1hkf: Difference between revisions

From Proteopedia
Jump to navigationJump to search
← Older edit
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,331,615 edits
No edit summary
OCA (talk | contribs)
Bots, Bureaucrats, journal, Administrators
3,331,615 edits
No edit summary
 
(12 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[Image:1hkf.gif|left|200px]]
<!--
The line below this paragraph, containing "STRUCTURE_1hkf", creates the "Structure Box" on the page.
You may change the PDB parameter (which sets the PDB file loaded into the applet)
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
or leave the SCENE parameter empty for the default display.
-->
{{STRUCTURE_1hkf|  PDB=1hkf  |  SCENE=  }}
'''THE THREE DIMENSIONAL STRUCTURE OF NK CELL RECEPTOR NKP44, A TRIGGERING PARTNER IN NATURAL CYTOTOXICITY'''


==The three dimensional structure of NK cell receptor Nkp44, a triggering partner in natural cytotoxicity==
<StructureSection load='1hkf' size='340' side='right'caption='[[1hkf]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1hkf]] is a 1 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=1HKF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HKF 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]] 2.2&#8491;</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=1hkf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hkf OCA], [https://pdbe.org/1hkf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hkf RCSB], [https://www.ebi.ac.uk/pdbsum/1hkf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hkf ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NCTR2_HUMAN NCTR2_HUMAN] Cytotoxicity-activating receptor that may contribute to the increased efficiency of activated natural killer (NK) cells to mediate tumor cell lysis.<ref>PMID:10049942</ref>
== 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/hk/1hkf_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=1hkf ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Natural killer (NK) cells direct cytotoxicity against tumor or virally infected cells. NK cell activation depends on a fine balance between inhibitory and activating receptors. NKp44 is a cytotoxicity activating receptor composed of one Ig-like extracellular domain, a transmembrane segment, and a cytoplasmic domain. The 2.2 A crystal structure shows that the NKp44 Ig domain forms a saddle-shaped dimer, where a charged surface groove protrudes from the core structure in each subunit. NKp44 Ig domain disulfide bridge topology defines a new Ig structural subfamily. The data presented are a first step toward understanding the molecular basis for ligand recognition by natural cytotoxicity receptors, whose key role in the immune system is established, but whose cellular ligands are still elusive.


==Overview==
The three-dimensional structure of the human NK cell receptor NKp44, a triggering partner in natural cytotoxicity.,Cantoni C, Ponassi M, Biassoni R, Conte R, Spallarossa A, Moretta A, Moretta L, Bolognesi M, Bordo D Structure. 2003 Jun;11(6):725-34. PMID:12791260<ref>PMID:12791260</ref>
Natural killer (NK) cells direct cytotoxicity against tumor or virally infected cells. NK cell activation depends on a fine balance between inhibitory and activating receptors. NKp44 is a cytotoxicity activating receptor composed of one Ig-like extracellular domain, a transmembrane segment, and a cytoplasmic domain. The 2.2 A crystal structure shows that the NKp44 Ig domain forms a saddle-shaped dimer, where a charged surface groove protrudes from the core structure in each subunit. NKp44 Ig domain disulfide bridge topology defines a new Ig structural subfamily. The data presented are a first step toward understanding the molecular basis for ligand recognition by natural cytotoxicity receptors, whose key role in the immune system is established, but whose cellular ligands are still elusive.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
1HKF is a [[Single protein]] structure of 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=1HKF OCA].
</div>
<div class="pdbe-citations 1hkf" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
The three-dimensional structure of the human NK cell receptor NKp44, a triggering partner in natural cytotoxicity., Cantoni C, Ponassi M, Biassoni R, Conte R, Spallarossa A, Moretta A, Moretta L, Bolognesi M, Bordo D, Structure. 2003 Jun;11(6):725-34. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12791260 12791260]
*[[NK cell receptor|NK cell receptor]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Biassoni, R.]]
[[Category: Biassoni R]]
[[Category: Bolognesi, M.]]
[[Category: Bolognesi M]]
[[Category: Bordo, D.]]
[[Category: Bordo D]]
[[Category: Cantoni, C.]]
[[Category: Cantoni C]]
[[Category: Conte, R.]]
[[Category: Conte R]]
[[Category: Moretta, A.]]
[[Category: Moretta A]]
[[Category: Moretta, L.]]
[[Category: Moretta L]]
[[Category: Ponassi, M.]]
[[Category: Ponassi M]]
[[Category: Spallarossa, A.]]
[[Category: Spallarossa A]]
[[Category: Immunoglobulin domain]]
[[Category: Natural cytotoxicity receptor]]
[[Category: Nkp44,receptor]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 18:56:34 2008''
Retrieved from "https://proteopedia.org/1hkf"