Video encyclopedia



Cheap Vs Expensive Power Attenuator - Jettenuator Vs Hotplate


A simple Attenuator build.


AI010 Attenuator Eurorack Module Demo


Wave Attenuator Demonstration


TV signal Attenuators

Attenuation is a proposed mechanism of control in some bacterial operons which results in premature termination of transcription and is based on the fact that, in bacteria, transcription and translation proceed simultaneously. Attenuation involves a provisional stop signal (attenuator), located in the DNA segment that corresponds to the leader sequence of mRNA. During attenuation, the ribosome becomes stalled (delayed) in the attenuator region in the mRNA leader. Depending on the metabolic conditions, the attenuator either stops transcription at that point or allows read-through to the structural gene part of the mRNA and synthesis of the appropriate protein.
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    • Classes of attenuators 

    • Discovery 

    • The ''trp'' operon 

    • Attenuation in eukaryotes