The 5´–3´ exoribonuclease Rat1/Xrn2 is responsible for the termination of eukaryotic mRNA transcription by RNAPII. Rat1 forms a complex with its partner proteins, Rai1 and Rtt103, and acts as a “torpedo” to bind transcribing RNAPII and dissociat
Labeled diagram of a generic prokaryotic cell. For a practice assignment on diagramming a prokaryotic cell Click Here. Continued... Eukaryotic Cells Go to PAGE 2 >Binary FissionCLASS NOTES from the free STEM education site Science Prof Online...
Describe the overall purposes of cell division and the cell cycle. Describe the structure of eukaryotic chromosomes, drawing a labeled picture of a chromosome after the S phase. Compare cytokinesis in plants and animals, and binary fission in prokaryotes. How is DNA compacted into chromosomes? How...
Protein Structure InitiativeMaxwellA simple approach that allows cost-effective automated purification of recombinant proteins in levels sufficient for functional characterization or structural studies is described. Studies with four human stem cell proteins, an engineered version of green fluorescent protein, ...
- 3d models that you control, each structure clearly labeled with useful all part information. - Audio guide available for each prokaryotic eukaryotic cell. - Rotational models (views from different angles) - Great for learning anatomy and their description. - Tap and Pinch Zoom - zoom into and...
Biosynthetic precursors of U2 small nuclear RNA have been identified in cultured human cells by hybrid-selection of pulse-labeled RNA with cloned U2 DNA. These precursor molecules are one to approximately 16 nucleotides longer than mature U2 RNA and contain 2,2,7-trimethylguanosine "caps". The ...
(2014). The structure, function and evolution of proteins that bind DNA and RNA. Nat. Rev. Mol. Cell Biol. 15: 749–760, https://doi.org/10.1038/nrm3884.Search in Google Scholar Huffman, J.L. and Brennan, R.G. (2002). Prokaryotic transcription regulators: more than just the helix-...
From the comparison of the Na+-binding sites, the ancient state of this enzyme could be reconstructed as a Na+-exporting, ATP-driven pump, one of the ancient sodium export pumps that could keep the [K+]/[Na+] ratio in the cell cytoplasm over unity [43–46]. Since many key cellular...
From learning the cell theory, we know that cells are the basic unit of structure and function in all living things. But, do you think that our cells might be different than the cells of a plant, or a bacterial cell? Our cells, which are animal cells, are in fact different than plant...
Because the space group of the crystal is P212121, there are four tetramers in a unit cell within the crystal. Download: Download high-res image (295KB) Download: Download full-size image FIGURE 3.. Crystal structure of red algal PSII and its comparison with cyanobacterial PSII. A, a ...