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

OVERVIEW
Flythrough Tour
~~~~~~~~~~~~
MOLECULAR PROCESSES
Transcription
Regulated Transcription
mRNA Processing
mRNA Splicing
Translation
Lac Operon
~~~~~~~~~~~~
CELLULAR PROCESSES
Protein Trafficking
Protein Modification
Protein Recycling
Insulin Signaling
Constitutive Secretion
Regulated Secretion
Mitochondrial Protein Transport
Mitosis
Meiosis
~~~~~~~~~~~~
CELLULAR ENERGY CONVERSION
Atp Synthase (Gradients)
Electron Transport Chain
Photosynthesis (Light Reaction)
Photosystem II
Glycolysis (Overview)
Glycolysis (Reactions)
Citric Acid Cycle (Overview)
Citric Acid Cycle (Reactions)
Energy Consumption
~~~~~~~~~~~~


NATIONAL SCIENCE FOUNDATION


U.S. DEPARTMENT OF EDUCATION

~~~~~~~~~~~~~
NDSU Virtual Cell YouTube
MCBE Home
Virtual Cell
WWWIC Home
Funding & Credits
~~~~~~~~~~~~~
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.

NEXT --> 2.) CLEAVAGE

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.