Biochemistry Online: An Approach Based on Chemical Logic

Biochemistry Online

Reactivity in Chemistry

Metabolic Pathways

CT0 - P. The Cell:  Proteins

Henry Jakubowski

Figure:  A Eukaryotic Cell

Mitochondrion Link Ribosome CellImageMap

Use with permission from  Liliana Torres .  Also at

Proteins are polymers of bifunctional alpha-amino acids each containing a different R group at the alpha carbon.  Encoded by the DNA genome, proteins are involved in all cellular activities including recognition, catalysis, movement, and signalling. 

The following site will show you the "life" history of proteins in cells.

The sites linked above are written and maintained by Henry V. Jakubowski, Ph.D., College of Saint Benedict / Saint John's University.  These materials are available for educational use.

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This material is based upon work supported by the National Science Foundation under Grant No. 1043566.

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.


Reactivity Index CT0. The Cell:  An Overview
Structure & Reactivity Web Materials Biochemistry Online:  Table of Contents


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Biochemistry Online by Henry Jakubowski is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.