Methyl halide transferase
| Methyl halide transferase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.1.1.165 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Methyl halide transferase (EC 2.1.1.165, MCT, methyl chloride transferase, S-adenosyl-L-methionine:halide/bisulfide methyltransferase, AtHOL1, AtHOL2, AtHOL3, HMT, S-adenosyl-L-methionine: halide ion methyltransferase, SAM:halide ion methyltransferase) is an enzyme with systematic name S-adenosylmethionine:iodide methyltransferase.[1][2][3][4][5][6] This enzyme catalyses the following chemical reaction
This enzyme contributes to the methyl halide emissions from Arabidopsis thaliana.
Chloride transfer
[edit]The salt marsh plant Batis maritima contains the enzyme methyl chloride transferase that catalyzes the synthesis of chloromethane (CH3Cl) from S-adenosine-L-methionine and chloride.[7] This protein has been purified and expressed in E. coli, and seems to be present in other organisms such as white rot fungi (Phellinus pomaceus),[2] red algae (Endocladia muricata), and the ice plant (Mesembryanthemum crystallinum), each of which is a known CH3Cl producer.[7][8]
References
[edit]- ^ Ni, X.; Hager, L.P. (1999). "Expression of Batis maritima methyl chloride transferase in Escherichia coli". Proc. Natl. Acad. Sci. USA. 96 (7): 3611–3615. Bibcode:1999PNAS...96.3611N. doi:10.1073/pnas.96.7.3611. PMC 22342. PMID 10097085.
- ^ a b Saxena, D.; Aouad, S.; Attieh, J.; Saini, H.S. (1998). "Biochemical characterization of chloromethane emission from the wood-rotting fungus Phellinus pomaceus". Appl. Environ. Microbiol. 64 (8): 2831–2835. Bibcode:1998ApEnM..64.2831S. doi:10.1128/AEM.64.8.2831-2835.1998. PMC 106779. PMID 9687437.
- ^ Attieh, J.M.; Hanson, A.D.; Saini, H.S. (1995). "Purification and characterization of a novel methyltransferase responsible for biosynthesis of halomethanes and methanethiol in Brassica oleracea". J. Biol. Chem. 270 (16): 9250–9257. doi:10.1074/jbc.270.16.9250. PMID 7721844.
- ^ Itoh, N.; Toda, H.; Matsuda, M.; Negishi, T.; Taniguchi, T.; Ohsawa, N. (2009). "Involvement of S-adenosylmethionine-dependent halide/thiol methyltransferase (HTMT) in methyl halide emissions from agricultural plants: isolation and characterization of an HTMT-coding gene from Raphanus sativus (daikon radish)". BMC Plant Biol. 9: 116. doi:10.1186/1471-2229-9-116. PMC 2752461. PMID 19723322.
- ^ Ohsawa, N.; Tsujita, M.; Morikawa, S.; Itoh, N. (2001). "Purification and characterization of a monohalomethane-producing enzyme S-adenosyl-L-methionine: halide ion methyltransferase from a marine microalga, Pavlova pinguis". Biosci. Biotechnol. Biochem. 65 (11): 2397–2404. doi:10.1271/bbb.65.2397. PMID 11791711.
- ^ Nagatoshi, Y.; Nakamura, T. (2007). "Characterization of three halide methyltransferases in Arabidopsis thaliana". Plant Biotechnol. 24 (5): 503–506. doi:10.5511/plantbiotechnology.24.503.
- ^ a b Ni X, Hager LP; Purification of the Enzyme (1998). "cDNA Cloning of Batis maritima Methyl Chloride Transferase". Proc Natl Acad Sci USA. 95 (22): 12866–71. doi:10.1073/pnas.95.22.12866. PMC 23635. PMID 9789006.
- ^ Ni X, Hager LP (1999). "Expression of Batis maritima Methyl Chloride Transferase in Escherichia coli". Proc Natl Acad Sci USA. 96 (7): 3611–5. Bibcode:1999PNAS...96.3611N. doi:10.1073/pnas.96.7.3611. PMC 22342. PMID 10097085.
External links
[edit]- Methyl+halide+transferase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
