Squalene synthase: Difference between revisions

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'''Squalene synthase''' (SQS) catalyzes the conversion of 2 molecules of farnesyl pyrophosphate (FPP) to the isoprenoid squalene.  SQS is part of the isoprenoid biosynthesis pathway. SQS catalysis is the first step in the sterols synthesis including cholesterol<ref>PMID:11008488</ref>.   
'''Squalene synthase''' (SQS) catalyzes the conversion of 2 molecules of farnesyl pyrophosphate (FPP) to the isoprenoid squalene.  SQS is part of the isoprenoid biosynthesis pathway. SQS catalysis is the first step in the sterols synthesis including cholesterol<ref>PMID:11008488</ref>.   
*'''Dehydrosqualene synthase''' of '''phytene synthase'''  catalyzes the condensation of farnesyl diphosphate producing presqualene diphosphate<ref>PMID:21098670</ref>.
*'''Dehydrosqualene synthase''' or '''phytene synthase'''  catalyzes the condensation of farnesyl diphosphate producing presqualene diphosphate<ref>PMID:21098670</ref>.


== Relevance ==
== Relevance ==
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==3D structures of squalene synthase==
==3D structures of squalene synthase==
 
[[Squalene synthase 3D structures]]
Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}}
{{#tree:id=OrganizedByTopic|openlevels=0|
 
*Squalene synthase
 
**[[3vj8]], [[3vjb]] – hSQS – human<br />
**[[1ezf]] – hSQS (mutant) <br />
**[[4hd1]] – SQS – ''Alicyclobacillus acidocaldarius'' <br />
 
*Squalene synthase complexes
 
**[[3lee]] – hSQS + Mg + bisphosphonate inhibitor<br />
**[[3asx]], [[3q2z]], [[3q30]] – hSQS + Mg + PO4 + inhibitor<br />
**[[3vj9]],  [[3vja]] – hSQS + Ni<br />
**[[3vjc]] – hSQS + Mg + PO4 + zaragozic acid<br />
**[[3v66]] – hSQS + PO4 + inhibitor<br />
**[[3wef]] – hSQS + FPP analog<br />
**[[3weg]] – hSQS + Mg + FPP analog<br />
**[[3weh]] – hSQS + Mg + presqualene pyrophosphate<br />
**[[3wei]] – hSQS (mutant) + Mn + presqualene pyrophosphate<br />
**[[3wej]], [[3wek]] – hSQS (mutant) + Mg + presqualene pyrophosphate<br />
**[[3wc9]] – hSQS (mutant) + farnesyl thiopyrophosphate<br />
**[[3wcd]] – hSQS (mutant) + phenoxy thiocyanate derivative<br />
**[[3wcf]], [[3wch]], [[3wci]], [[3wcl]] – hSQS (mutant) + imidazole phosphonate derivative<br />
**[[3wcj]] – hSQS (mutant) + pyrrolidine derivative<br />
**[[3wcm]] – hSQS (mutant) + pyridine derivative<br />
**[[3wsa]], [[3wsb]] – hSQS (mutant) + tuberculosis drug<br />
**[[3wef]], [[3weg]] – hSQS + FPP analog <br />
**[[3weh]] – hSQS + presqualene pyrophosphate <br />
**[[3wei]], [[3wej]], [[3wek]] – hSQS (mutant) + presqualene pyrophosphate <br />
**[[3wca]], [[3wcb]], [[3wcc]], [[3wce]], [[3wcg]] – SQS (mutant) + FPP analog – ''Trypanosoma cruzi''<br />
**[[7wgi]] – AfSQS + PO4 + indole – ''Aspergillus flavus''<br />
**[[7wgh]] – AfSQS (mutant) + POP + PO4 +farnesyl thiopyrophosphate<br />
 
*Dehydrosqualene synthase (DSQS)
**[[3vjd]], [[2zco]] – SaDSQS – ''Staphylococcus aureus'' <br />
**[[3nri]] – SaDSQS + dehydrosqualene <br />
**[[3npr]], [[3adz]] – SaSQS + presqualene pyrophosphate <br />
**[[3lgz]] – SaSQS (mutant) + presqualene pyrophosphate <br />
**[[3vje]] – SaDSQS (mutant) + zaragozic acid <br />
**[[3ae0]] – SaDSQS + geranylgeranyl + thiopyrophosphate <br />
**[[3w7f]], [[5yis]] – SaDSQS + farnesyl + thiopyrophosphate <br />
**[[3acw]], [[3acx]], [[3acy]], [[3tfv]], [[3tfn]], [[3tfp]], [[4f6v]], [[4f6x]], [[2zcs]], [[2zcq]], [[2zy1]], [[2zcr]], [[4e9z]], [[4e9u]], [[4ea0]], [[4ea1]], [[4ea2]] – SaDSQS + inhibitor<br />
 
}}


== References ==
== References ==

Latest revision as of 07:47, 14 August 2024

Structure of SQS complex with FPP analog and Mg+2 ions (green) (PDB code 3wca).

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Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky