منابع مشابه
compactifications and function spaces on weighted semigruops
chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...
15 صفحه اولRiboswitches: structures and mechanisms.
A critical feature of the hypothesized RNA world would have been the ability to control chemical processes in response to environmental cues. Riboswitches present themselves as viable candidates for a sophisticated mechanism of regulatory control in RNA-based life. These regulatory elements in the modern world are most commonly found in the 5'-untranslated regions of bacterial mRNAs, directly i...
متن کاملFrom fold to function.
A number of recent advances have been made in deriving function information from protein structure. A fold relationship to an already characterized protein will often allow general information about function to be deduced. More detailed information can be obtained using sequence relationships to already studied proteins. Methods of deducing function directly from structure, without the use of e...
متن کاملFlipping Riboswitches
Riboswitches are common cis-acting regulatory elements in bacteria. They are made of nascent RNA that changes its conformation in response to direct binding of cognate metabolites. The publication of five high-resolution crystal structures provides a comprehensive view of how riboswitches sense their ligands and points to new challenges in this emerging field.
متن کاملBacterial riboswitches
This wikipedia entry provides an extensive description of natural and engineered riboswitches. Most known riboswitches have been found in bacteria. This webpage provides a link to an electronic thesis file describing a riboswitch that responds to the herbicide atrazine. This web article discusses synthetic riboswitches. These are tools that researchers can use to control bacterial metabolism. T...
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ژورنال
عنوان ژورنال: Chemistry & Biology
سال: 2006
ISSN: 1074-5521
DOI: 10.1016/j.chembiol.2006.08.002