نتایج جستجو برای: روش sscp
تعداد نتایج: 371414 فیلتر نتایج به سال:
Our purpose was to search for mutations in the apolipoprotein E (apoE) gene and to evaluate the role of apoE polymorphisms in the occurrence of autosomal dominant retinitis pigmentosa (ADRP). The ApoE gene coding sequence was analyzed in 51 unrelated patients affected with ADRP. A screening for mutations by SSCP and an analysis of the apoE polymorphisms were performed using PCR and restriction ...
Enzyme is a dynamic entity with diverse time scales, ranging from picoseconds to seconds or even longer. Here we develop a rate theory for enzyme catalysis that includes conformational dynamics as cycling on a two-dimensional (2D) reaction free energy surface involving an intrinsic reaction coordinate (X) and an enzyme conformational coordinate (Q). The validity of Michaelis-Menten (MM) equatio...
A rapid method that uses PCR-single-strand conformation polymorphism analysis of the intron of the nuclear 26S rRNA gene was shown to differentiate the two Pneumocystis carinii special forms that infect rats, P. carinii f. sp. carinii and P. carinii f. sp. ratti. The method also provides a means for estimation of the relative abundance of the two special forms in the case of a coinfected rat. T...
SSCP analysis is one of the most commonly used techniques for screening of small genetic alterations and a very convenient alternative to direct sequencing. In this technique, PCR products are denatured and electrophoresed on non-denaturing polyacrylamide gels. Any change in the sequence theoretically causes a shift in the mobility of the analysed conformers. However, it is known (1) that certa...
Several proteins, including transforming growth factor beta (TGF-beta) receptor type I (RI), TGF-beta receptor type II (RII), Smad2, Smad3, and Smad4/DPC4, have been identified in the transduction pathway of the tumor suppressor TGF-beta. Mutations in TGF-beta RI, TGF-beta RII, Smad2, and Smad4/DPC4 genes are associated with several human cancers. The present study examines these gene mutations...
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