Patent ID: 7312075

Claim:
A trap vector selected from the group consisting of the following (a) to (i): (a) SP-SA-lox71-IRES-M-loxP-PV-SP; (b) SP-lox71-IRES-M-loxP-PV-SP; (c) SP-lox71-IRES-M-loxP-pA-PV-SP; (d) SP-lox71-IRES-M-loxP-puro-pA-PV-SP; (e) lox71-M-loxP-pA-lox2272-PV-lox511; (f) lox71-IRES-M-loxP-pA-lox2272-PV-lox511; (g) (lox71-integrated SA)-M-loxP-pA-lox2272-PV-lox511; (h) (lox71-integrated SA)-IRES-M-loxP-pA-loxP-2272-PV-lox511; and (i) (lox71-integrated SA)-M-loxP-pA-lox2272-promote-M-lox511-SD; wherein SP represents any sequence; SA represents a splice acceptor; SD represents a splice don or; IRES represents an internal ribosomal entry site; M represents a marker gene; puro represents puromycin resistance gene; pA represents a poly(A) sequence, and PV represents a plasmid vector.