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Chaperonin

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<StructureSection load='' size='350' side='right' caption='E. coli GroEL (green)/GroES (magenta) complex with ADP, AlF3, Mg+2 and K+ ions (PDB entry [[1pcq]])' scene='44/445432/Cv/1'>
[[Image:1pcq.png|left|200px|thumb|Crystal Structure of Chaperonin, [[1pcq]]]]
[[Image:1pcq.png|left|200px|thumb|Crystal Structure of Chaperonin, [[1pcq]]]]
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{{STRUCTURE_1pcq| PDB=1pcq | SIZE=400| SCENE=Chaperonin/Groel_groes_comnplex/1 |right|CAPTION=GroEL/GroES complex, [[1pcq]] }}
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'''Chaperonins''' (Cpn) are oligomeric proteins that mediate the folding of polypeptide chains. '''Group I CPN''' are found in bacteria, chloroplasts and mitochondria. For an introductory overview, see [http://en.wikipedia.org/wiki/Chaperonins Chaperonins in Wikipedia].
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'''Chaperonins''' (CPN) are oligomeric proteins that mediate the folding of polypeptide chains. Group I CPN are found in bacteria, chloroplasts and mitochondria. For an introductory overview, see [http://en.wikipedia.org/wiki/Chaperonins Chaperonins in Wikipedia].
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The most characterized Cpn are in the GroEL/GroES complex from ''Escherichia coli'' and Cpn60/Cpn10 from ''Thermus thermophilus''.<ref>PMID:18987317</ref> The larger subunit (GroEL, Cpn60) contains 3 domains: apical, intermediate and equatorial domain. The apical domain is the one which binds the polypeptide substrate. The equatorial domains binds the nucleotide. '''Group II Cpns''' are found in eukaryotic cytosol and archaea. '''Thermosome''' is a Cpn complex found in archaea.<ref>PMID:9546398</ref> '''CCT''' or '''TRiC''' is a Cpn complex found in eukarya.<ref>PMID:22503819</ref>
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*<scene name='44/445432/Cv/2'>E. coli GroEL/GroES complex</scene> (GroEL in green, GroES in magenta, PDB entry [[1pcq]]).
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The most characterized CPN are in the GroEL/GroES complex from ''Escherichia coli'' and CPN60/CPN10 from ''Thermus thermophilus''. The larger subunit (GroEL, CPN60) contains 3 domains. The apical domain is the one which binds the substrate. Group II CPNs are found in eukaryotic cytosol and archaea. Thermosome is a CPN complex found in archaea. CCT is a CPN complex found in eukarya.
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*<scene name='44/445432/Cv/3'>GroEL/GroES complex with ADP, AlF3, Mg+2 and K+ ions</scene>.
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*<scene name='44/445432/Cv/5'>K+ ion coordination site</scene>. GroEL in cyan.
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{{TOC limit|limit=2}}
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*<scene name='44/445432/Cv/6'>AlF3 binding site</scene>.
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*<scene name='44/445432/Cv/7'>Mg+2 ion coordination site</scene>.
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*<scene name='44/445432/Cv/9'>ADP binding site</scene>.
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*<scene name='44/445432/Cv/10'>Whole binding site</scene>.
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*See also [[Chaperones]].<br />
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*For GroEl in Hebrew see [[Sand box groel]].
== 3D Structures of Chaperonin ==
== 3D Structures of Chaperonin ==
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[[Chaperonin 3D structures]]
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''Updated June 2012''
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== Files for 3D printer ==
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<i class="fas fa-cubes"></i> Asymmetric Chaperonin Complex GroEL/GroES by [[User:Marius Mihasan|Marius Mihasan]] [https://3dprint.nih.gov/discover/3dpx-017057 <i class="fas fa-download"></i>]
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===Group I===
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''Large subunit''
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[[3m6c]] – MtGroEL1 apical domain – ''Mycobacterium tuberculosis''<BR />
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[[1sjp]], [[3rtk]] – MtGroEL2 residues 42-539<BR />
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[[3fbh]], [[2eu1]], [[1j4z]], [[1kpo]], [[1oel]], [[1grl]], [[2yey]] – EcGroEL (mutant) - ''Escherichia coli''<BR />
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[[3e76]], [[2nwc]], [[1xck]], [[1ss8]] – EcGroEL<BR />
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[[3c9v]], [[3cau]] – EcGroEL – Cryo EM<BR />
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[[2c7e]], [[1gr5]] - EcGroEL (mutant) – Cryo EM<BR />
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[[1dk7]] - EcGroEL apical domain<br />
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[[1fy9]], [[1fya]], [[1kid]], [[1jon]] – EcGroEL apical domain (mutant) <BR />
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[[1srv]] – TtCPN60 apical domain - ''Thermus thermophilus''<BR />
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[[3osx]] - CPN60 apical domain – ''Xenorhabdus nematophila''<br />
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[[1iok]] – CPN60 – ''Paracoccus denitrificans''
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''Large subunit binary complex''
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[[1kp8]] - EcGroEL (mutant) + ATP<BR />
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[[1sx3]] - EcGroEL + ATP<BR />
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[[1sx4]] - EcGroEL + ADP<BR />
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[[1mnf]] – EcGroEL + polypeptide<BR />
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[[2cgt]] – EcGroEL + capsid assbly protein GP31 – EM<BR />
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[[1dkd]] - EcGroEL apical domain + polypeptide
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''Small subunit''
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[[3nx6]] – GroES residues 40-134 (mutant) – ''Xanthomonas oryzae''<BR />
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[[1wnr]] – TtCPN10 residues 1-94<BR />
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[[1p3h]], [[1hx5]] – MtCPN10<BR />
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[[1p82]], [[1p83]] - MtCPN10 residues 1-25 - NMR<BR />
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[[1egs]] - GroES residues 19-27 - NMR
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''Large + small subunit''
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[[1svt]], [[1pcq]] - EcGroEL + GroES<BR />
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[[1pf9]], [[1aon]] - EcGroEL + GroES + ADP<BR />
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[[2c7c]], [[2c7d]] - EcGroEL + GroES – Cryo EM<BR />
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[[1gru]] - EcGroEL + GroES + ATP + ADP – Cryo EM<BR />
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[[1we3]] – TtCPN60 + CPN10<BR />
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[[1wf4]] - TtCPN60 + CPN10 + ADP
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===Group II===
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[[3izh]], [[3izi]], [[3izj]], [[3izk]], [[3izl]], [[3izm]], [[3izn]], [[3los]], [[3iyf]] – MmCPN – ''Methanococcus maripaludis'' – EM<BR />
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[[3kfb]], [[3kfe]], [[3kfk]] – MmCPN<BR />
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[[3j02]], [[3j03]] – MmCPN (mutant) – Cryo EM<br />
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[[3ruq]] - MmCPN + ADP<br />
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[[3rus]] - MmCPN (mutant) + ADP<br />
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[[3ruw]] - MmCPN (mutant) + ADP-AlF3<br />
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[[3ruv]] - MmCPN (mutant) + ATP analog<br />
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[[1q2v]], [[1q3r]] – TkCPN α subunit (mutant) – ''Thermococcus'' KS-1<BR />
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[[1q3q]] - TkCPN α subunit (mutant) + AMP-PNP<BR />
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[[1q3s]] - TkCPN α subunit (mutant) + ADP
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''CCT''
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[[2xsm]] – bCPN CCT – bovine<BR />
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[[3p9d]], [[3p9e]] – CPN CCT - yeast<br />
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[[3iyg]] - bCPN CCT – Cryo EM<BR />
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[[3ktt]] - bCPN CCT β subunit – Cryo EM<BR />
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[[1gml]], [[1gn1]] - CPN CCT γ subunit apical domain – mouse
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''Hsp33''
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[[3m7m]], [[1hw7]] – EcCPN Hsp33 N-terminal<BR />
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[[1xjh]] - EcCPN Hsp33 C terminal - NMR<BR />
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[[1vq0]] - CPN Hsp33 – ''Thermotoga maritima''<BR />
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[[1vzy]] - CPN Hsp33 (mutant) – ''Bacillus subtilis''
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''Thermosome''
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[[1a6d]] - TaTherm α+β subunits – ''Thermoplasma acidophilum''<BR />
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[[1a6e]] - TaTherm α+β subunits + ADP<BR />
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[[1ass]], [[1asx]] - TaTherm α apical domain<BR />
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[[1e0r]] – TaTherm β apical domain<br />
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[[3ko1]] – Therm – ''Acidianus tengchongensis''<br />
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[[3aq1]] – Therm – ''Methanococcoides burtonii''<br />
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[[1lep]] – CPN-10 – ''Mycobacterium leprae''
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</StructureSection>
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== References ==
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<references/>
[[Category:Topic Page]]
[[Category:Topic Page]]
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[[Category:3D printer files]]

Current revision

E. coli GroEL (green)/GroES (magenta) complex with ADP, AlF3, Mg+2 and K+ ions (PDB entry 1pcq)

Drag the structure with the mouse to rotate

References

  1. ↑ Apetri AC, Horwich AL. Chaperonin chamber accelerates protein folding through passive action of preventing aggregation. Proc Natl Acad Sci U S A. 2008 Nov 11;105(45):17351-5. doi:, 10.1073/pnas.0809794105. Epub 2008 Nov 5. PMID:18987317 doi:http://dx.doi.org/10.1073/pnas.0809794105
  2. ↑ Ditzel L, Lowe J, Stock D, Stetter KO, Huber H, Huber R, Steinbacher S. Crystal structure of the thermosome, the archaeal chaperonin and homolog of CCT. Cell. 1998 Apr 3;93(1):125-38. PMID:9546398
  3. ↑ Leitner A, Joachimiak LA, Bracher A, Monkemeyer L, Walzthoeni T, Chen B, Pechmann S, Holmes S, Cong Y, Ma B, Ludtke S, Chiu W, Hartl FU, Aebersold R, Frydman J. The Molecular Architecture of the Eukaryotic Chaperonin TRiC/CCT. Structure. 2012 May 9;20(5):814-25. Epub 2012 Apr 12. PMID:22503819 doi:10.1016/j.str.2012.03.007
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