VCAC: Molecular Processes: mRNA Processing: Advanced Look: Capping

Questions? Comments? Please contact Dr. Phillip McClean or Christina Johnson.

Flythrough Tour

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CELLULAR PROCESSES

Atp Synthase

Electron Transport Chain

Protein Trafficking

Protein Modification

Protein Recycling

Constitutive Secretion

Regulated Secretion

Mitochondrial Protein Transport

Photosynthesis

Photosystem II

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MOLECULAR PROCESSES

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HOME > mRNA PROCESSING > ADVANCED LOOK > 1.) CAPPING

mRNA Processing: Advanced Look --> 1.) Capping

The first step in processing pre-mRNA is to add a cap to its 5' end. Clicking on each of the thumbnail images will bring up a larger, labeled version of the described scene.

To see the Flash movie for the following sequence of images, click here.

	Before pre-mRNA can be processed it must first be transcribed by RNA polymerase during transcription.
	The first step in processing pre-mRNA occurs during transcription. While still being transcribed, a methylated cap is added to the 5' end of the growing strand of pre-mRNA.
	Transcription continues during and after the cap has been added.
	When transcription is completed, the capped pre-mRNA is released from the RNA polymerase complex.

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