نتایج جستجو برای: methylpyrimidine
تعداد نتایج: 151 فیلتر نتایج به سال:
On the basis of nascent transcript sequencing, it has been postulated but never demonstrated that transcriptional pausing at translation start sites is important for gene regulation. Here we show that the Escherichia coli thiamin pyrophosphate (TPP) thiC riboswitch contains a regulatory pause site in the translation initiation region that acts as a checkpoint for thiC expression. By biochemical...
The thiCOGE genes of Rhizobium etli code for enzymes involved in thiamin biosynthesis. These genes are transcribed with a 211-base untranslated leader that contains the thi box, a 38-base sequence highly conserved in the 5' regions of thiamin biosynthetic and transport genes of Gram-positive and Gram-negative organisms. A deletion analysis of thiC-lacZ fusions revealed an unexpected relationshi...
The OpenSPARC T1 is a multithreading processor developed and open sourced by Sun Microsystems (now Oracle) [1]. We have added an implementation of our low-power Tagless-Hit Instruction Cache (TH-IC) [2] to the T1, after adapting it to the multithreading architecture found in that processor. The TH-IC eliminates the need for many instruction cache and ITLB accesses, by guaranteeing that accesses...
A method is reported for the synthesis of pyrene-labeled analogues of phosphatidylinositol 4-phosphate (Pyr-PIP) and phosphatidylinositol 4,5-biphosphate (Pyr-PIP2) from sn-2-(pyrenyl-decanoyl)phosphatidylinositol (Pyr-PI) using partially purified PI and PIP kinase preparations. Phosphorylation of Pyr-PI and Pyr-PIP was extensive (more than 50%) provided that the ATP concentration was high and ...
Red-billed gulls (Lams scupzdinus) and southern black-backed gulls (Lams dominicams) exploited a large and highly visible food source provided by beaching of euphausiids (Nyctiphanes australis) and galatheid crab larvae (Munida gregaria) in Otago Harbor. The plankton strandings occurred predominantly in summer, and provided a food source of -270 t dry weigh1 over 170 d along 12 km of shoreline....
UNLABELLED Ancient endosymbionts have been associated with extreme genome structural stability with little differentiation in gene inventory between sister species. Tsetse flies (Diptera: Glossinidae) harbor an obligate endosymbiont, Wigglesworthia, which has coevolved with the Glossina radiation. We report on the ~720-kb Wigglesworthia genome and its associated plasmid from Glossina morsitans ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید