RNA polymerase was halted in consecutive registers of RNA synthesis ranging from registers 11 to 68. Non-denaturing gel electrophoresis shows that the mobility of the complexes varies (up to 15%), indicating that halted complexes differ in their conformation. The electrophoretic mobility changes with an approximate 10-register periodicity. The change of the mobility can be attributed to relativ...

We have developed a procedure for nonradioactive single strand conformation polymorphism analysis and applied it to the detection of point mutations in the human tumor suppressor gene p53. The protocol does not require any particular facilities or equipment, such as radioactive handling, large gel units for sequencing, or a semiautomated electrophoresis system. This technique consists of amplif...

OBJECTIVE To evaluate a new, rapid, and sensitive method for the detection of T-cell clonality in patients with lesions suggestive of cutaneous T-cell lymphoma (CTCL). DESIGNS Skin specimens were obtained from 48 patients with possible CTCL. Polymerase chain reaction amplification of the T-cell receptor gamma (TCRG) gene was performed using consensus primers to the V and J regions. Clonal pop...

A procedure is described for the specific acetylation of the lysine residues of ovalbumin. Six acetylated ovalbumins varying in the degree of modification from 21 to 98% were prepared and were found to be homogeneous by polyacrylamide gel electrophoresis, immunodiffusion, and immunoelectrophresis. As expected, the anodic movement of ovalbumin increased and the isoionic point shifted to lower pH...

Nano-TiO(2) was shown to cause various toxic effects in both rats and mice; however, the molecular mechanism by which TiO(2) exerts its toxicity is poorly understood. In this report, an interaction of nano-anatase TiO(2) with liver DNA from ICR mice was systematically studied in vivo using ICP-MS, various spectral methods and gel electrophoresis. We found that the liver weights of the mice trea...

This review focuses on the culture-independent methods available for the description of both bacterial and fungal communities in cheese. Important steps of the culture-independent strategy, which relies on bulk DNA extraction from cheese and polymerase chain reaction (PCR) amplification of selected sequences, are discussed. We critically evaluate the identification techniques already used for m...

A procedure is described for the specific acetylation of the lysine residues of ovalbumin. Six acetylated ovalbumins varying in the degree of modification from 21 to 98% were prepared and were found to be homogeneous by polyacrylamide gel electrophoresis, immunodiffusion, and immunoelectrophoresis. As expected, the anodic movement of ovalbumin increased and the isoionic point shifted to lower p...