Chaperonin: Difference between revisions

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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]]]]
{{STRUCTURE_1pcq| PDB=1pcq | SIZE=300| SCENE=Chaperonin/Groel_groes_comnplex/1 |right|CAPTION=GroEL/GroES complex, [[1pcq]] }}
'''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].


Chaperonin (CPN) are oligomeric proteins which mediate the folding of polypeptide chains.  Group I CPNs are found in bacteria, chloroplasts and mitochondria.  They include the most characterized 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.
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 during mitosis in eukaryotic cytosol and archaea.   
{{TOC limit|limit=2}}
*'''Thermosome''' is a Cpn complex found in archaea.<ref>PMID:9546398</ref>  
*'''CCT''' or '''TRiC''' is a Cpn complex found in eukarya believed to be involved in uncontrolled proliferation.<ref>PMID:22503819</ref>, <ref>PMID:32297209</ref>
*<scene name='44/445432/Cv/2'>E. coli GroEL/GroES complex</scene> (GroEL in green, GroES in magenta, PDB entry [[1pcq]]).
*<scene name='44/445432/Cv/3'>GroEL/GroES complex with ADP, AlF3, Mg+2 and K+ ions</scene>.
*<scene name='44/445432/Cv/5'>K+ ion coordination site</scene>. GroEL in cyan.
*<scene name='44/445432/Cv/6'>AlF3 binding site</scene>.
*<scene name='44/445432/Cv/7'>Mg+2 ion coordination site</scene>.
*<scene name='44/445432/Cv/9'>ADP binding site</scene>.
*<scene name='44/445432/Cv/10'>Whole binding site</scene>.
*See also [[Chaperones]].<br />
*For GroEl in Hebrew see [[Sand box groel]].


== 3D Structures of Chaperonin ==
== 3D Structures of Chaperonin ==
[[Chaperonin 3D structures]]


''Update June 2011''
== Files for 3D printer ==  
 
<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>]
===Group I===
 
''Large subunit''
 
[[3m6c]] – MtGroEL1 apical domain – ''Mycobacterium tuberculosis''<BR />
[[1sjp]] – MtGroEL2 residues 42-539<BR />
[[3fbh]], [[2eu1]], [[1j4z]], [[1kpo]], [[1oel]], [[1grl]], [[2yey]] – EcGroEL (mutant) - ''Escherichia coli''<BR />
[[3e76]], [[2nwc]], [[1xck]], [[1ss8]] – EcGroEL<BR />
[[3c9v]], [[3cau]] – EcGroEL – Cryo EM<BR />
[[2c7e]], [[1gr5]] - EcGroEL (mutant) – Cryo EM<BR />
[[1kp8]] - EcGroEL (mutant) + ATP<BR />
[[1sx3]] - EcGroEL + ATP<BR />
[[1sx4]] - EcGroEL + ADP<BR />
[[1mnf]] – EcGroEL + polypeptide<BR />
[[2cgt]] – EcGroEL + capsid assbly protein GP31 – EM<BR />
[[1fy9]], [[1fya]], [[1kid]] – EcGroEL apical domain (mutant) <BR />
[[1srv]] – TtCPN60 apical domain - ''Thermus thermophilus''<BR />
[[1iok]] – CPN60 – ''Paracoccus denitrificans''
 
''Small subunit''
 
[[3nx6]] – GroES residues 40-134 (mutant) – ''Xanthomonas oryzae''<BR />
[[1wnr]] – TtCPN10 residues 1-94<BR />
[[1p3h]], [[1hx5]] – MtCPN10<BR />
[[1p82]], [[1p83]] - MtCPN10 residues 1-25 - NMR<BR />
[[1egs]] - GroES residues 19-27 - NMR
 
''Large + small subunit''
 
[[1svt]], [[1pcq]] - EcGroEL + GroES<BR />
[[1pf9]], [[1aon]] - EcGroEL + GroES + ADP<BR />
[[2c7c]], [[2c7d]] - EcGroEL + GroES – Cryo EM<BR />
[[1gru]] - EcGroEL + GroES + ATP + ADP – Cryo EM<BR />
[[1we3]] – TtCPN60 + CPN10<BR />
[[1wf4]] - TtCPN60 + CPN10 + ADP
 
===Group II===
 
[[3izh]], [[3izi]], [[3izj]], [[3izk]], [[3izl]], [[3izm]], [[3izn]], [[3los]], [[3iyf]] – MmCPN – ''Methanococcus maripaludis'' – EM<BR />
[[3kfb]], [[3kfe]], [[3kfk]] – MmCPN<BR />
[[1q2v]], [[1q3r]] – TkCPN α subunit (mutant) – ''Thermococcus'' KS-1<BR />
[[1q3q]] - TkCPN α subunit (mutant) + AMP-PNP<BR />
[[1q3s]] - TkCPN α subunit (mutant) + ADP
 
''CCT''
 
[[2xsm]] – bCPN CCT – bovine<BR />
[[3iyg]] - bCPN CCT – Cryo EM<BR />
[[3ktt]] - bCPN CCT β subunit – Cryo EM<BR />
[[1gml]], [[1gn1]] - CPN CCT γ subunit apical domain – mouse
 
''Hsp33''
 
[[3m7m]], [[1hw7]] – EcCPN Hsp33 N-terminal<BR />
[[1xjh]] - EcCPN Hsp33 C terminal - NMR<BR />
[[1vq0]] - CPN Hsp33 – Thermotoga maritime<BR />
[[1vzy]] - CPN Hsp33 (mutant) – ''Bacillus subtilis''
 
''Thermosome''
 
[[1a6d]] - TaTherm α+β subunits – ''Thermoplasma acidophilum''<BR />
[[1a6e]] - TaTherm α+β subunits + ADP<BR />
[[1ass]], [[1asx]] - TaTherm α apical domain<BR />
[[1e0r]] – TaTherm β apical domain<br />
[[3ko1]] – Therm – ''Acidianus tengchongensis''
 
[[1lep]] – CPN-10 – ''Mycobacterium leprae''
 
 
 
 
 
 


</StructureSection>


[Category:Topic Page]]
== References ==
<references/>
[[Category:Topic Page]]
[[Category:3D printer files]]

Latest revision as of 07:22, 3 June 2024

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