_EC 4.4.1.19 Phosphosulfolactate synthase. 2 PDB entries  
EC 4.-.-.- Lyases. [3,615 PDB entries]
EC 4.4.-.- Carbon-sulfur lyases. [120 PDB entries]
EC 4.4.1.- Carbon-sulfur lyases. [120 PDB entries]
EC 4.4.1.19 Phosphosulfolactate synthase. [2 PDB entries]    
1qwg

Pathway: Coenzyme M Biosynthesis
Reaction: (2R)-2-O-phospho-3-sulfolactate = phosphoenolpyruvate + hydrogen sulfite.
 

(2R)-2-O-phospho-3-sulfolactate
=
phosphoenolpyruvate
+
hydrogen sulfite
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): (2R)-phospho-3-sulfolactate synthase. Psl synthase.
Cofactor(s): Magnesium.
Comments: The enzyme from Methanococcus jannaschii catalyzes the Michael addition of sulfite to phosphoenolpyruvate. It specifically requires phosphoenolpyruvate and its broad alkaline pH optimum suggests that it uses sulfite rather than bisulfite.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 2 PDB entries in enzyme class E.C.4.4.1.19

  PDB code Protein
1qwg
Crystal structure of methanococcus jannaschii phosphosulfola synthase
Source: Methanocaldococcus jannaschii. Organism_taxid: 2190. Gene: coma. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (251 residues) CATH domain: 3.20.20.70
Bound ligand:   Het Group SO4 is 80.00% similar to enzyme product HSO(3)(-)
1u83
Psl synthase from bacillus subtilis
Source: Bacillus subtilis. Organism_taxid: 1423. Gene: coma. Expressed in: escherichia coli bl21. Expression_system_taxid: 511693.
Chain: A (225 residues) CATH domain: 3.20.20.70
Bound ligand:   Het Group PO4 is 50.00% similar to enzyme product Phosphoenolpyruvate