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Novas ilustrações de

Mycoplasma mycoides:

A painting of an entire Mycoplasma mycoides cell. The cell shown is about 250 nanometers in diameter, which is at the small end of the range of observed sizes. The macromolecules were shownat reasonable locations and concentrations, and with the actual shapes and sizes.

Key

Protein synthesis (labels in black)

1. DNA 2. DNA polymerase 3. single-stranded-DNA binding protein (protects single-stranded portions during replication) 4. RNA polymerase 5. messenger RNA 6. ribosome 7. transfer RNA (in pink) and elongation factor Tu (in blue) 8. elongation factor Tu and Ts 9. elongation factor G 10. aminoacyl-tRNA synthetases 11. topoisomerases 12. Rec system for DNA repair: a) RecA, b) RecBC 13. chaperonin GroEL (helps folding of new proteins) 14. proteasome ClpA (destroys old proteins)

Enzymes for energy production (labels in red)

15. glycolytic enymes 16. pyruvate dehydrogenase complex

Membrane proteins (labels in blue)

17. ATP synthase 18. secretory proteins 19. sodium pump 20. zinc transporter 21. magnesium transporter 22. ABC transporter (different ABC transporters transport different types of molecules-ABC is short for “ATP-binding cassette”) 23. magnesium transporter 24. lypoglycan (long carbohydrate chains connected to lipid in the membrane)