Viral Vectors 101: Gamma-Retroviral Packaging Systems
Type
Blog Post
...bigger than ∼3 kb are packaged less efficiently.
Subcomponents:
U3; Unique 3'; region at the 3' end of viral...SIN γ-retrovirus lack most of the U3 region of the 3’ LTR and are primarily used in gene therapy research...viral genomic RNA (but found at both the 5' and 3' ends of the provirus). Contains sequences necessary...transcription.
R; Repeat region found within both the 5' and 3' LTRs of retro/lentiviral plasmids.
U5; Unique 5';...the viral genomic RNA (but found at both the 5' and 3' ends of the provirus).
5’ LTR
Acts as an RNA...proceeds through U5 and the rest of the provirus.
3’ LTR
Terminates transcription started by 5' LTR ...packaging methods. The three components described above (envelope, packaging, and transfer) are supplied...