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''Single'' T = 1 isometric particles of Maize streak virus (MSV) have been isolated from infected maize leaves. Biochemical and genetic characterizations show that these particles contain subgenomic (sg) MSV DNA encapsidated by the MSV coat protein. The largest sg DNA is 1.56 kb, slightly larger than half genome size, although sg DNAs as small as 0.2 kb were also cloned. The sg DNAs are not infectious,...
Adeno-associated virus (AAV) serotypes 1 to 5 are currently under development as clinical gene delivery vectors for the treatment of human diseases. However, the ubiquitous nature of their cell surface receptors, heparin sulfate (AAV2 and 3) and sialic acids (AAV4 and 5), can preclude specific tissue targeting in vivo. Structural studies of AAV4 were initiated to characterize its capsid surface for...
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