User:Ankit Vahia/sandbox1

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A [[CBI Molecule]] being studied in the [http://www.umass.edu/cbi/ University of Massachusetts Amherst Chemistry-Biology Interface Program] at UMass Amherst and on display at the [http://www.molecularplayground.org/ Molecular Playground].
A [[CBI Molecule]] being studied in the [http://www.umass.edu/cbi/ University of Massachusetts Amherst Chemistry-Biology Interface Program] at UMass Amherst and on display at the [http://www.molecularplayground.org/ Molecular Playground].
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Many bacteria can "smell" their surroundings and "choose" where to go. They detect molecules such as amino acids or sugars using receptors that bind these molecules and transmit a signal into the cell. This signal controls several proteins which ultimately control the direction of rotation of the motors that rotate the flagella. One direction causes the cell to continue swimming; the other direction causes the cell to tumble. When an attractant molecule binds, the receptor signals: "Things look good, keep swimming!" The opposite signal occurs when bacteria sense a repellant or less attractant molecules: "Time to tumble and try a new swimming direction."
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T7 RNA polymerase is a a single sub-unit DNA dependent RNA polymerase from the T7 RNA bacteriophage. Like most RNA polymerase T7 RNA polymerase transcribes DNA through three phases
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-Initiation
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-Elongation
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-Termination
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Revision as of 20:03, 28 April 2010

[Image:intactModelLargeText.jpg|frame|T7 RNA Polymerase in the Late Initiation Phase]

A CBI Molecule being studied in the University of Massachusetts Amherst Chemistry-Biology Interface Program at UMass Amherst and on display at the Molecular Playground.

T7 RNA polymerase is a a single sub-unit DNA dependent RNA polymerase from the T7 RNA bacteriophage. Like most RNA polymerase T7 RNA polymerase transcribes DNA through three phases -Initiation -Elongation -Termination


A bacterial chemotaxis receptor is an unusually long alpha-helical structure. The attractant molecule (the ligand) binds near the top of this picture and sends a signal across the membrane into the cell to control proteins that bind near the bottom. This is a model of the structure of the receptor based on experimental structures of pieces of related proteins.

Aspartate receptor ligand binding domain (1wat)

Drag the structure with the mouse to rotate

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Ankit Vahia

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