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Research Article

Functional domains of the capsid protein of human immunodeficiency virus type 1.

T Dorfman, A Bukovsky, A Ohagen, S Höglund, H G Göttlinger
T Dorfman
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A Bukovsky
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A Ohagen
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S Höglund
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H G Göttlinger
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ABSTRACT

A series of deletions was introduced into the CA domain of the human immunodeficiency virus type 1 Gag polyprotein to examine its role in virus particle and core formation. The mutations resulted in two phenotypes, indicating the existence of two functionally distinct regions within the CA domain. Deletions within a conserved stretch of 20 amino acids referred to as the major homology region (MHR) and deletions C terminal to this region blocked virus replication and significantly reduced the ability to form viral particles. Deletions N terminal to the MHR also prevented virus replication, but the mutants retained the ability to assemble and release viral particles with the same efficiency as the wild-type virus. The mutant particles contained circular rather than cone-shaped cores, and while they were of a density similar to that of wild-type particles, they were more heterogeneous in size. These results indicate that CA domain sequences N terminal to the MHR are essential for the morphogenesis of the mature cone-shaped core.

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Functional domains of the capsid protein of human immunodeficiency virus type 1.
T Dorfman, A Bukovsky, A Ohagen, S Höglund, H G Göttlinger
Journal of Virology Dec 1994, 68 (12) 8180-8187; DOI:

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Functional domains of the capsid protein of human immunodeficiency virus type 1.
T Dorfman, A Bukovsky, A Ohagen, S Höglund, H G Göttlinger
Journal of Virology Dec 1994, 68 (12) 8180-8187; DOI:
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