Fig. 2. Representative 2D electrophoresis protein gel from the thoracic section of a mature forager honeybee. Proteins that either increased or decreased in foragers, compared to hive bees, are indicated by numbers: 1, troponin T 10°: 2, translation elongation factor-1 ; 3, fructose 1,6-biphosphate aldolase; 4, unidentified protein; 5, Cu/Zn superoxide dismutase (for further details see Table 1, and the extent of protein abundance change is illustrated in Fig. 3). Additional proteins, which were identified but did not show any change in expression, are indicated by capital letters: A, enolase; B, actin; C, tropomyosin 2; D, CG6084-PA; E, tropomyosin (Dermatophagoides farinae) (for further details see Table 2).