In appearance and function,the virus known as T4 bacteriophage resembles nothing so much as a miniature hypodermic syringe,highly specialized for the sole task of injecting its genome into a host bacterium. Once inside,the viral genes co-opt the hosts cellular machinery to build an army of bacteriophages that will,in turn,infect other bacteria. The T4 bacteriophages cell-puncturing device is an insidious hollow molecular needle through which its DNA is injected. To aid penetration of the host cell,the cell-puncturing device is equipped with three bulbous enzymatic domains that digest the cell wall. Once injected,the viral DNA is free to work its mischief. The image is a digital computer model based on real molecules. Magnification: 35 million times at 7''x7'' print size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Eward, Kenneth |
Taille de l’image : | 2786 px × 2767 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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