Transcription Translation Coordination
Transcription Translation Coordination - Related Videos
02:36
Bacteriophage Synthesis Using a Cell-Free Transcription-Translation System
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2026
Source: Rustad, M., et al. Synthesis of Infectious Bacteriophages in an E. coli-based Cell-free Expression System. J. Vis. Exp. (2017).This video demonstrates the synthesis of bacteriophages using a cell-free transcription–translation (TXTL) system. A master mix is prepared using a bacterial crude extract, an energy mix, an amino acid mix, an inhibitor for a DNA-degrading enzyme, and bacteriophage DNA, then incubated. The in vitro molecular machinery enables viral protein expression and DNA...
10:28
The Encapsulation of Cell-free Transcription and Translation Machinery in Vesicles for the Construction of Cellular Mimics
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Cited by 12 •
2013
Herein we describe simple methods for the preparation of vesicles, the encapsulation of transcription and translation machinery, and the monitoring of protein production. The resulting cell-free systems can be used as a starting point from which to build increasingly complex cellular mimics.
02:57
Coordination Number and Geometry
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2020
For transition metal complexes, the coordination number determines the geometry around the central metal ion. Table 1 compares coordination numbers to molecular geometry. The most common structures of the complexes in coordination compounds are octahedral, tetrahedral, and square planar. Coordination Number Molecular Geometry Example 2 linear [Ag(NH3)2]+ 3 trigonal planar [Cu(CN)3]2− 4 tetrahedral(d0 or d10), low oxidation...
02:16
Transcription Factors
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2019
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
02:54
Coordination Compounds and Nomenclature
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2020
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
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As RNA polymerase produces a nascent messenger RNA, ribosomes can bind that RNA before transcription finishes. This proximity allows protein synthesis to respond while the transcript is still being made, rather than waiting for a completed message. The arrangement helps connect the progress of transcription with downstream decisions about RNA structure, termination, and regulatory protein activity.
A newly produced mRNA can adopt structures while it emerges from RNA polymerase. Ribosome binding may influence which structures form, and those structural changes can affect whether transcription continues or terminates. Consequently, RNA folding provides a physical link between translation activity and transcriptional outcomes, allowing gene expression to respond to the state of the developing transcript.
When ribosomes translate a nascent bacterial transcript, their movement and binding can affect regulatory interactions associated with that RNA. These effects may alter the activity of regulatory proteins and thereby change transcriptional behavior. Coordination therefore extends beyond protein production itself: translation can participate in feedback that determines how efficiently a gene continues to be expressed.
Bacteria can couple transcription and translation because the two processes occur together, allowing ribosomes to engage nascent mRNA. In eukaryotic cells, nuclear separation prevents this immediate physical arrangement and introduces additional RNA-processing steps before translation. Comparing the systems shows how cellular organization changes the mechanisms available for linking transcript production with protein synthesis.
A useful analysis considers the relationship among RNA polymerase, nascent mRNA, ribosomes, RNA folding, transcription termination, and regulatory proteins. Researchers can then ask how these components influence one another under different cellular conditions. This framework connects molecular events on a developing transcript with broader changes in gene expression and protein production.
Studies can show how bacteria adjust protein production rapidly by linking transcriptional activity with translation as the mRNA is produced. Observing effects on folding, termination, or regulatory protein activity helps identify points where cellular conditions influence gene expression. The resulting picture explains how changes in the transcription process can be transmitted directly to protein synthesis.