1. Methane Metabolism
2. Methionine Metabolism
3. Monoterpenoid Biosynthesis
4. Naphthalene Degradation
5. Neomycin Biosynthesis
6. N-Glycan Degradation
7. N-Glycans Biosynthesis
8. Nicotinamide Metabolism
9. Nicotinate Metabolism
10. Nitrobenzene Degradation
11. Nitrogen Metabolism
12. Nitrotoluene Degradation
13. Nonribosomal Peptide Structures
14. Nonribosomal Peptides Biosynthesis
15. Novobiocin Biosynthesis
16. Nucleotide Sugars Metabolism
17. O-Glycans Biosynthesis
18. One Carbon Pool By Folate
19. Oxidative Phosphorylation
20. Pantothenate Biosynthesis
21. Penicillin Biosynthesis
22. Pentose Interconversion
23. Pentose Phosphate Pathway
24. Peptidoglycan Biosynthesis
25. Phenanthrene Pathway
26. Phenylalanine Biosynthesis
27. Phenylalanine Metabolism
28. Phenylpropanoid Biosynthesis
29. Phosphinate Metabolism
30. Phospholipid Degradation
31. Phosphonate Metabolism
32. Photosynthesis
33. Pinene Degradation
34. Piperidine Alkaloid Biosynthesis
35. Polycyclic Aromatic Hydrocarbon Deg.
36. Polyketide II Backbone Biosynthesis
37. Polyketide II Products Biosynthesis
38. Polyketide Sugar Unit Biosynthesis
39. Porphyrin Metabolism
40. Porphyrine Biosynthesis
41. Primary Bile Acid Biosynthesis
42. Proline Metabolism
43. Propanoate Metabolism
44. Purine Metabolism
45. Puromycin Biosynthesis
46. Pyridine Alkaloid Biosynthesis
47. Pyrimidine Metabolism
48. Pyruvate Metabolism
49. Quinone Biosynthesis
50. Reduced Pentose Phosphate Cycle
51. Reductive Carboxylate Cycle
52. Retinol Metabolism
53. Riboflavin Metabolism
54. Secondary Bile Acid Biosynthesis
55. Selenocompound Metabolism
56. Serine Metabolism
57. Sesquiterpenoid Biosynthesis
58. Shingoglycolipid Metabolism
59. Sphingolipid Metabolism
60. Sphingophospholipid Biosynthesis