Credit: FRANCIS LEROY & MATHILDE VANSPEYBROUCK, BIOCOSMOS/SCIENCE PHOTO LIBRARY

Caption: Animation showing an active tryptophan (trp) operon, the set of genes that code for the amino acid tryptophan in Escherichia coli bacteria. If the bacterium cannot source enough tryptophan from its environment it is able to synthesise it. RNA polymerase (blue oval) transcribes the operon's five genes (white, across top) to mRNA (messenger ribonucleic acid, light blue), which will then be translated into proteins that synthesise tryptophan. A repressor (purple) for this process is also produced, but in the absence of tryptophan in the enviropnment, remains in its inactive form.

Release details: Model release not required. Property release not required.

Keywords: active, amino acid, animated, animation, bacterial, biological, biology, black background, deoxyribonucleic acid, dna, gene expression, genes, genetic, genetics, inactive repressor, negative feedback, operator, regulation, repressible, repression, repressor, transcription factor, trp operon, tryptophan operon

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Active tryptophan operon

K004/0381 Rights Managed

Downloadable master

Duration: 00:00:36

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

Original

Capture format: QuickTime Animation

Frame size: 1280x720

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.

 

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