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[[Image:1b59.jpg|left|200px]]
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{{STRUCTURE_1b59|  PDB=1b59  |  SCENE=  }}
'''COMPLEX OF HUMAN METHIONINE AMINOPEPTIDASE-2 COMPLEXED WITH OVALICIN'''


==COMPLEX OF HUMAN METHIONINE AMINOPEPTIDASE-2 COMPLEXED WITH OVALICIN==
<StructureSection load='1b59' size='340' side='right'caption='[[1b59]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1b59]] 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=1B59 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1B59 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]] 1.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CO:COBALT+(II)+ION'>CO</scene>, <scene name='pdbligand=OVA:3,4-DIHYDROXY-2-METHOXY-4-METHYL-3-[2-METHYL-3-(3-METHYL-BUT-2-ENYL)+-OXIRANYL]-CYCLOHEXANONE'>OVA</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=1b59 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b59 OCA], [https://pdbe.org/1b59 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1b59 RCSB], [https://www.ebi.ac.uk/pdbsum/1b59 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1b59 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/MAP2_HUMAN MAP2_HUMAN] Cotranslationally removes the N-terminal methionine from nascent proteins. The N-terminal methionine is often cleaved when the second residue in the primary sequence is small and uncharged (Met-Ala-, Cys, Gly, Pro, Ser, Thr, or Val). The catalytic activity of human METAP2 toward Met-Val peptides is consistently two orders of magnitude higher than that of METAP1, suggesting that it is responsible for processing proteins containing N-terminal Met-Val and Met-Thr sequences in vivo.  Protects eukaryotic initiation factor EIF2S1 from translation-inhibiting phosphorylation by inhibitory kinases such as EIF2AK2/PKR and EIF2AK1/HCR. Plays a critical role in the regulation of protein synthesis.
== 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/b5/1b59_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=1b59 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The fungal metabolite fumagillin suppresses the formation of new blood vessels, and a fumagillin analog is currently in clinical trials as an anticancer agent. The molecular target of fumagillin is methionine aminopeptidase-2 (MetAP-2). A 1.8 A resolution crystal structure of free and inhibited human MetAP-2 shows a covalent bond formed between a reactive epoxide of fumagillin and histidine-231 in the active site of MetAP-2. Extensive hydrophobic and water-mediated polar interactions with other parts of fumagillin provide additional affinity. Fumagillin-based drugs inhibit MetAP-2 but not MetAP-1, and the three-dimensional structure also indicates the likely determinants of this specificity. The structural basis for fumagillin's potency and specificity forms the starting point for structure-based drug design.


==Overview==
Structure of human methionine aminopeptidase-2 complexed with fumagillin.,Liu S, Widom J, Kemp CW, Crews CM, Clardy J Science. 1998 Nov 13;282(5392):1324-7. PMID:9812898<ref>PMID:9812898</ref>
The fungal metabolite fumagillin suppresses the formation of new blood vessels, and a fumagillin analog is currently in clinical trials as an anticancer agent. The molecular target of fumagillin is methionine aminopeptidase-2 (MetAP-2). A 1.8 A resolution crystal structure of free and inhibited human MetAP-2 shows a covalent bond formed between a reactive epoxide of fumagillin and histidine-231 in the active site of MetAP-2. Extensive hydrophobic and water-mediated polar interactions with other parts of fumagillin provide additional affinity. Fumagillin-based drugs inhibit MetAP-2 but not MetAP-1, and the three-dimensional structure also indicates the likely determinants of this specificity. The structural basis for fumagillin's potency and specificity forms the starting point for structure-based drug design.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1B59 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=1B59 OCA].
</div>
<div class="pdbe-citations 1b59" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Structure of human methionine aminopeptidase-2 complexed with fumagillin., Liu S, Widom J, Kemp CW, Crews CM, Clardy J, Science. 1998 Nov 13;282(5392):1324-7. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9812898 9812898]
*[[Aminopeptidase 3D structures|Aminopeptidase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Methionyl aminopeptidase]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Clardy JC]]
[[Category: Clardy, J C.]]
[[Category: Liu S]]
[[Category: Liu, S.]]
[[Category: Angiogenesis inhibitor]]
[[Category: Hydrolase]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 11:05:18 2008''

Latest revision as of 06:24, 30 October 2024

COMPLEX OF HUMAN METHIONINE AMINOPEPTIDASE-2 COMPLEXED WITH OVALICIN

1b59, resolution 1.80Å

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