1o7d: Difference between revisions

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-[[Image:1o7d.jpg|left|200px]]
-<!--
-The line below this paragraph, containing "STRUCTURE_1o7d", creates the "Structure Box" on the page.
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-{{STRUCTURE_1o7d|  PDB=1o7d  |  SCENE=  }}
-'''THE STRUCTURE OF THE BOVINE LYSOSOMAL A-MANNOSIDASE SUGGESTS A NOVEL MECHANISM FOR LOW PH ACTIVATION'''
+==The structure of the bovine lysosomal a-mannosidase suggests a novel mechanism for low pH activation==
+<StructureSection load='1o7d' size='340' side='right'caption='[[1o7d]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1o7d]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1O7D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1O7D 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]] 2.7&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TRS:2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL'>TRS</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=1o7d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1o7d OCA], [https://pdbe.org/1o7d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1o7d RCSB], [https://www.ebi.ac.uk/pdbsum/1o7d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1o7d ProSAT]</span></td></tr>
+</table>
+== Disease ==
+[https://www.uniprot.org/uniprot/MA2B1_BOVIN MA2B1_BOVIN] Note=Defects in MAN2B1 are the cause of lysosomal alpha-mannosidosis (AM). AM is a lysosomal storage disease characterized by accumulation of unbranched oligosaccharide chains. The disease manifests itself by head tremor, aggressive tendency, ataxia, failure to thrive, and early death.
+== Function ==
+[https://www.uniprot.org/uniprot/MA2B1_BOVIN MA2B1_BOVIN] Necessary for the catabolism of N-linked carbohydrates released during glycoprotein turnover.
+== 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/o7/1o7d_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=1o7d ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Lysosomal alpha-mannosidase (LAM: EC 3.2.1.24) belongs to the sequence-based glycoside hydrolase family 38 (GH38). Two other mammalian GH38 members, Golgi alpha-mannosidase II (GIIAM) and cytosolic alpha-mannosidase, are expressed in all tissues. In humans, cattle, cat and guinea pig, lack of lysosomal alpha-mannosidase activity causes the autosomal recessive disease alpha-mannosidosis. Here, we describe the three-dimensional structure of bovine lysosomal alpha-mannosidase (bLAM) at 2.7A resolution and confirm the solution state dimer by electron microscopy. We present the first structure of a mammalian GH38 enzyme that offers indications for the signal areas for mannose phosphorylation, suggests a previously undetected mechanism of low-pH activation and provides a template for further biochemical studies of the family 38 glycoside hydrolases as well as lysosomal transport. Furthermore, it provides a basis for understanding the human form of alpha-mannosidosis at the atomic level. The atomic coordinates and structure factors have been deposited in the Protein Data Bank (accession codes 1o7d and r1o7dsf).
-==Overview==
+The structure of bovine lysosomal alpha-mannosidase suggests a novel mechanism for low-pH activation.,Heikinheimo P, Helland R, Leiros HK, Leiros I, Karlsen S, Evjen G, Ravelli R, Schoehn G, Ruigrok R, Tollersrud OK, McSweeney S, Hough E J Mol Biol. 2003 Mar 28;327(3):631-44. PMID:12634058<ref>PMID:12634058</ref>
-Lysosomal alpha-mannosidase (LAM: EC 3.2.1.24) belongs to the sequence-based glycoside hydrolase family 38 (GH38). Two other mammalian GH38 members, Golgi alpha-mannosidase II (GIIAM) and cytosolic alpha-mannosidase, are expressed in all tissues. In humans, cattle, cat and guinea pig, lack of lysosomal alpha-mannosidase activity causes the autosomal recessive disease alpha-mannosidosis. Here, we describe the three-dimensional structure of bovine lysosomal alpha-mannosidase (bLAM) at 2.7A resolution and confirm the solution state dimer by electron microscopy. We present the first structure of a mammalian GH38 enzyme that offers indications for the signal areas for mannose phosphorylation, suggests a previously undetected mechanism of low-pH activation and provides a template for further biochemical studies of the family 38 glycoside hydrolases as well as lysosomal transport. Furthermore, it provides a basis for understanding the human form of alpha-mannosidosis at the atomic level. The atomic coordinates and structure factors have been deposited in the Protein Data Bank (accession codes 1o7d and r1o7dsf).
-==About this Structure==
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-O7D is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1O7D OCA].
+</div>
+<div class="pdbe-citations 1o7d" style="background-color:#fffaf0;"></div>
-==Reference==
+==See Also==
-The structure of bovine lysosomal alpha-mannosidase suggests a novel mechanism for low-pH activation., Heikinheimo P, Helland R, Leiros HK, Leiros I, Karlsen S, Evjen G, Ravelli R, Schoehn G, Ruigrok R, Tollersrud OK, McSweeney S, Hough E, J Mol Biol. 2003 Mar 28;327(3):631-44. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12634058 12634058]
+*[[Mannosidase 3D structures|Mannosidase 3D structures]]
-[[Category: Alpha-mannosidase]]
+== References ==
+<references/>
+__TOC__
+</StructureSection>
 [[Category: Bos taurus]]
-[[Category: Single protein]]
+[[Category: Large Structures]]
-[[Category: Evjen, G.]]
+[[Category: Evjen G]]
-[[Category: Heikinheimo, P.]]
+[[Category: Heikinheimo P]]
-[[Category: Helland, R.]]
+[[Category: Helland R]]
-[[Category: Hough, E.]]
+[[Category: Hough E]]
-[[Category: Karlsen, S.]]
+[[Category: Karlsen S]]
-[[Category: Leiros, H S.]]
+[[Category: Leiros HS]]
-[[Category: Leiros, I.]]
+[[Category: Leiros I]]
-[[Category: Mcsweeney, S.]]
+[[Category: Mcsweeney S]]
-[[Category: Ravelli, R.]]
+[[Category: Ravelli R]]
-[[Category: Ruigrok, R.]]
+[[Category: Ruigrok R]]
-[[Category: Schoehn, G.]]
+[[Category: Schoehn G]]
-[[Category: Tollersrud, O K.]]
+[[Category: Tollersrud O-K]]
-[[Category: A-mannosidase]]
-[[Category: Glycosyl hydrolase family 38]]
-[[Category: Lysosomal]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 03:28:33 2008''