View source for 5vpk


==CRYSTAL STRUCTURE OF MITE ALLERGEN DER F 1==
<StructureSection load='5vpk' size='340' side='right'caption='[[5vpk]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5vpk]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Dermatophagoides_farinae Dermatophagoides farinae]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=3d6s 3d6s]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VPK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VPK 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&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=5vpk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vpk OCA], [https://pdbe.org/5vpk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vpk RCSB], [https://www.ebi.ac.uk/pdbsum/5vpk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vpk ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PEPT1_DERFA PEPT1_DERFA] Thiol protease that hydrolyzes proteins, with a preference for Phe or basic residues.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The group 1 mite allergens Der f 1 and Der p 1 are potent allergens excreted by Dermatophagoides farinae and Dermatophagoides pteronyssinus, respectively. The human immunoglobulin E antibody responses to the group 1 allergens show more cross-reactivity than the murine immunoglobulin G antibody responses, which are largely species specific. Here, we report the crystal structure of the mature form of Der f 1, which was isolated from its natural source, and a new high-resolution structure of mature recombinant Der p 1. Unlike Der p 1, Der f 1 is monomeric both in the crystalline state and in solution. Moreover, no metal binding is observed in the structure of Der f 1 despite the fact that all amino acids involved in Ca(2+) binding in Der p 1 are completely conserved in Der f 1. Although Der p 1 and Der f 1 share an extensive sequence identity, comparison of the crystal structures of both allergens revealed structural features that could explain the differences in murine IgG and human IgE antibody responses to these allergens. There are structural differences between Der f 1 and Der p 1 that are unevenly distributed on the allergens' surfaces. This uneven spatial arrangement of conserved versus altered residues could explain both the specificity and cross-reactivity of antibodies against Der f 1 and Der p 1.

Crystal structures of mite allergens Der f 1 and Der p 1 reveal differences in surface-exposed residues that may influence antibody binding.,Chruszcz M, Chapman MD, Vailes LD, Stura EA, Saint-Remy JM, Minor W, Pomes A J Mol Biol. 2009 Feb 20;386(2):520-30. Epub 2008 Dec 30. PMID:19136006<ref>PMID:19136006</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5vpk" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Dermatophagoides farinae]]
[[Category: Large Structures]]
[[Category: Chapman MD]]
[[Category: Chruszcz M]]
[[Category: Minor W]]
[[Category: Pomes A]]
[[Category: Vailes LD]]