منابع مشابه
Recognition of prokaryotic transcription terminators by spinach chloroplast RNA polymerase.
To determine whether chloroplast RNA polymerase will accurately terminate transcription in vitro, we have fused the spinach chloroplast rbcL promoter to the 3' end of the rbcL gene as well as to various factor independent transcription terminators from E. coli. Transcription of the rbcL minigene did not result in production of the expected 265 nucleotide RNA. However, the spinach chloroplast RN...
متن کاملMycobacterial RNA Polymerase Requires a U-Tract at Intrinsic Terminators and Is Aided by NusG at Suboptimal Terminators
Intrinsic terminators, which encode GC-rich RNA hairpins followed immediately by a 7-to-9-nucleotide (nt) U-rich "U-tract," play principal roles of punctuating and regulating transcription in most bacteria. However, canonical intrinsic terminators with strong U-tracts are underrepresented in some bacterial lineages, notably mycobacteria, leading to proposals that their RNA polymerases stop at n...
متن کاملAshoke Sen
We analyze M-theory compactified on (K3 × S)/Z2 where the Z2 changes the sign of the three form gauge field, acts on S as a parity transformation and on K3 as an involution with eight fixed points preserving SU(2) holonomy. At a generic point in the moduli space the resulting theory has as its low energy limit N = 1 supergravity theory in six dimensions with eight vector, nine tensor and twenty...
متن کاملMaking gene circuits sing.
H ow many tries did it take to get that to work? The doubleedged question, which arises regularly at synthetic biology meetings, succinctly summarizes a major hurdle for the field; even with the successes and enormous potential for the construction of genetic circuits in living cells, it is commonly understood that cloning and computational expertise do not typically lead to circuits that funct...
متن کاملLearning lyrics: to sing or not to sing?
According to common practice and oral tradition, learning verbal materials through song should facilitate word recall. In the present study, we provide evidence against this belief. In Experiment 1, 36 university students, half of them musicians, learned an unfamiliar song in three conditions. In the sung-sung condition, the song to be learned was sung, and the response was sung too. In the sun...
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ژورنال
عنوان ژورنال: Molecular Cell
سال: 2011
ISSN: 1097-2765
DOI: 10.1016/j.molcel.2011.06.002