4ii3

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==Crystal structure of S. pombe Ubiquitin activating enzyme 1 (Uba1) in complex with ubiquitin and ATP/Mg==
==Crystal structure of S. pombe Ubiquitin activating enzyme 1 (Uba1) in complex with ubiquitin and ATP/Mg==
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<StructureSection load='4ii3' size='340' side='right' caption='[[4ii3]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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<StructureSection load='4ii3' size='340' side='right'caption='[[4ii3]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4ii3]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Fission_yeast Fission yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4II3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4II3 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4ii3]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Schizosaccharomyces_pombe_972h- Schizosaccharomyces pombe 972h-]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4II3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4II3 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4ii2|4ii2]]</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4ii3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ii3 OCA], [https://pdbe.org/4ii3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4ii3 RCSB], [https://www.ebi.ac.uk/pdbsum/4ii3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4ii3 ProSAT]</span></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ptr3, SPBC1604.21c, SPBC211.09, Ubiquitin activating enzyme 1 (Uba1) ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=284812 Fission yeast]), ubi2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=284812 Fission yeast])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ubiquitin--protein_ligase Ubiquitin--protein ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.19 6.3.2.19] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4ii3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ii3 OCA], [http://pdbe.org/4ii3 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4ii3 RCSB], [http://www.ebi.ac.uk/pdbsum/4ii3 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4ii3 ProSAT]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/UBA1_SCHPO UBA1_SCHPO]] Activates ubiquitin by first adenylating its C-terminal glycine residue with ATP, and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding an ubiquitin-E1 thioester and free AMP. [[http://www.uniprot.org/uniprot/RL402_SCHPO RL402_SCHPO]] 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, and DNA-damage responses. 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). Ribosomal protein L40 is a component of the 60S subunit of the ribosome.
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[https://www.uniprot.org/uniprot/UBA1_SCHPO UBA1_SCHPO] Activates ubiquitin by first adenylating its C-terminal glycine residue with ATP, and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding an ubiquitin-E1 thioester and free AMP.
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 4ii3" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 4ii3" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Ribosomal protein L40|Ribosomal protein L40]]
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*[[3D structures of Ubiquitin activating enzyme|3D structures of Ubiquitin activating enzyme]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Fission yeast]]
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[[Category: Large Structures]]
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[[Category: Ubiquitin--protein ligase]]
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[[Category: Schizosaccharomyces pombe 972h-]]
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[[Category: Lima, C D]]
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[[Category: Lima CD]]
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[[Category: Olsen, S K]]
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[[Category: Olsen SK]]
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[[Category: Atp binding]]
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[[Category: Atp/mg binding]]
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[[Category: Ligase]]
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[[Category: Ligase activity]]
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[[Category: Rossmann-like fold]]
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[[Category: Ubiquitin activating enzyme activity]]
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[[Category: Ubiquitin e2 binding]]
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[[Category: Ubiquitin-like fold]]
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Revision as of 20:46, 16 November 2022

Crystal structure of S. pombe Ubiquitin activating enzyme 1 (Uba1) in complex with ubiquitin and ATP/Mg

PDB ID 4ii3

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