EPSP synthase: Difference between revisions

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== Structure of EPSP Synthase ==
== Structure of EPSP Synthase ==
<StructureSection load='1eps' size='350' side='right' caption='Structure of EPSP synthase (PDB entry [[1eps]])' scene=''>
<StructureSection load='1eps' size='350' side='right' caption='Structure of EPSP synthase (PDB entry [[1eps]])' scene=''>
== Function ==


'''5-enolpyruvylshikimate 3-phosphate (EPSP) synthase''' is a key enzyme for the biosynthesis of aromatic amino acids in plants and many microbes.  Consequently, it is a target for drugs and herbicides. EPSP synthase catalyzes the addition of phosphoenol pyruvate (PEP) to shikimate-3-phosphate, generating 5-enolpyruvylshikimate-3-phosphate, which is a precursor for phenylalanine and tyrosine.  
'''5-enolpyruvylshikimate 3-phosphate (EPSP) synthase''' is a key enzyme for the biosynthesis of aromatic amino acids in plants and many microbes.  Consequently. EPSP synthase catalyzes the addition of phosphoenol pyruvate (PEP) to shikimate-3-phosphate, generating 5-enolpyruvylshikimate-3-phosphate, which is a precursor for phenylalanine and tyrosine<ref>PMID:16225867</ref>.
 
== Relevance ==
 
EPSP synthase is a target for drugs and herbicides.
 
== Structural insights ==


The enzyme has <scene name='57/570585/Two_domains/1'>two domains</scene>, with the active site found in the interdomain cleft.  There is a substantial structural change upon substrate binding, resulting in a <scene name='57/570585/Closed_formation/1'>closed formation</scene>.  Glyphosate (also known as Roundup) occupies the binding site of the second substrate, phosphoenol pyruvate.   
The enzyme has <scene name='57/570585/Two_domains/1'>two domains</scene>, with the active site found in the interdomain cleft.  There is a substantial structural change upon substrate binding, resulting in a <scene name='57/570585/Closed_formation/1'>closed formation</scene>.  Glyphosate (also known as Roundup) occupies the binding site of the second substrate, phosphoenol pyruvate.   
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**[[3slh]] - CbEPSP + S3P + glyphosate<br />
**[[3slh]] - CbEPSP + S3P + glyphosate<br />
}}
}}
== References ==
<references/>
 


[[Category:Topic Page]]
[[Category:Topic Page]]

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Ann Taylor, Michal Harel, Alexander Berchansky, Joel L. Sussman