1fi8
From Proteopedia
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| - | [[Image:1fi8.gif|left|200px]]<br /><applet load="1fi8" size="350" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="1fi8, resolution 2.2Å" /> | ||
| - | '''RAT GRANZYME B [N66Q] COMPLEXED TO ECOTIN [81-84 IEPD]'''<br /> | ||
| - | == | + | ==RAT GRANZYME B [N66Q] COMPLEXED TO ECOTIN [81-84 IEPD]== |
| + | <StructureSection load='1fi8' size='340' side='right'caption='[[1fi8]], [[Resolution|resolution]] 2.20Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1fi8]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FI8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FI8 FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2Å</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=1fi8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fi8 OCA], [https://pdbe.org/1fi8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fi8 RCSB], [https://www.ebi.ac.uk/pdbsum/1fi8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fi8 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/GRAB_RAT GRAB_RAT] This enzyme is necessary for target cell lysis in cell-mediated immune responses. It cleaves after Asp. Seems to be linked to an activation cascade of caspases (aspartate-specific cysteine proteases) responsible for apoptosis execution. Cleaves caspase-3, -7, -9 and 10 to give rise to active enzymes mediating apoptosis (By similarity). | ||
| + | == Evolutionary Conservation == | ||
| + | [[Image:Consurf_key_small.gif|200px|right]] | ||
| + | Check<jmol> | ||
| + | <jmolCheckbox> | ||
| + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fi/1fi8_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | ||
| + | <text>to colour the structure by Evolutionary Conservation</text> | ||
| + | </jmolCheckbox> | ||
| + | </jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1fi8 ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
Granzyme B is a serine protease of the chymotrypsin fold that mediates cell death by cytotoxic lymphocytes. It is a processing enzyme, requiring extended peptide substrates containing an Asp residue. The determinants that allow for this substrate specificity are revealed in the three-dimensional structure of granzyme B in complex with a macromolecular inhibitor. The primary specificity for Asp occurs through a side-on interaction with Arg 226, a buried Arg side chain of granzyme B. An additional nine amino acids make contact with the substrate and define the granzyme B extended substrate specificity profile. The substrate determinants found in this structure are shared by other members of this protein class and help to reveal the properties that define substrate specificity. | Granzyme B is a serine protease of the chymotrypsin fold that mediates cell death by cytotoxic lymphocytes. It is a processing enzyme, requiring extended peptide substrates containing an Asp residue. The determinants that allow for this substrate specificity are revealed in the three-dimensional structure of granzyme B in complex with a macromolecular inhibitor. The primary specificity for Asp occurs through a side-on interaction with Arg 226, a buried Arg side chain of granzyme B. An additional nine amino acids make contact with the substrate and define the granzyme B extended substrate specificity profile. The substrate determinants found in this structure are shared by other members of this protein class and help to reveal the properties that define substrate specificity. | ||
| - | + | The structure of the pro-apoptotic protease granzyme B reveals the molecular determinants of its specificity.,Waugh SM, Harris JL, Fletterick R, Craik CS Nat Struct Biol. 2000 Sep;7(9):762-5. PMID:10966646<ref>PMID:10966646</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| + | <div class="pdbe-citations 1fi8" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[Ecotin|Ecotin]] | ||
| + | *[[Granzyme|Granzyme]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
[[Category: Rattus norvegicus]] | [[Category: Rattus norvegicus]] | ||
| - | [[Category: Craik | + | [[Category: Craik CS]] |
| - | [[Category: Fletterick | + | [[Category: Fletterick RJ]] |
| - | [[Category: Harris | + | [[Category: Harris JL]] |
| - | [[Category: Waugh | + | [[Category: Waugh SM]] |
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Current revision
RAT GRANZYME B [N66Q] COMPLEXED TO ECOTIN [81-84 IEPD]
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