CATH Classification

Domain Context

CATH Clusters

Superfamily TPP-binding domain
Functional Family

Enzyme Information

2.2.1.9
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase.
based on mapping to UniProt Q71YZ2
Isochorismate + 2-oxoglutarate = 5-enolpyruvoyl-6-hydroxy-2-succinyl- cyclohex-3-ene-1-carboxylate + CO(2).
-!- Involved in the biosynthesis of vitamin K(2) (menaquinone). -!- In most anaerobes and all Gram-positive aerobes, menaquinone is the sole electron transporter in the respiratory chain and is essential for their survival. -!- It had previously been thought that the products of the reaction were (1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate (SHCHC), pyruvate and CO(2) but it is now known that two separate enzymes are involved: this enzyme and EC 4.2.99.20. -!- Under basic conditions, the product can spontaneously lose pyruvate to form SHCHC. -!- Formerly EC 2.5.1.64 and EC 2.5.1.n1.

UniProtKB Entries (1)

Q71YZ2
MEND_LISMF
Listeria monocytogenes serotype 4b str. F2365
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase

PDB Structure

PDB 3LQ1
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal Structure of Sephchc Synthase from Listeria Monocytogenes
Patskovsky, Y., Toro, R., Freeman, J., Hu, S., Sauder, J.M., Burley, S.K., Almo, S.C.
To be Published