View source for 4u17


==Swapped dimer of the human Fyn-SH2 domain==
<StructureSection load='4u17' size='340' side='right'caption='[[4u17]], [[Resolution|resolution]] 1.99&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4u17]] is a 3 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=4U17 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4U17 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]] 1.99&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=4u17 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u17 OCA], [https://pdbe.org/4u17 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4u17 RCSB], [https://www.ebi.ac.uk/pdbsum/4u17 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4u17 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/FYN_HUMAN FYN_HUMAN] Non-receptor tyrosine-protein kinase that plays a role in many biological processes including regulation of cell growth and survival, cell adhesion, integrin-mediated signaling, cytoskeletal remodeling, cell motility, immune response and axon guidance. Inactive FYN is phosphorylated on its C-terminal tail within the catalytic domain. Following activation by PKA, the protein subsequently associates with PTK2/FAK1, allowing PTK2/FAK1 phosphorylation, activation and targeting to focal adhesions. Involved in the regulation of cell adhesion and motility through phosphorylation of CTNNB1 (beta-catenin) and CTNND1 (delta-catenin). Regulates cytoskeletal remodeling by phosphorylating several proteins including the actin regulator WAS and the microtubule-associated proteins MAP2 and MAPT. Promotes cell survival by phosphorylating AGAP2/PIKE-A and preventing its apoptotic cleavage. Participates in signal transduction pathways that regulate the integrity of the glomerular slit diaphragm (an essential part of the glomerular filter of the kidney) by phosphorylating several slit diaphragm components including NPHS1, KIRREL and TRPC6. Plays a role in neural processes by phosphorylating DPYSL2, a multifunctional adapter protein within the central nervous system, ARHGAP32, a regulator for Rho family GTPases implicated in various neural functions, and SNCA, a small pre-synaptic protein. Participates in the downstream signaling pathways that lead to T-cell differentiation and proliferation following T-cell receptor (TCR) stimulation. Also participates in negative feedback regulation of TCR signaling through phosphorylation of PAG1, thereby promoting interaction between PAG1 and CSK and recruitment of CSK to lipid rafts. CSK maintains LCK and FYN in an inactive form. Promotes CD28-induced phosphorylation of VAV1.<ref>PMID:7822789</ref> <ref>PMID:7568038</ref> <ref>PMID:11005864</ref> <ref>PMID:11162638</ref> <ref>PMID:11536198</ref> <ref>PMID:12788081</ref> <ref>PMID:12640114</ref> <ref>PMID:14761972</ref> <ref>PMID:15557120</ref> <ref>PMID:14707117</ref> <ref>PMID:15536091</ref> <ref>PMID:16387660</ref> <ref>PMID:16841086</ref> <ref>PMID:17194753</ref> <ref>PMID:18056706</ref> <ref>PMID:18258597</ref> <ref>PMID:19179337</ref> <ref>PMID:19652227</ref> <ref>PMID:20100835</ref> 
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Garcia-Pino A]]
[[Category: Huculeci R]]
[[Category: Lenaerts T]]
[[Category: Van Nuland NAJ]]