1v81: Difference between revisions
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==Solution structures of ubiquitin at 30 bar and 3 kbar== | ==Solution structures of ubiquitin at 30 bar and 3 kbar== | ||
<StructureSection load='1v81' size='340' side='right'caption='[[1v81 | <StructureSection load='1v81' size='340' side='right'caption='[[1v81]]' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1v81]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[1v81]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1V81 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1V81 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1v81 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1v81 OCA], [https://pdbe.org/1v81 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1v81 RCSB], [https://www.ebi.ac.uk/pdbsum/1v81 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1v81 ProSAT], [https://www.topsan.org/Proteins/RSGI/1v81 TOPSAN]</span></td></tr> | ||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/UBC_BOVIN UBC_BOVIN] Ubiquitin: Exists either covalently attached to another protein, or free (unanchored). When covalently bound, it is conjugated to target proteins via an isopeptide bond either as a monomer (monoubiquitin), a polymer linked via different Lys residues of the ubiquitin (polyubiquitin chains) or a linear polymer linked via the initiator Met of the ubiquitin (linear polyubiquitin chains). Polyubiquitin chains, when attached to a target protein, have different functions depending on the Lys residue of the ubiquitin that is linked: Lys-6-linked may be involved in DNA repair; Lys-11-linked is involved in ERAD (endoplasmic reticulum-associated degradation) and in cell-cycle regulation; Lys-29-linked is involved in lysosomal degradation; Lys-33-linked is involved in kinase modification; Lys-48-linked is involved in protein degradation via the proteasome; Lys-63-linked is involved in endocytosis, DNA-damage responses as well as in signaling processes leading to activation of the transcription factor NF-kappa-B. Linear polymer chains formed via attachment by the initiator Met lead to cell signaling. Ubiquitin is usually conjugated to Lys residues of target proteins, however, in rare cases, conjugation to Cys or Ser residues has been observed. When polyubiquitin is free (unanchored-polyubiquitin), it also has distinct roles, such as in activation of protein kinases, and in signaling (By similarity). | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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==See Also== | ==See Also== | ||
*[[Ribosomal protein L40|Ribosomal protein L40]] | *[[Ribosomal protein L40|Ribosomal protein L40]] | ||
*[[ | *[[3D structures of ubiquitin|3D structures of ubiquitin]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Akasaka | [[Category: Akasaka K]] | ||
[[Category: Kitahara | [[Category: Kitahara R]] | ||
[[Category: Yokoyama S]] | |||
[[Category: Yokoyama | |||