1op8: Difference between revisions

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[[Image:1op8.png|left|200px]]


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==Crystal Structure of Human Granzyme A==
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<StructureSection load='1op8' size='340' side='right'caption='[[1op8]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1op8]] is a 6 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=1OP8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OP8 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
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<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>
{{STRUCTURE_1op8|  PDB=1op8  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1op8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1op8 OCA], [https://pdbe.org/1op8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1op8 RCSB], [https://www.ebi.ac.uk/pdbsum/1op8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1op8 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GRAA_HUMAN GRAA_HUMAN] This enzyme is necessary for target cell lysis in cell-mediated immune responses. It cleaves after Lys or Arg. Cleaves APEX1 after 'Lys-31' and destroys its oxidative repair activity. Involved in apoptosis.<ref>PMID:12524539</ref>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
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    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/op/1op8_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=1op8 ConSurf].
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== Publication Abstract from PubMed ==
Granzyme A (GzmA) belongs to a family of trypsin-like serine proteases localized in cytoplasmic granules of activated lymphocytes and natural killer (NK) cells. In contrast to the related granzyme B (GzmB), GzmA forms a stable disulfide-linked homodimer and triggers target-cell death in a caspase-independent way. Limited proteolysis of a high-molecular-mass complex containing SET (also named putative HLA-associated protein II or PHAPII), PHAPI (pp32, leucine-rich acidic nuclear protein) and HMG2 by GzmA liberates NM23-H1, a Mg2+-dependent DNase that causes single-stranded breaks in nuclear DNA. By analyzing the dimeric GzmA structure at a resolution of 2.5 A, we determined the substrate-binding constraints and selective advantages of the two domains arranged as a unique functional tandem. The active sites of the two subunits point in opposite directions and the nearby noncatalytic surfaces can function as exosites, presenting substrates to the active site region of the adjacent partner in a manner analogous to staphylokinase or streptokinase, which present plasminogen to the cofactor-plasmin and cofactor-plasminogen complexes.


===Crystal Structure of Human Granzyme A===
Crystal structure of the apoptosis-inducing human granzyme A dimer.,Hink-Schauer C, Estebanez-Perpina E, Kurschus FC, Bode W, Jenne DE Nat Struct Biol. 2003 Jul;10(7):535-40. PMID:12819770<ref>PMID:12819770</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
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*[[Granzyme|Granzyme]]
(as it appears on PubMed at http://www.pubmed.gov), where 12819770 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_12819770}}
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</StructureSection>
==About this Structure==
1OP8 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OP8 OCA].
 
==Reference==
Crystal structure of the apoptosis-inducing human granzyme A dimer., Hink-Schauer C, Estebanez-Perpina E, Kurschus FC, Bode W, Jenne DE, Nat Struct Biol. 2003 Jul;10(7):535-40. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12819770 12819770]
[[Category: Granzyme A]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Bode, W.]]
[[Category: Bode W]]
[[Category: Estebanez-Perpina, E.]]
[[Category: Estebanez-Perpina E]]
[[Category: Hink-Schauer, C.]]
[[Category: Hink-Schauer C]]
[[Category: Jenne, D.]]
[[Category: Jenne D]]
[[Category: Apoptosis]]
[[Category: Granzyme some]]
[[Category: Serine proteinase]]
 
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