Cucurbit[7]uril (CB[7]) encapsulates adamantyl and trimethylsilyl substituents of positively charged guests in dimethyl sulfoxide (DMSO). Unlike water or deuterium oxide, addition a selection alkali alkali-earth cations...

Dimethyl sulfoxide reductase, a terminal electron transfer enzyme, was purified from anaerobically grown Escherichia coli harboring a plasmid which codes for dimethyl sulfoxide reductase. The enzyme was purified to greater than 90% homogeneity from cell envelopes by a three-step purification procedure involving extraction with the detergent Triton X-100, chromatofocusing, and DEAE ion-exchange ...

Monoprotonated aliphatic hydroxylamines, acetone oxime, and dimethyl sulfoxide as their fluoroantimonate salts (prepared from the corresponding hydrochloric acid salts) in SbF5-SOzClF (or SOz) solution were studied to determine the site of protonation. Subsequently, diprotonation was also investigated in HSOsF-SbFs (magic acid) solution. From the 'H and 13C NMR data of the static and exchanging...

The fungistatic antibiotics trichostatins (IS) A and C were isolated from culture broth of Streptomyces platensis No. 145 and were found to be potent inducers of differentiation in murine erythroleukemia (Friend and RV133) cells at concentrations of 1.5 x IO" M for TSA and 5 x 10" M for TSC. Differentiation induced by IS was cooperatively en hanced by UV irradiation but not by treatment with di...

In the title compound, C(4)H(5)N(3)OS(2)·2C(2)H(6)OS, the five-membered heterocyclic ring and the N-(C=O)-C plane of the acetamide group are essentially co-planar, with a dihedral angle of 1.25 (3)°. Inter-molecular N-H⋯O hydrogen bonds between the acetamide compound and the dimethyl sulfoxide mol-ecules stabilize the crystal structure. The two dimethyl sulfoxide mol-ecules are each disordered ...

Twenty-one variant clones of Friend erythroleukemia cell were isolated and characterized. Seventeen clones were resistant to induction of hemoglobin synthesis by one of eight drugs that have been reported to induce erythroid differentiation in clone 745. Four clones re sponded hypersensitively to dimethyl sulfoxide or hypoxanthine. The variant clones were treated with inducing drugs to determin...

Peptidoglycan transpeptidase and dd-carboxypeptidase have been detected in isolated membranes of Pseudomonas aeruginosa. Cephalosporins and penicillins fail to inhibit the transpeptidase at concentrations as high as 100 mug/ml. dd-Carboxypeptidase, on the other hand, is sensitive to inhibition by beta-lactam antibiotics. The presence of dimethyl sulfoxide in the reaction mixture results in a tw...