| 摘要 |
There is provided an amino acid sequence comprised within the PV E1 protein region A delineated by amino acids 352 and 439, and any derivative variant o r fragment thereof, necessary for the oligomerization of the E1 protein. This amino acid sequence is capable of self-association and of associating with t he full length E1 protein and any derivative, variant or fragment thereof comprising the sequence of this invention. A specific aspect of this first embodiment, the amino acid domain of this invention delimited by amino acids 353 to 438 of the PV E1 protein. More particularly, the amino acid domain of this invention is as defined by SEQ ID NO. 2. There is also provided a cross - linking assay to directly measure the level of oligomerization (or inhibitio n thereof) of the E1 protein. In accordance with a fourth embodiment of this invention, there is provided a N-terminally truncated E1 protein. More particularly, one aspect of this fourth embodiment encompasses the E1 protei n delimited by amino acid 72 to 649 (SEQ ID No. 78).
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