[Which tube is better for esophagectomy?].

We performed differential lung ventilation for thoracoscopic esophagectomy. There are 2 tools available for differential lung ventilation: double lumen tube (DLT) and endbronchial blocker tube (blocker). We reviewed the best tube by studying esophageal cancer perioperative findings in thoracoscopic esophagectomy.

Expression, purification, and characterization of two N,N-dimethyltransferases, tylM1 and desVI, involved in the biosynthesis of mycaminose and desosamine.

Methylation catalyzed by an S-adenosylmethionine- (AdoMet-) dependent methyltransferase is an effective means to alter the hydrophilicity and/or nucleophilicity of a molecule. While a large number of enzymes capable of catalyzing methylation at carbon, oxygen, sulfur, and nitrogen atoms are known, only a few are able to catalyze N,N-dimethylation. Mycaminose and desosamine are aminohexoses found in several macrolide antibiotics, such as tylosin and methymycin, respectively.