1dle

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{{Seed}}
 
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[[Image:1dle.png|left|200px]]
 
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==FACTOR B SERINE PROTEASE DOMAIN==
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The line below this paragraph, containing "STRUCTURE_1dle", creates the "Structure Box" on the page.
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<StructureSection load='1dle' size='340' side='right'caption='[[1dle]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1dle]] is a 2 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=1DLE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DLE FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.1&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1dle FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dle OCA], [https://pdbe.org/1dle PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dle RCSB], [https://www.ebi.ac.uk/pdbsum/1dle PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dle ProSAT]</span></td></tr>
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{{STRUCTURE_1dle| PDB=1dle | SCENE= }}
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/CFAB_HUMAN CFAB_HUMAN] Defects in CFB are a cause of susceptibility to hemolytic uremic syndrome atypical type 4 (AHUS4) [MIM:[https://omim.org/entry/612924 612924]. An atypical form of hemolytic uremic syndrome. It is a complex genetic disease characterized by microangiopathic hemolytic anemia, thrombocytopenia, renal failure and absence of episodes of enterocolitis and diarrhea. In contrast to typical hemolytic uremic syndrome, atypical forms have a poorer prognosis, with higher death rates and frequent progression to end-stage renal disease. Note=Susceptibility to the development of atypical hemolytic uremic syndrome can be conferred by mutations in various components of or regulatory factors in the complement cascade system. Other genes may play a role in modifying the phenotype.<ref>PMID:17182750</ref> <ref>PMID:20513133</ref>
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== Function ==
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[https://www.uniprot.org/uniprot/CFAB_HUMAN CFAB_HUMAN] Factor B which is part of the alternate pathway of the complement system is cleaved by factor D into 2 fragments: Ba and Bb. Bb, a serine protease, then combines with complement factor 3b to generate the C3 or C5 convertase. It has also been implicated in proliferation and differentiation of preactivated B-lymphocytes, rapid spreading of peripheral blood monocytes, stimulation of lymphocyte blastogenesis and lysis of erythrocytes. Ba inhibits the proliferation of preactivated B-lymphocytes.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dl/1dle_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1dle ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Factor B and C2 are two central enzymes for complement activation. They are multidomain serine proteases and require cofactor binding for full expression of proteolytic activities. We present a 2.1 A crystal structure of the serine protease domain of factor B. It shows a number of structural motifs novel to the chymotrypsin fold, which by sequence homology are probably present in C2 as well. These motifs distribute characteristically on the protein surface. Six loops surround the active site, four of which shape substrate-binding pockets. Three loops next to the oxyanion hole, which typically mediate zymogen activation, are much shorter or absent. Three insertions including the linker to the preceding domain bulge from the side opposite to the active site. The catalytic triad and non-specific substrate-binding site display active conformations, but the oxyanion hole displays a zymogen-like conformation. The bottom of the S1 pocket has a negative charge at residue 226 instead of the typical 189 position. These unique structural features may play different roles in domain-domain interaction, cofactor binding and substrate binding.
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===FACTOR B SERINE PROTEASE DOMAIN===
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New structural motifs on the chymotrypsin fold and their potential roles in complement factor B.,Jing H, Xu Y, Carson M, Moore D, Macon KJ, Volanakis JE, Narayana SV EMBO J. 2000 Jan 17;19(2):164-73. PMID:10637221<ref>PMID:10637221</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1dle" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_10637221}}, adds the Publication Abstract to the page
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*[[Complement factor 3D structures|Complement factor 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 10637221 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_10637221}}
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__TOC__
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</StructureSection>
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==About this Structure==
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1DLE is a 2 chains structure of sequences 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=1DLE OCA].
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==Reference==
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<ref group="xtra">PMID:10637221</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Carson, M.]]
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[[Category: Large Structures]]
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[[Category: Jing, H.]]
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[[Category: Carson M]]
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[[Category: Macon, K J.]]
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[[Category: Jing H]]
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[[Category: Moore, D.]]
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[[Category: Macon KJ]]
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[[Category: Narayana, S V.]]
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[[Category: Moore D]]
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[[Category: Volanakis, J E.]]
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[[Category: Narayana SV]]
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[[Category: Xu, Y.]]
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[[Category: Volanakis JE]]
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[[Category: Activation mechanism]]
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[[Category: Xu Y]]
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[[Category: Beta-barrel fold]]
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[[Category: Complement system]]
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[[Category: Factor b]]
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[[Category: Protein-protein interaction]]
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[[Category: Serine protease]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 18:38:56 2009''
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Current revision

FACTOR B SERINE PROTEASE DOMAIN

PDB ID 1dle

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