Structural studies on adenoviruses

Autor: C, San Martín, R M, Burnett
Rok vydání: 2003
Předmět:
Zdroj: Current topics in microbiology and immunology. 272
ISSN: 0070-217X
Popis: The adenovirus genome encodes more than 40 proteins, of which 11 combine with the viral DNA to form an icosahedral capsid of approximately 150 MDa molecular weight and approximately 900 A in diameter. This chapter reviews the information that structural biology techniques have provided about the adenovirus proteins and capsid. The structures of two capsid proteins (hexon and fiber) and two non-structural polypeptides (DNA-binding protein and protease) have been solved by X-ray crystallography. Fiber and its knob have been the focus of the latest structural studies, due to their role in host recognition and consequently in virus targeting for human gene therapy. The current model for the large capsid comes from a combination of electron microscopy and crystallography. The resultant images have revealed a surprising similarity between adenovirus and a bacterial virus, which suggests their common evolutionary origin.
Databáze: OpenAIRE