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网站首页 >> pEGFP-N3哺乳荧光质粒 货号：P2071
pEGFP-N3哺乳荧光质粒 货号：P2071

信息

启动子 CMV
复制子 pUC
终止子 SV40 poly(A) signal
质粒大小 4729bp
原核抗性 Kan
真核抗性 G418
克隆菌株 DH5α
培养条件 37℃
表达宿主 哺乳细胞
诱导方式 无须诱导，瞬时表达
5'测序引物 CMV-F：CGCAAATGGGCGGTAGGCGTG
3'测序引物 根据序列设计引物
质粒宿主 哺乳细胞
质粒用途 蛋白表达
片段类型 基因CDS
片段物种 空载体
原核抗性 卡那霉素

简介
       pEGFP-N3 encodes a red-shifted variant of wild-type GFP (1–3) which has been optimized for brighter fluorescence and higher expression in mammalian cells. (Excitation maximum = 488 nm; emission maximum = 507 nm.) pEGFP-N3 encodes the GFPmut1 variant (4) which contains the double-amino-acid substitution of Phe-64 to Leu and Ser-65 to Thr. The coding sequence of the EGFP gene contains more than 190 silent base changes which correspond to human codon-usage preferences (5). Sequences flanking EGFP have been converted to a Kozak consensus translation initiation site (6) to further increase the translation efficiency in eukaryotic cells. The MCS in pEGFP-N3 is between the immediate early promoter of CMV (PCMV IE) and the EGFP coding sequences. Genes cloned into the MCS will be expressed as fusions to the N terminus of EGFP if they are in the same reading frame as EGFP and there are no intervening stop codons. SV40 polyadenylation signals downstream of the EGFP gene direct proper processing of the 3' end of the EGFP mRNA. The vector backbone also contains an SV40 origin for replication in mammalian cells expressing the SV40 T-antigen. A neomycin resistance cassette (Neor), consisting of the SV40 early promoter, the neomycin/kanamycin resistance gene of Tn5, and polyadenylation signals from the Herpes simplex virus thymidine kinase (HSV TK) gene, allows stably transfected eukaryotic cells to be selected using G418. A bacterial promoter upstream of this cassette expresses kanamycin resistance in E. coli. The pEGFP-N3 backbone also provides a pUC origin of replication for propagation in E. coli and an f1 origin for single-stranded DNA production.


图谱



garmin 230