View source for 1fbz


==Structure-based design of a novel, osteoclast-selective, nonpeptide Src SH2 inhibitor with in vivo anti-resorptive activity==
<StructureSection load='1fbz' size='340' side='right'caption='[[1fbz]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1fbz]] 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=1FBZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FBZ 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]] 2.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CC1:{4-[2-ACETYLAMINO-2-(3-CARBAMOYL-2-CYCLOHEXYLMETHOXY-6,7,8,9-TETRAHYDRO-5H-BENZOCYCLOHEPTEN-5YLCARBAMOYL)-ETHYL]-2-PHOSPHONO-PHENYL}-PHOSPHONIC+ACID'>CC1</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=1fbz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fbz OCA], [https://pdbe.org/1fbz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fbz RCSB], [https://www.ebi.ac.uk/pdbsum/1fbz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fbz ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/LCK_HUMAN LCK_HUMAN] Severe combined immunodeficiency due to LCK deficiency. Note=A chromosomal aberration involving LCK is found in leukemias. Translocation t(1;7)(p34;q34) with TCRB.
== Function ==
[https://www.uniprot.org/uniprot/LCK_HUMAN LCK_HUMAN] Non-receptor tyrosine-protein kinase that plays an essential role in the selection and maturation of developing T-cells in the thymus and in the function of mature T-cells. Plays a key role in T-cell antigen receptor (TCR)-linked signal transduction pathways. Constitutively associated with the cytoplasmic portions of the CD4 and CD8 surface receptors. Association of the TCR with a peptide antigen-bound MHC complex facilitates the interaction of CD4 and CD8 with MHC class II and class I molecules, respectively, thereby recruiting the associated LCK protein to the vicinity of the TCR/CD3 complex. LCK then phosphorylates tyrosines residues within the immunoreceptor tyrosine-based activation motifs (ITAM) of the cytoplasmic tails of the TCR-gamma chains and CD3 subunits, initiating the TCR/CD3 signaling pathway. Once stimulated, the TCR recruits the tyrosine kinase ZAP70, that becomes phosphorylated and activated by LCK. Following this, a large number of signaling molecules are recruited, ultimately leading to lymphokine production. LCK also contributes to signaling by other receptor molecules. Associates directly with the cytoplasmic tail of CD2, which leads to hyperphosphorylation and activation of LCK. Also plays a role in the IL2 receptor-linked signaling pathway that controls the T-cell proliferative response. Binding of IL2 to its receptor results in increased activity of LCK. Is expressed at all stages of thymocyte development and is required for the regulation of maturation events that are governed by both pre-TCR and mature alpha beta TCR. Phosphorylates other substrates including RUNX3, PTK2B/PYK2, the microtubule-associated protein MAPT, RHOH or TYROBP.<ref>PMID:16339550</ref> <ref>PMID:16709819</ref> <ref>PMID:20100835</ref> <ref>PMID:20028775</ref> <ref>PMID:20851766</ref> <ref>PMID:21269457</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/fb/1fbz_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=1fbz ConSurf].
<div style="clear:both"></div>

==See Also==
*[[Tyrosine kinase 3D structures|Tyrosine kinase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Adams S]]
[[Category: Bartlett C]]
[[Category: Bohacek R]]
[[Category: Cerasoli F]]
[[Category: Dalgarno D]]
[[Category: Guan W]]
[[Category: Haraldson C]]
[[Category: Hatada M]]
[[Category: Herson J]]
[[Category: Iuliucci J]]
[[Category: Lu X]]
[[Category: Merry T]]
[[Category: Metcalf C]]
[[Category: Narula S]]
[[Category: Pradeepan S]]
[[Category: Sawyer T]]
[[Category: Shakespeare W]]
[[Category: Smith J]]
[[Category: Stebbis K]]
[[Category: Sundaramoorthi R]]
[[Category: Van Schravendijk MR]]
[[Category: Violette S]]
[[Category: Vu C]]
[[Category: Weigele M]]
[[Category: Yang M]]