142</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | </div> | | </div> |
| | <div class="pdbe-citations 6nw3" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 6nw3" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Beta secretase 3D structures|Beta secretase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Memapsin 2]]
| + | [[Category: Ghosh AK]] |
| - | [[Category: Ghosh, A K]] | + | [[Category: Mesecar AD]] |
| - | [[Category: Mesecar, A D]] | + | [[Category: Yen YC]] |
| - | [[Category: Yen, Y C]] | + | |
| - | [[Category: Inhibitor complex]]
| + | |
| - | [[Category: Peptide binding protein]]
| + | |
| - | [[Category: Peptide binding protein-inhibitor complex]]
| + | |
| - | [[Category: Protease]]
| + | |
| Structural highlights
Function
BACE1_HUMAN Responsible for the proteolytic processing of the amyloid precursor protein (APP). Cleaves at the N-terminus of the A-beta peptide sequence, between residues 671 and 672 of APP, leads to the generation and extracellular release of beta-cleaved soluble APP, and a corresponding cell-associated C-terminal fragment which is later released by gamma-secretase.[1] [2]
Publication Abstract from PubMed
BACE1 (Beta-site Amyloid precursor protein (APP) Cleaving Enzyme 1) is a promising therapeutic target for Alzheimer's disease (AD). However, efficient expression, purification and crystallization systems are not well described or detailed in the literature nor are approaches for treatment of enzyme kinetic data for potent inhibitors well described. We therefore developed a platform for expression and purification of BACE1, including protein refolding from inclusion bodies, from E.coli in addition to optimizing a reproducible crystallization procedure of BACE1 bound with inhibitors. We also report a detailed approach to the proper analysis of enzyme kinetic data for compounds that exhibit either rapid-equilibrium or tight-binding mechanisms. Our methods allow for the purification of ~15 mg of BACE1 enzyme from 1 L of culture which is higher than reported yields in the current literature. To evaluate the data analysis approach developed here, a well-known potent inhibitor and two of its derivatives were tested, analyzed and compared. The inhibitory constants (Ki) obtained from the kinetic studies are in agreement with dissociation constants (Kd) that were also determined using isothermal titration calorimetry (ITC) experiments. The X-ray structures of these three compounds in complex with BACE1 were readily obtained and provide important insight into the structure and thermodynamics of the BACE1-inhibitor interactions.
Development of an efficient enzyme production and structure-based discovery platform for BACE1 inhibitors.,Yen YC, Kammeyer A, Jensen KC, Tirlangi J, Ghosh AK, Mesecar AD Biochemistry. 2019 Sep 24. doi: 10.1021/acs.biochem.9b00714. PMID:31549827[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Lin X, Koelsch G, Wu S, Downs D, Dashti A, Tang J. Human aspartic protease memapsin 2 cleaves the beta-secretase site of beta-amyloid precursor protein. Proc Natl Acad Sci U S A. 2000 Feb 15;97(4):1456-60. PMID:10677483
- ↑ Okada H, Zhang W, Peterhoff C, Hwang JC, Nixon RA, Ryu SH, Kim TW. Proteomic identification of sorting nexin 6 as a negative regulator of BACE1-mediated APP processing. FASEB J. 2010 Aug;24(8):2783-94. doi: 10.1096/fj.09-146357. Epub 2010 Mar 30. PMID:20354142 doi:10.1096/fj.09-146357
- ↑ Yen YC, Kammeyer A, Jensen KC, Tirlangi J, Ghosh AK, Mesecar AD. Development of an efficient enzyme production and structure-based discovery platform for BACE1 inhibitors. Biochemistry. 2019 Sep 24. doi: 10.1021/acs.biochem.9b00714. PMID:31549827 doi:http://dx.doi.org/10.1021/acs.biochem.9b00714
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