出品公司: | Clontech |
---|---|
载体名称: | pDsRed2-1 |
质粒类型: | 无启动子载体;荧光报告载体 |
高拷贝/低拷贝: | -- |
启动子: | 无 |
克隆方法: | 多克隆位点,限制性内切酶 |
载体大小: | 4107bp |
5' 测序引物及序列: | 5'-AGCTGGACATCACCTCCCACAACG-3' |
3' 测序引物及序列: | -- |
载体标签: | 红色荧光蛋白DsRed2 |
载体抗性: | 卡那霉素(Kanamycin) |
筛选标记: | 新霉素(Neomycin) |
克隆菌株: | TOP10, DH5α,HB101 |
宿主细胞(系): | 真核细胞 & 原核细胞 |
备注: |
pDsRed2-1载体不含启动子,将待研究的目的启动子插入MCS区,用于研究启动子及顺式转录元件在细胞内的作用水平 ; 既可用于原核细胞有可用于真核细胞。 |
产品目录号: | 632405 |
稳定性: | 稳表达 或 瞬表达 |
组成型: | -- |
病毒/非病毒: | 非病毒 |
pDsRed2-1
价格:1200元
联系方式:I47-825O-882O
买家导航
载体基本信息
载体质粒图谱和多克隆位点信息
载体简介
pDsRed2-1载体描述
pDsRed2-1 encodes DsRed2, a DsRed variant engineered for faster maturation and lower non-specific aggregation. Derived from the Discosoma sp. red fluorescent protein (drFP583; 1), DsRed2, like its progenitor DsRed1, contains a series of silent base-pair changes that correspond to human codon-usage preferences for high expression in mammalian cells (2). In addition to these changes, DsRed2 contains six amino acid substitutions: V105A, I161T, and S197A, which result in the more rapid appearance of red fluorescence in transfected cell lines; and R2A, K5E, and K9T, which prevent the protein from aggregating. (DsRed2 may, however, form the same tetrameric structure as DsRed1 [3].) In mammalian cell cultures when DsRed2 is expressed constitutively, red-emitting cells can be detected by fluorescence microscopy within 24 hours of transfection. Large insoluble aggregates of protein, often observed in bacterial and mammalian cell systems expressing DsRed1, are dramatically reduced in cells expressing DsRed2. The faster-maturing, more soluble red fluorescent protein is also well tolerated by host cells; mammalian cell cultures transfected with DsRed2 show no obvious signs of reduced viability—in those cell lines tested, cells expressing DsRed2 display the same morphology (e.g., adherence, light-refraction) and growth characteristics as non-transfected controls.
pDsRed2-1 is a promoterless DsRed2 vector that can be used to monitor transcription from different promoters and promoter/enhancer combinations inserted into the multiple cloning site (MCS). Sequences upstream of DsRed2 have been converted to a Kozak consensus translation initiation site (4) to increase translation efficiency in eukaryotic cells. SV40 polyadenylation signals downstream of the DsRed2 gene direct proper processing of the 3' end of the DsRed2 mRNA. The vector backbone contains an SV40 origin for replication in mammalian cells expressing the SV40 T antigen, a pUC origin of replication for propagation in E. coli, and an f1 origin for single-stranded DNA production. A neomycin-resistance cassette (Neor) allows stably transfected eukaryotic cells to be selected using G418. This cassette consists 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. A bacterial promoter upstream of the cassette expresses kanamycin resistance in E. coli.
DsRed2 can be used as an in vivo reporter of gene expression. Promoters should be cloned into the pDsRed2-1 MCS upstream from the DsRed2 coding sequence. Without addition of a functional promoter, this vector will not express DsRed2. The recombinant DsRed2 vector can be transfected into mammalian cells using any standard transfection method. If required, stable transfectants can be selected using G418 (5).
pDsRed2-1载体含有以下元件:
MCS: 12–83
Discosoma sp. human codon-optimized Red Fluorescent Protein (DsRed2) gene
Kozak consensus translation initiation site: 90–100
Start codon (ATG): 97–99; Stop codon: 772–774
SV40 early mRNA polyadenylation signal
Polyadenylation signals: 926–931 & 955–960
mRNA 3' ends: 964 & 976
f1 single-strand DNA origin: 1023–1478
(Packages noncoding strand of DsRed2.)
Ampicillin resistance (b-lactamase) promoter
–35 region: 1540–1545; –10 region: 1563–1568
Transcription start point: 1575
SV40 origin of replication: 1819–1954
SV40 early promoter
Enhancer (72-bp tandem repeats): 1650–1723 & 1724–1795
21-bp repeats: 1799–1819, 1820–1840 & 1842–1862
Early promoter element: 1875–1881
Major transcription start points: 1871, 1909, 1915 & 1920
Kanamycin/neomycin resistance gene
Neomycin phosphotransferase coding sequences:
Start codon (ATG): 2003–2005; stop codon: 2795–2797
G→A mutation to remove Pst I site: 2185
C→A (Arg→Ser) mutation to remove BssH II site: 2531
Herpes simplex virus (HSV) thymidine kinase (TK) polyadenylation signal
Polyadenylation signals: 3033–3038 & 3046–3051
pUC plasmid replication origin: 3382–4025
Propagation in E. Coli
Suitable host strains: DH5α, HB101 and other general purpose strains. Single-stranded DNA production requires
a host containing an F plasmid such as JM109 or XL1-Blue.
Selectable marker: plasmid confers resistance to kanamycin (50 μg/ml) to E. coli hosts.
E. coli replication origin: pUC
Copy number: ≈500
Plasmid incompatibility group: pMB1/Col E1
Red Fluorescent Protein (DsRed2)
Excitation/Emission Maxima: 558 nm / 583 nm
载体序列
LOCUS pDsRed2-1 4107 bp DNA SYN DEFINITION pDsRed2-1 ACCESSION KEYWORDS SOURCE ORGANISM other sequences; artificial sequences; vectors. FEATURES Location/Qualifiers source 1..4107 /organism="pDsRed2-1" /mol_type="other DNA" CDS complement(25..804) /label="ORF frame 1" CDS 97..774 /label="ORF frame 1" gene 100..771 /label="DsRed2" /gene="DsRed2" misc_feature complement(277..297) /label="dsRed1_N_primer" misc_feature 689..712 /label="dsRed1_C_primer" misc_feature 986..1005 /label="EBV_rev_primer" rep_origin complement(1155..1461) /label="f1_origin" promoter 1540..1568 /label="AmpR_promoter" misc_feature complement(1634..1654) /label="pBABE_3_primer" misc_feature complement(1640..1855) /label="SV40_enhancer" promoter 1652..1920 /label="SV40_promoter" rep_origin 1819..1896 /label="SV40_origin" misc_feature 1881..1900 /label="SV40pro_F_primer" CDS 2003..2797 /label="ORF frame 2" gene 2006..2794 /label="NeoR/KanR" /gene="NeoR/KanR" CDS complement(2312..2848) /label="ORF frame 3" terminator 2972..3241 /label="TK_PA_terminator" rep_origin 3389..4008 /label="pBR322_origin" ORIGIN 1 TAGTTATTAC TAGCGCTACC GGACTCAGAT CTCGAGCTCA AGCTTCGAAT TCTGCAGTCG 61 ACGGTACCGC GGGCCCGGGA TCCACCGGTC GCCACCATGG CCTCCTCCGA GAACGTCATC 121 ACCGAGTTCA TGCGCTTCAA GGTGCGCATG GAGGGCACCG TGAACGGCCA CGAGTTCGAG 181 ATCGAGGGCG AGGGCGAGGG CCGCCCCTAC GAGGGCCACA ACACCGTGAA GCTGAAGGTG 241 ACCAAGGGCG GCCCCCTGCC CTTCGCCTGG GACATCCTGT CCCCCCAGTT CCAGTACGGC 301 TCCAAGGTGT ACGTGAAGCA CCCCGCCGAC ATCCCCGACT ACAAGAAGCT GTCCTTCCCC 361 GAGGGCTTCA AGTGGGAGCG CGTGATGAAC TTCGAGGACG GCGGCGTGGC GACCGTGACC 421 CAGGACTCCT CCCTGCAGGA CGGCTGCTTC ATCTACAAGG TGAAGTTCAT CGGCGTGAAC 481 TTCCCCTCCG ACGGCCCCGT GATGCAGAAG AAGACCATGG GCTGGGAGGC CTCCACCGAG 541 CGCCTGTACC CCCGCGACGG CGTGCTGAAG GGCGAGACCC ACAAGGCCCT GAAGCTGAAG 601 GACGGCGGCC ACTACCTGGT GGAGTTCAAG TCCATCTACA TGGCCAAGAA GCCCGTGCAG 661 CTGCCCGGCT ACTACTACGT GGACGCCAAG CTGGACATCA CCTCCCACAA CGAGGACTAC 721 ACCATCGTGG AGCAGTACGA GCGCACCGAG GGCCGCCACC ACCTGTTCCT GTAGCGGCCG 781 CGACTCTAGA TCATAATCAG CCATACCACA TTTGTAGAGG TTTTACTTGC TTTAAAAAAC 841 CTCCCACACC TCCCCCTGAA CCTGAAACAT AAAATGAATG CAATTGTTGT TGTTAACTTG 901 TTTATTGCAG CTTATAATGG TTACAAATAA AGCAATAGCA TCACAAATTT CACAAATAAA 961 GCATTTTTTT CACTGCATTC TAGTTGTGGT TTGTCCAAAC TCATCAATGT ATCTTAAGGC 1021 GTAAATTGTA AGCGTTAATA TTTTGTTAAA ATTCGCGTTA AATTTTTGTT AAATCAGCTC 1081 ATTTTTTAAC CAATAGGCCG AAATCGGCAA AATCCCTTAT AAATCAAAAG AATAGACCGA 1141 GATAGGGTTG AGTGTTGTTC CAGTTTGGAA CAAGAGTCCA CTATTAAAGA ACGTGGACTC 1201 CAACGTCAAA GGGCGAAAAA CCGTCTATCA GGGCGATGGC CCACTACGTG AACCATCACC 1261 CTAATCAAGT TTTTTGGGGT CGAGGTGCCG TAAAGCACTA AATCGGAACC CTAAAGGGAG 1321 CCCCCGATTT AGAGCTTGAC GGGGAAAGCC GGCGAACGTG GCGAGAAAGG AAGGGAAGAA 1381 AGCGAAAGGA GCGGGCGCTA GGGCGCTGGC AAGTGTAGCG GTCACGCTGC GCGTAACCAC 1441 CACACCCGCC GCGCTTAATG CGCCGCTACA GGGCGCGTCA GGTGGCACTT TTCGGGGAAA 1501 TGTGCGCGGA ACCCCTATTT GTTTATTTTT CTAAATACAT TCAAATATGT ATCCGCTCAT 1561 GAGACAATAA CCCTGATAAA TGCTTCAATA ATATTGAAAA AGGAAGAGTC CTGAGGCGGA 1621 AAGAACCAGC TGTGGAATGT GTGTCAGTTA GGGTGTGGAA AGTCCCCAGG CTCCCCAGCA 1681 GGCAGAAGTA TGCAAAGCAT GCATCTCAAT TAGTCAGCAA CCAGGTGTGG AAAGTCCCCA 1741 GGCTCCCCAG CAGGCAGAAG TATGCAAAGC ATGCATCTCA ATTAGTCAGC AACCATAGTC 1801 CCGCCCCTAA CTCCGCCCAT CCCGCCCCTA ACTCCGCCCA GTTCCGCCCA TTCTCCGCCC 1861 CATGGCTGAC TAATTTTTTT TATTTATGCA GAGGCCGAGG CCGCCTCGGC CTCTGAGCTA 1921 TTCCAGAAGT AGTGAGGAGG CTTTTTTGGA GGCCTAGGCT TTTGCAAAGA TCGATCAAGA 1981 GACAGGATGA GGATCGTTTC GCATGATTGA ACAAGATGGA TTGCACGCAG GTTCTCCGGC 2041 CGCTTGGGTG GAGAGGCTAT TCGGCTATGA CTGGGCACAA CAGACAATCG GCTGCTCTGA 2101 TGCCGCCGTG TTCCGGCTGT CAGCGCAGGG GCGCCCGGTT CTTTTTGTCA AGACCGACCT 2161 GTCCGGTGCC CTGAATGAAC TGCAAGACGA GGCAGCGCGG CTATCGTGGC TGGCCACGAC 2221 GGGCGTTCCT TGCGCAGCTG TGCTCGACGT TGTCACTGAA GCGGGAAGGG ACTGGCTGCT 2281 ATTGGGCGAA GTGCCGGGGC AGGATCTCCT GTCATCTCAC CTTGCTCCTG CCGAGAAAGT 2341 ATCCATCATG GCTGATGCAA TGCGGCGGCT GCATACGCTT GATCCGGCTA CCTGCCCATT 2401 CGACCACCAA GCGAAACATC GCATCGAGCG AGCACGTACT CGGATGGAAG CCGGTCTTGT 2461 CGATCAGGAT GATCTGGACG AAGAGCATCA GGGGCTCGCG CCAGCCGAAC TGTTCGCCAG 2521 GCTCAAGGCG AGCATGCCCG ACGGCGAGGA TCTCGTCGTG ACCCATGGCG ATGCCTGCTT 2581 GCCGAATATC ATGGTGGAAA ATGGCCGCTT TTCTGGATTC ATCGACTGTG GCCGGCTGGG 2641 TGTGGCGGAC CGCTATCAGG ACATAGCGTT GGCTACCCGT GATATTGCTG AAGAGCTTGG 2701 CGGCGAATGG GCTGACCGCT TCCTCGTGCT TTACGGTATC GCCGCTCCCG ATTCGCAGCG 2761 CATCGCCTTC TATCGCCTTC TTGACGAGTT CTTCTGAGCG GGACTCTGGG GTTCGAAATG 2821 ACCGACCAAG CGACGCCCAA CCTGCCATCA CGAGATTTCG ATTCCACCGC CGCCTTCTAT 2881 GAAAGGTTGG GCTTCGGAAT CGTTTTCCGG GACGCCGGCT GGATGATCCT CCAGCGCGGG 2941 GATCTCATGC TGGAGTTCTT CGCCCACCCT AGGGGGAGGC TAACTGAAAC ACGGAAGGAG 3001 ACAATACCGG AAGGAACCCG CGCTATGACG GCAATAAAAA GACAGAATAA AACGCACGGT 3061 GTTGGGTCGT TTGTTCATAA ACGCGGGGTT CGGTCCCAGG GCTGGCACTC TGTCGATACC 3121 CCACCGAGAC CCCATTGGGG CCAATACGCC CGCGTTTCTT CCTTTTCCCC ACCCCACCCC 3181 CCAAGTTCGG GTGAAGGCCC AGGGCTCGCA GCCAACGTCG GGGCGGCAGG CCCTGCCATA 3241 GCCTCAGGTT ACTCATATAT ACTTTAGATT GATTTAAAAC TTCATTTTTA ATTTAAAAGG 3301 ATCTAGGTGA AGATCCTTTT TGATAATCTC ATGACCAAAA TCCCTTAACG TGAGTTTTCG 3361 TTCCACTGAG CGTCAGACCC CGTAGAAAAG ATCAAAGGAT CTTCTTGAGA TCCTTTTTTT 3421 CTGCGCGTAA TCTGCTGCTT GCAAACAAAA AAACCACCGC TACCAGCGGT GGTTTGTTTG 3481 CCGGATCAAG AGCTACCAAC TCTTTTTCCG AAGGTAACTG GCTTCAGCAG AGCGCAGATA 3541 CCAAATACTG TCCTTCTAGT GTAGCCGTAG TTAGGCCACC ACTTCAAGAA CTCTGTAGCA 3601 CCGCCTACAT ACCTCGCTCT GCTAATCCTG TTACCAGTGG CTGCTGCCAG TGGCGATAAG 3661 TCGTGTCTTA CCGGGTTGGA CTCAAGACGA TAGTTACCGG ATAAGGCGCA GCGGTCGGGC 3721 TGAACGGGGG GTTCGTGCAC ACAGCCCAGC TTGGAGCGAA CGACCTACAC CGAACTGAGA 3781 TACCTACAGC GTGAGCTATG AGAAAGCGCC ACGCTTCCCG AAGGGAGAAA GGCGGACAGG 3841 TATCCGGTAA GCGGCAGGGT CGGAACAGGA GAGCGCACGA GGGAGCTTCC AGGGGGAAAC 3901 GCCTGGTATC TTTATAGTCC TGTCGGGTTT CGCCACCTCT GACTTGAGCG TCGATTTTTG 3961 TGATGCTCGT CAGGGGGGCG GAGCCTATGG AAAAACGCCA GCAACGCGGC CTTTTTACGG 4021 TTCCTGGCCT TTTGCTGGCC TTTTGCTCAC ATGTTCTTTC CTGCGTTATC CCCTGATTCT 4081 GTGGATAACC GTATTACCGC CATGCAT //