4e0s: Difference between revisions

From Proteopedia
Jump to navigationJump to search
OCA (talk | contribs)
No edit summary
OCA (talk | contribs)
No edit summary
 
(4 intermediate revisions by the same user not shown)
Line 1: Line 1:


==Crystal Structure of C5b-6==
==Crystal Structure of C5b-6==
<StructureSection load='4e0s' size='340' side='right' caption='[[4e0s]], [[Resolution|resolution]] 4.21&Aring;' scene=''>
<StructureSection load='4e0s' size='340' side='right'caption='[[4e0s]], [[Resolution|resolution]] 4.21&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4e0s]] is a 2 chain structure with 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=4E0S OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4E0S FirstGlance]. <br>
<table><tr><td colspan='2'>[[4e0s]] 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=4E0S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4E0S FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 4.21&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4e0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4e0s OCA], [http://pdbe.org/4e0s PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4e0s RCSB], [http://www.ebi.ac.uk/pdbsum/4e0s PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4e0s ProSAT]</span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=4e0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4e0s OCA], [https://pdbe.org/4e0s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4e0s RCSB], [https://www.ebi.ac.uk/pdbsum/4e0s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4e0s ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[http://www.uniprot.org/uniprot/CO5_HUMAN CO5_HUMAN]] Defects in C5 are the cause of complement component 5 deficiency (C5D) [MIM:[http://omim.org/entry/609536 609536]]. A rare defect of the complement classical pathway associated with susceptibility to severe recurrent infections, predominantly by Neisseria gonorrhoeae or Neisseria meningitidis.  Note=An association study of C5 haplotypes and genotypes in individuals with chronic hepatitis C virus infection shows that individuals homozygous for the C5_1 haplotype have a significantly higher stage of liver fibrosis than individuals carrying at least 1 other allele (PubMed:15995705). [[http://www.uniprot.org/uniprot/CO6_HUMAN CO6_HUMAN]] Defects in C6 are the cause of complement component 6 deficiency (C6D) [MIM:[http://omim.org/entry/612446 612446]]. A rare defect of the complement classical pathway associated with susceptibility to severe recurrent infections, predominantly by Neisseria gonorrhoeae or Neisseria meningitidis.  
[https://www.uniprot.org/uniprot/CO5_HUMAN CO5_HUMAN] Defects in C5 are the cause of complement component 5 deficiency (C5D) [MIM:[https://omim.org/entry/609536 609536]. A rare defect of the complement classical pathway associated with susceptibility to severe recurrent infections, predominantly by Neisseria gonorrhoeae or Neisseria meningitidis.  Note=An association study of C5 haplotypes and genotypes in individuals with chronic hepatitis C virus infection shows that individuals homozygous for the C5_1 haplotype have a significantly higher stage of liver fibrosis than individuals carrying at least 1 other allele (PubMed:15995705).
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/CO5_HUMAN CO5_HUMAN]] Activation of C5 by a C5 convertase initiates the spontaneous assembly of the late complement components, C5-C9, into the membrane attack complex. C5b has a transient binding site for C6. The C5b-C6 complex is the foundation upon which the lytic complex is assembled.  Derived from proteolytic degradation of complement C5, C5 anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes. C5a also stimulates the locomotion of polymorphonuclear leukocytes (chemokinesis) and direct their migration toward sites of inflammation (chemotaxis). [[http://www.uniprot.org/uniprot/CO6_HUMAN CO6_HUMAN]] Constituent of the membrane attack complex (MAC) that plays a key role in the innate and adaptive immune response by forming pores in the plasma membrane of target cells.  
[https://www.uniprot.org/uniprot/CO5_HUMAN CO5_HUMAN] Activation of C5 by a C5 convertase initiates the spontaneous assembly of the late complement components, C5-C9, into the membrane attack complex. C5b has a transient binding site for C6. The C5b-C6 complex is the foundation upon which the lytic complex is assembled.  Derived from proteolytic degradation of complement C5, C5 anaphylatoxin is a mediator of local inflammatory process. It induces the contraction of smooth muscle, increases vascular permeability and causes histamine release from mast cells and basophilic leukocytes. C5a also stimulates the locomotion of polymorphonuclear leukocytes (chemokinesis) and direct their migration toward sites of inflammation (chemotaxis).
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
Line 22: Line 23:


==See Also==
==See Also==
*[[Complement C5|Complement C5]]
*[[Complement C5 3D structures|Complement C5 3D structures]]
== References ==
== References ==
<references/>
<references/>
Line 28: Line 29:
</StructureSection>
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Aleshin, A E]]
[[Category: Large Structures]]
[[Category: DiScipio, R]]
[[Category: Aleshin AE]]
[[Category: Liddington, R C]]
[[Category: DiScipio R]]
[[Category: Stec, B]]
[[Category: Liddington RC]]
[[Category: Complement]]
[[Category: Stec B]]
[[Category: Immune system]]
[[Category: Mac]]