The enzyme alkylmercury lyase (EC 4.99.1.2) catalyzes the reaction
alkylmercury lyase | |||||||||
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Identifiers | |||||||||
EC no. | 4.99.1.2 | ||||||||
CAS no. | 72560-99-7 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
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- an alkylmercury H an alkane Hg2
This enzyme belongs to the family of lyases, specifically the "catch-all" class of lyases that do not fit into any other sub-class. The systematic name of this enzyme class is alkylmercury mercury(II)-lyase (alkane-forming). Other names in common use include organomercury lyase, organomercurial lyase, and alkylmercury mercuric-lyase.
The enzyme converts methyl mercury to the much less toxic elemental form of the metal.
References
edit- ^ Lafrance-Vanasse, J.; Lefebvre, M.; Di Lello, P.; Sygusch, J.; Omichinski, J. G. (2008). "Crystal Structures of the Organomercurial Lyase MerB in Its Free and Mercury-bound Forms: INSIGHTS INTO THE MECHANISM OF METHYLMERCURY DEGRADATION". Journal of Biological Chemistry. 284 (2): 938–944. doi:10.1074/jbc.M807143200. PMID 19004822.938-944&rft.date=2008&rft_id=info:doi/10.1074/jbc.M807143200&rft_id=info:pmid/19004822&rft.aulast=Lafrance-Vanasse&rft.aufirst=J.&rft.au=Lefebvre, M.&rft.au=Di Lello, P.&rft.au=Sygusch, J.&rft.au=Omichinski, J. G.&rft_id=https://doi.org/10.1074%2Fjbc.M807143200&rfr_id=info:sid/en.wikipedia.org:Alkylmercury lyase" class="Z3988">
- Tezuka T, Tonomura K (July 1976). "Purification and properties of an enzyme catalyzing the splitting of carbon-mercury linkages from mercury-resistant Pseudomonas K-62 strain. I. Splitting enzyme 1". J. Biochem. 80 (1). Tokyo: 79–87. doi:10.1093/oxfordjournals.jbchem.a131261. PMID 9382.79-87&rft.date=1976-07&rft_id=info:doi/10.1093/oxfordjournals.jbchem.a131261&rft_id=info:pmid/9382&rft.aulast=Tezuka&rft.aufirst=T&rft.au=Tonomura, K&rfr_id=info:sid/en.wikipedia.org:Alkylmercury lyase" class="Z3988">