Ribozymal nucleic acid

Chemistry: molecular biology and microbiology – Vector – per se

Reexamination Certificate

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C435S091100, C435S091310, C435S091400, C536S023100, C536S024500

Reexamination Certificate

active

06916653

ABSTRACT:
A vector system which can be incorporated in liposomes, comprising at least one DNA vector, the vector or vectors containing a target-cleaving hammerhead ribozymal DNA sequence under control of a promoter effective in human cells and which, upon transcription to RNA will cleave the mRNA transcribed from a target gene encoding the CCR5 or CXCR4 protein.Preferably the ribozymal DNA contains a first recognition sequence (5′ to 3′):tagattg or ctcact, respectively for CCR5 or CXCR4 and downstream thereof a second recognition sequenceacttg or acgttgt respectively for CCR5 or CXCR4.

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