chp27outline

Guano, a substance found on some coasts
frequented by sea birds, is composed
chiefly of the birds’ partially decomposed
excrement....The name for the purine
guanine derives from the abundance of this
base in guano.
The Chincha Islands...are...off the
coast of Peru....Myriads of birds, after
satisfying their voracious appetites upon the
finny tenants of the deep, have for ages
made the islands their nightly abode, and
the receptacle of their fecal offerings.

J. C. Nesbit, On Agricultural Chemistry and the Nature and
Properties of Peruvian Guano (1850)

Chapter Outline

27.1 Nucleotide Biosynthesis

27.2 The Biosynthesis of Purines

27.3 Purine Salvage

27.4 Purine Degradation

27.5 The Biosynthesis of Pyrimidines

27.6 Pyrimidine Degradation

27.7 Deoxyribonucleotide Biosynthesis

27.8 Synthesis of Thymine Nucleotides