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回复 zerollx 的帖子' y3 i4 q) D& m' K# m' ^0 X
2 W: _9 r$ Y8 c好像看有的说F的意思就是fast,生长速度比293T快,它们两个都是整合了SV40大T抗原。具体的也不是很清楚。5 K" n* {8 n: [( \+ j( ^* }: a
The 293FT Cell Line is derived from the 293F Cell Line and stably9 A# R4 a4 D+ o: |' g/ d
expresses the SV40 large T antigen from the pCMVSPORT6TAg.neo plasmid.7 u' x. O! @$ K+ b V; r: R6 ^: \
Expression of the SV40 large T antigen is controlled by the human cytomegalovirus
& m9 M5 M! W8 _. H- }. c(CMV) promoter and is high-level and constitutive. Studies have demonstrated maximal virus production in human 293 cells expressing SV40 large T antigen (Naldini et al., 1996), making the 293FT Cell Line a particularly suitable host for generating lentiviral constructs using the ViraPower Lentiviral Expression System available from Invitrogen.
1 U8 J( @ }+ @" K- F# tThe 293 Cell Line is a permanent line established from primary embryonal human
, f. w4 E i. ~, O0 E! v! f( hkidney transformed with sheared human adenovirus type 5 DNA (Graham et al.,. C$ ~: K5 C- j& o; r
1977; Harrison et al., 1977). The E1A adenovirus gene is expressed in these cells
$ J$ Z3 i5 ~ z) ]4 o# Aand participates in transactivation of some viral promoters, allowing these cells to
+ z& x6 G7 B. D. z/ o; Xproduce very high levels of protein.
8 G8 I/ P. |( }, y1 v: PThe 293-F Cell Line available from Invitrogen (Catalog no. 11625) is a fastgrowing
7 r! L2 C O+ Jvariant of the 293 cell line, and was originally obtained from Robert Horlick at Pharmacopeia.3 e4 X8 q0 {! X0 q& X5 P+ B
这个以供参考! |
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