ORFs sorted into the functional categories of MIPS, metabolism (A) and energy (B). (AA) Amino-Acid Metabolism; (N2/S) nitrogen and sulphur metabolism; (N) nucleotide metabolism; (P) phosphate metabolism; (C) C-compound and carbohydrate metabolism; (L) lipid, fatty-acid and isoprenoid metabolism; (V) metabolism of vitamins, cofactors, and prosthetic groups; (S) secondary metabolism; (EMP) glycolysis and gluconeogenesis; (PPP) pentose-phosphate pathway; (TCA) tricarboxylic-acid pathway; (RES) respiration; (FER) fermentation; (ER) metabolism of energy reserves (glycogen, trehalose); (GLYC) glyoxylate cycle; (OX) oxidation of fatty acids; (O) other energy generation activities.