| 别名 |
dimethylglycine methyltransferase, DMT, DMT2, glycine sarcosine dimethylglycine methyltransferase, glycine sarcosine methyltransferase, GSDMT, GsSDMT, MXAN 3190, sarcosine dimethylglycine methyltransferas, sarcosine dimethylglycine methyltransferase, sarcosine dimethylglycine N-methyltransferase, Sdm, Sdm homologue protein, SdmA, SDMT |
| Comments |
Cells of the oxygen-evolving halotolerant cyanobacterium Aphanocthece halophytica synthesize betaine from glycine by a three-step methylation process. The first enzyme, EC 2.1.1.156, glycine/sarcosine N-methyltransferase, leads to the formation of either sarcosine or N,N-dimethylglycine, which is further methylated to yield betaine (N,N,N-trimethylglycine) by the action of this enzyme. Both of these enzymes can catalyse the formation of N,N-dimethylglycine from sarcosine [3]. The reactions are strongly inhibited by S-adenosyl-L-homocysteine. |
