Bacteriophage P22. Computer model of P22 created with molecular modelling software and data from cryo-electron microscopy. Bacteriophages are viruses that only infect bacteria. P22 infects Salmonella enterica. The virus 'head' (blue,green),is a protein shell,known as the capsid,that contains DNA. The 'tail' of the virus is orange. P22 contains a group of proteins,known as a portal,that act as a molecular motor. The portal powers the packaging of DNA within the virus and the injection of DNA into a host cell. P22 is also used as a tool for genetic research as it can inject foreign DNA into its host. Cryo- electron microscopy images specimens kept at minus 150 degrees Celsius | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lander, Gabriel |
Bildgröße: | 4370 px × 5315 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |