Tryptophan repressor bound to DNA C015 / 6243
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Tryptophan repressor bound to DNA C015 / 6243
Tryptophan repressor bound to DNA. Molecular model of the tryptophan (trp) repressor (grey and green, and orange and yellow, across bottom) bound to DNA (deoxyribonucleic) molecules (blue and orange, and green and purple, across top). The trp repressor inhibits the expression of genes that code for the amino acid tryptophan, the trp operon, in Escherichia coli bacteria. When there is a plentiful supply of tryptophan in the environment the protein binds to the trp operon inhibiting gene expression. When levels of tryptophan in the cell fall, the repressor drops off and the bacterium begins to produce its own tryptophan
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9210247
© LAGUNA DESIGN/SCIENCE PHOTO LIBRARY
Bacterial Bacteriology Binding Bound Complex Double Helix Gene Expression Inhibiting Inhibition Microbiology Nucleic Acid Proteomics Regulate Regulating Regulation Repressing Repression Transcription Factor Biochemical Biochemistry Deoxyribonucleic Acid Genetics Microbiological Molecular Molecular Model Protein
EDITORS COMMENTS
This print showcases the intricate molecular model of the Tryptophan repressor bound to DNA. The image portrays the grey and green structure of the tryptophan repressor, along with orange and yellow elements at the bottom, representing its interaction with DNA molecules depicted in blue and orange, as well as green and purple strands on top. The Tryptophan repressor plays a crucial role in regulating gene expression within Escherichia coli bacteria. Specifically, it inhibits the expression of genes responsible for coding the amino acid tryptophan known as the trp operon. When an abundant supply of tryptophan is present in their environment, this protein binds to the trp operon effectively suppressing gene expression. However, when cellular levels of tryptophan decrease, this repression is lifted as the repressor dissociates from DNA allowing bacteria to produce their own tryptophan. With its black background highlighting every detail, this artwork provides a visually stunning representation of how complex biochemical processes occur within microbiological systems. It emphasizes key concepts such as regulation, inhibition, transcription factors, and genetic control mechanisms that are fundamental in understanding bacterial genetics and proteomics. Overall, this print serves not only as a beautiful piece but also offers valuable insights into scientific research related to microbial biochemistry and microbiology studies surrounding regulatory networks like those involving tryptophan repressors or trp operons.
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