Science Catalog 2012 Life Cell Signaling Helper Phage Helper Phage Product R408 Helper Phage DNA For Research Use Only. Not for Use in Diagnostic Procedures. Description: The pGEM®-Zf Vectors require the presence of a helper phage in order to be propagated, packaged and secreted as single-stranded DNA (ssDNA) viral particles. R408 helper phage allows the preferential secretion of single-stranded plasmid DNA over the phage ssDNA, thereby increasing the absolute yield of plasmid ssDNA. Differences in the yields and absolute amounts of plasmid and phage ssDNA produced have been observed to be dependent on the particular host and vector combination. Concentration: Minimum specification is ≥5 × 1010pfu/ml. Features: • Increased Single-Stranded DNA Yield: R408 Helper Phage allows the preferential secretion of single-stranded plasmid DNA over the phage ssDNA. Storage Conditions: Store at –20°C. Size Cat.# Price (Fr) 10 µg P2341 142.00 312 For complete and up-to-date product information visit: www.promega.com/catalog Pagina 315
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