Textbooks consulted:

• Introduction to Protein Structure, Branden, C. and Tooze, J. (1991) Garland Publishing, New York
• Proteins, Creighton, T.E. (1993) 2nd edition, W.H. Freeman & Co., New York
• Biochemistry, Stryer, L., (1995) 4th edition, W.H. Freeman & Co., New York
• Biochemistry, Voet, D. and Voet, J.G. (1995) 2nd edition, John Wiley & Sons, New York
• Principles of Biochemistry, Zubay, G.L., Parson, W.W. and Vance, D.E. (1995) Wm. C. Brown, Dubuque, Iowa
• Molecular Cell Biology, Darnell, J., Lodish, H. and Baltimore, D. (1995) 3rd edition, W.H. Freeman & Co., New York
  
  

Books consulted:

• The Enzymes, Chapter 1 "The Enzymology of Control by Phosphorylation", Edwin G. Krebs, Vol. XVII, (1986), Academic Press, Inc., p. 3-20.
• Regulation of Proteins by Ligands, Proceedings of The Robert A. Welch Foundation Conference on Chemical Research, XXXVI, October 26-27, 1992, Houston, Texas.
• Glycogen Phosphorylase: Description of the Protein Structure, Acharya, K. R.; Stuart, D.I.; Varvill, K.M.; Johnson, L.N.; (1991), World Scientific Publishing Co., London.

Journal References:

• "Protein phosphorylation and dephosphorylation," L.A. Witters, Cur. Cell Bio., 1990, 2, 212-220.
• "Structural changes in glycogen phosphorylase induced by phosphorylation," Sprang, S.R.; Acharya, K.R.; Goldsmith, E.J.; Stuart, D. I.; Varvill, K.; Fletterick, R.J.; Madsen, N.B.; Johnson, L.N., Nature, 336, 1988, 215-221.

PDB References used:

• 1GPA "Structural Mechanism for Glycogen Phosphorylase Control by Phosphorylation and AMP," Barford, D.; Hu, S.-H.; Johnson, L. N., J. Mol. Biol., V. 218, 233, 1991.
• 1GPB "Glycogen Phosphorylase B: Description of the Protein Structure," Acharya, K.R.; Stuart, D.I.; Varvill, K.M.; Johnson, L.N., (1991) World Scientific Publishing Co., London.