This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1j1x
From Proteopedia
(Difference between revisions)
| (15 intermediate revisions not shown.) | |||
| Line 1: | Line 1: | ||
| - | [[Image:1j1x.gif|left|200px]]<br /><applet load="1j1x" size="350" color="white" frame="true" align="right" spinBox="true" | ||
| - | caption="1j1x, resolution 1.8Å" /> | ||
| - | '''Crystal Structure of HyHEL-10 Fv mutant LS93A complexed with hen egg white lysozyme'''<br /> | ||
| - | == | + | ==Crystal Structure of HyHEL-10 Fv mutant LS93A complexed with hen egg white lysozyme== |
| + | <StructureSection load='1j1x' size='340' side='right'caption='[[1j1x]], [[Resolution|resolution]] 1.80Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1j1x]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1J1X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1J1X 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]] 1.8Å</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=1j1x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1j1x OCA], [https://pdbe.org/1j1x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1j1x RCSB], [https://www.ebi.ac.uk/pdbsum/1j1x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1j1x ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/KV5A9_MOUSE KV5A9_MOUSE] | ||
| + | == 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/j1/1j1x_consurf.spt"</scriptWhenChecked> | ||
| + | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1j1x ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
To study the role of hydrogen bonding via interfacial water molecules in protein-protein interactions, we examined the interaction between hen egg white lysozyme (HEL) and its HyHEL-10 variable domain fragment (Fv) antibody. We constructed three antibody mutants (l-Y50F, l-S91A, and l-S93A) and investigated the interactions between the mutant Fvs and HEL. Isothermal titration calorimetry indicated that the mutations significantly decreased the negative enthalpy change (8-25 kJ mol(-1)), despite some offset by a favorable entropy change. X-ray crystallography demonstrated that the complexes had nearly identical structures, including the positions of the interfacial water molecules. Taken together, the isothermal titration calorimetric and x-ray crystallographic results indicate that hydrogen bonding via interfacial water enthalpically contributes to the Fv-HEL interaction despite the partial offset because of entropy loss, suggesting that hydrogen bonding stiffens the antigen-antibody complex. | To study the role of hydrogen bonding via interfacial water molecules in protein-protein interactions, we examined the interaction between hen egg white lysozyme (HEL) and its HyHEL-10 variable domain fragment (Fv) antibody. We constructed three antibody mutants (l-Y50F, l-S91A, and l-S93A) and investigated the interactions between the mutant Fvs and HEL. Isothermal titration calorimetry indicated that the mutations significantly decreased the negative enthalpy change (8-25 kJ mol(-1)), despite some offset by a favorable entropy change. X-ray crystallography demonstrated that the complexes had nearly identical structures, including the positions of the interfacial water molecules. Taken together, the isothermal titration calorimetric and x-ray crystallographic results indicate that hydrogen bonding via interfacial water enthalpically contributes to the Fv-HEL interaction despite the partial offset because of entropy loss, suggesting that hydrogen bonding stiffens the antigen-antibody complex. | ||
| - | + | The role of hydrogen bonding via interfacial water molecules in antigen-antibody complexation. The HyHEL-10-HEL interaction.,Yokota A, Tsumoto K, Shiroishi M, Kondo H, Kumagai I J Biol Chem. 2003 Feb 14;278(7):5410-8. Epub 2002 Nov 19. PMID:12444085<ref>PMID:12444085</ref> | |
| - | + | ||
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| + | <div class="pdbe-citations 1j1x" style="background-color:#fffaf0;"></div> | ||
| + | |||
| + | ==See Also== | ||
| + | *[[Lysozyme 3D structures|Lysozyme 3D structures]] | ||
| + | *[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]] | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
[[Category: Gallus gallus]] | [[Category: Gallus gallus]] | ||
| - | [[Category: | + | [[Category: Large Structures]] |
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
| - | + | [[Category: Kondo H]] | |
| - | [[Category: Kondo | + | [[Category: Kumagai I]] |
| - | [[Category: Kumagai | + | [[Category: Shiroishi M]] |
| - | [[Category: Shiroishi | + | [[Category: Tsumoto K]] |
| - | [[Category: Tsumoto | + | [[Category: Yokota A]] |
| - | [[Category: Yokota | + | |
| - | + | ||
| - | + | ||
| - | + | ||
Current revision
Crystal Structure of HyHEL-10 Fv mutant LS93A complexed with hen egg white lysozyme
| |||||||||||
