出品公司: | Takara |
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载体名称: | pCold II, pColdII, pCold-II |
质粒类型: | 大肠杆菌蛋白表达载体 |
表达水平: | 高 |
启动子: | CSPA |
克隆方法: | 多克隆位点,限制性内切酶 |
载体大小: | 4392 bp |
5' 测序引物及序列: | pCold-F: 5'-ACGCCATATCGCCGAAAGG-3' |
3' 测序引物及序列: | pCold-R: 5'-GGCAGGGATCTTAGATTCTG-3' |
载体标签: | N-His, |
载体抗性: | Ampicillin 氨苄 |
备注: |
温度诱导,冷休克蛋白表达载体
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产品目录号: | 3362 |
稳定性: | 瞬时表达 Transient |
组成型: | 诱导表达 |
病毒/非病毒: | 非病毒 |
买家导航
pCold II载体 pColdII质粒基本信息
pCold II质粒图谱 pColdII载体图谱和pCold II载体序列 pColdII质粒序列多克隆位点信息
pCold II质粒 pColdII载体简介
阐明蛋白质的结构和功能是后基因组研究的一个重要课题。高效率的蛋白质表达系统是研究这些课题的不可缺少的基本技术。大肠杆菌作为宿主的表达系统中被广泛 使用于生产重组蛋白。大肠杆菌表达系统具有良好的优势,方法简单,成本低。然而,对于某些基因,蛋白表达很困难,表达的蛋白质不溶。
为了解决这些问题,TAKARA与Masayori Inouye教授(美国新泽西医学和牙科大学)进行联合研究,以制定一个高效基于低温冷休克蛋白基因的大肠杆菌表达载体。pCold DNA系列产品具有上述的优点,并提供了一个重要功能和结构的分析以及其他蛋白质研究领域的工具。
<产品概况和特点>
当培养的大肠杆菌的温度充分降低,几乎暂时停止生长大部分的蛋白表达减少,而此时一组蛋白质称为“冷休克蛋白”被专门诱导表达。
冷休克表达载体,pCold I-IV,是利用冷休克基因CSPA启动子设计高效率蛋白质表达载体。 CSPA的启动子的下游处,插入了lac操纵子,以便严格控制表达。此外,5'非翻译区(5'UTR),翻译增强元件(TEE),His标签序列,Xa因 子切割位点和多克隆位点(MCS)位于在CSPA启动子的下游的。由于该产品采用了大肠杆菌的启动子,大多数大肠杆菌菌株可被用作表达宿主。有四种类型的 pCold载体,他们的下列原件的位置稍有不同,TEE,His标签序列和Factor XA酶切位点。
pCold II质粒序列 pColdII载体序列
LOCUS pCold\II 4392 bp DNA circular SYN 10-AUG-2004 DEFINITION Expression vector pColdII DNA, complete sequence. ACCESSION AB186389 VERSION AB186389.1 GI:51090250 KEYWORDS . SOURCE Expression vector pColdII ORGANISM Expression vector pColdII other sequences; artificial sequences; vectors. COMMENT This file is created by Vector NTI http://www.biofeng.com/ COMMENT VNTAUTHORNAME|biofeng.com| FEATURES Location/Qualifiers source 1..4392 /organism="Expression vector pColdII" /mol_type="other DNA" /db_xref="taxon:289230" /lab_host="Escherichia coli" /note="expresses an open reading frame as a fusion to a His6 containing translation enhancing element. This plasmid is derived from pUC118." gene 15..497 /gene="cspA" promoter 15..81 /gene="cspA" misc_feature 82..121 /gene="cspA" /note="synthetic lac operator sequence" 5'UTR 122..255 /gene="cspA" /note="modified cspA 5'UTR" misc_feature 256..270 /gene="cspA" /note="TEE (translation enhancing element)" misc_feature 271..288 /gene="cspA" /note="His6 tag" misc_feature 286..345 /gene="cspA" /note="MCS = Multiple cloning sites contain the follow restriction sites: NdeI, SacI, KpnI, XhoI, BamHI, EcoRI, HindIII, SalI, PstI, XbaI" 3'UTR 353..497 /gene="cspA" /note="cspA 3'UTR" misc_feature complement(696..1169) /note="M13 intergenic region" gene 1356..2216 /gene="Amp" CDS 1356..2216 /gene="Amp" /codon_start=1 /transl_table=11 /product="beta-lactamase" /protein_id="BAD35136.1" /db_xref="GI:51090251" /translation="MSIQHFRVALIPFFAAFCLPVFAHPETLVKVKDAEDQLGARVGY IELDLNSGKILESFRPEERFPMMSTFKVLLCGAVLSRIDAGQEQLGRRIHYSQNDLVE YSPVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGPKELTAFLHNMGDHVTRL DRWEPELNEAIPNDERDTTMPVAMATTLRKLLTGELLTLASRQQLIDWMEADKVAGPL LRSALPAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTGSQATMDERNRQIA EIGASLIKHW" rep_origin 2376..2990 /note="ColE1 origin" gene complement(3147..4229) /gene="lacI" CDS complement(3147..4229) /gene="lacI" /codon_start=1 /transl_table=11 /product="lactose operon repressor" /protein_id="BAD35137.1" /db_xref="GI:51090252" /translation="MKPVTLYDVAEYAGVSYQTVSRVVNQASHVSAKTREKVEAAMAE LNYIPNRVAQQLAGKQSLLIGVATSSLALHAPSQIVAAIKSRADQLGASVVVSMVERS GVEACKAAVHNLLAQRVSGLIINYPLDDQDAIAVEAACTNVPALFLDVSDQTPINSII FSHEDGTRLGVEHLVALGHQQIALLAGPLSSVSARLRLAGWHKYLTRNQIQPIAEREG DWSAMSGFQQTMQMLNEGIVPTAMLVANDQMALGAMRAITESGLRVGADISVVGYDDT EDSSCYIPPLTTIKQDFRLLGQTSVDRLLQLSQGQAVKGNQLLPVSLVKRKTTLAPNT QTASPRALADSLMQLARQVSRLESGQ" ORIGIN 1 aaggaatggt gtggccgatt aatcataaat atgaaaaata attgttgcat cacccgccaa 61 tgcgtggctt aatgcacatc aaattgtgag cggataacaa tttgatgtgc tagcgcatat 121 ccagtgtagt aaggcaagtc ccttcaagag ttatcgttga tacccctcgt agtgcacatt 181 cctttaacgc ttcaaaatct gtaaagcacg ccatatcgcc gaaaggcaca cttaattatt 241 aagaggtaat acaccatgaa tcacaaagtg catcatcatc atcatcatat ggagctcggt 301 accctcgagg gatccgaatt caagcttgtc gacctgcagt ctagataggt aatctctgct 361 taaaagcaca gaatctaaga tccctgccat ttggcgggga tttttttatt tgttttcagg 421 aaataaataa tcgatcgcgt aataaaatct attattattt ttgtgaagaa taaatttggg 481 tgcaatgaga atgcgcaggc cctttcgtct cgcgcgtttc ggtgatgacg gtgaaaacct 541 ctgacacatg cagctcccgg agacggtcac agcttgtctg taagcggatg ccgggagcag 601 acaagcccgt cagggcgcgt cagcgggtgt tggcgggtgt cggggctggc ttaactatgc 661 ggcatcagag cagattgtac tgagagtgca ccataaaatt gtaaacgtta atattttgtt 721 aaaattcgcg ttaaattttt gttaaatcag ctcatttttt aaccaatagg ccgaaatcgg 781 caaaatccct tataaatcaa aagaatagcc cgagataggg ttgagtgttg ttccagtttg 841 gaacaagagt ccactattaa agaacgtgga ctccaacgtc aaagggcgaa aaaccgtcta 901 tcagggcgat ggcccactac gtgaaccatc acccaaatca agttttttgg ggtcgaggtg 961 ccgtaaagca ctaaatcgga accctaaagg gagcccccga tttagagctt gacggggaaa 1021 gccggcgaac gtggcgagaa aggaagggaa gaaagcgaaa ggagcgggcg ctagggcgct 1081 ggcaagtgta gcggtcacgc tgcgcgtaac caccacaccc gccgcgctta atgcgccgct 1141 acagggcgcg tactatggtt gctttgacgt atgcggtgtg aaataccgca cagatgcgta 1201 aggagaaaat accgcatcag gcgtcaggtg gcacttttcg gggaaatgtg cgcggaaccc 1261 ctatttgttt atttttctaa atacattcaa atatgtatcc gctcatgaga caataaccct 1321 gataaatgct tcaataatat tgaaaaagga agagtatgag tattcaacat ttccgtgtcg 1381 cccttattcc cttttttgcg gcattttgcc ttcctgtttt tgctcaccca gaaacgctgg 1441 tgaaagtaaa agatgctgaa gatcagttgg gtgcacgagt gggttacatc gaactggatc 1501 tcaacagcgg taagatcctt gagagttttc gccccgaaga acgttttcca atgatgagca 1561 cttttaaagt tctgctatgt ggcgcggtat tatcccgtat tgacgccggg caagagcaac 1621 tcggtcgccg catacactat tctcagaatg acttggttga gtactcacca gtcacagaaa 1681 agcatcttac ggatggcatg acagtaagag aattatgcag tgctgccata accatgagtg 1741 ataacactgc ggccaactta cttctgacaa cgatcggagg accgaaggag ctaaccgctt 1801 ttttgcacaa catgggggat catgtaactc gccttgatcg ttgggaaccg gagctgaatg 1861 aagccatacc aaacgacgag cgtgacacca cgatgcctgt agcaatggca acaacgttgc 1921 gcaaactatt aactggcgaa ctacttactc tagcttcccg gcaacaatta atagactgga 1981 tggaggcgga taaagttgca ggaccacttc tgcgctcggc ccttccggct ggctggttta 2041 ttgctgataa atctggagcc ggtgagcgtg ggtctcgcgg tatcattgca gcactggggc 2101 cagatggtaa gccctcccgt atcgtagtta tctacacgac ggggagtcag gcaactatgg 2161 atgaacgaaa tagacagatc gctgagatag gtgcctcact gattaagcat tggtaactgt 2221 cagaccaagt ttactcatat atactttaga ttgatttaaa acttcatttt taatttaaaa 2281 ggatctaggt gaagatcctt tttgataatc tcatgaccaa aatcccttaa cgtgagtttt 2341 cgttccactg agcgtcagac cccgtagaaa agatcaaagg atcttcttga gatccttttt 2401 ttctgcgcgt aatctgctgc ttgcaaacaa aaaaaccacc gctaccagcg gtggtttgtt 2461 tgccggatca agagctacca actctttttc cgaaggtaac tggcttcagc agagcgcaga 2521 taccaaatac tgttcttcta gtgtagccgt agttaggcca ccacttcaag aactctgtag 2581 caccgcctac atacctcgct ctgctaatcc tgttaccagt ggctgctgcc agtggcgata 2641 agtcgtgtct taccgggttg gactcaagac gatagttacc ggataaggcg cagcggtcgg 2701 gctgaacggg gggttcgtgc acacagccca gcttggagcg aacgacctac accgaactga 2761 gatacctaca gcgtgagcta tgagaaagcg ccacgcttcc cgaagggaga aaggcggaca 2821 ggtatccggt aagcggcagg gtcggaacag gagagcgcac gagggagctt ccagggggaa 2881 acgcctggta tctttatagt cctgtcgggt ttcgccacct ctgacttgag cgtcgatttt 2941 tgtgatgctc gtcagggggg cggagcctat ggaaaaacgc cagcaacgcg gcctttttac 3001 ggttcctggc cttttgctgg ccttttgctc acatagtcat gccccgcgcc caccggaagg 3061 agctgactgg gttgaaggct ctcaagggca tcggtcgaga tcccggtgcc taatgagtga 3121 gctaacttac attaattgcg ttgcgctcac tgcccgcttt ccagtcggga aacctgtcgt 3181 gccagctgca ttaatgaatc ggccaacgcg cggggagagg cggtttgcgt attgggcgcc 3241 agggtggttt ttcttttcac cagtgagacg ggcaacagct gattgccctt caccgcctgg 3301 ccctgagaga gttgcagcaa gcggtccacg ctggtttgcc ccagcaggcg aaaatcctgt 3361 ttgatggtgg ttaacggcgg gatataacat gagctgtctt cggtatcgtc gtatcccact 3421 accgagatat ccgcaccaac gcgcagcccg gactcggtaa tggcgcgcat tgcgcccagc 3481 gccatctgat cgttggcaac cagcatcgca gtgggaacga tgccctcatt cagcatttgc 3541 atggtttgtt gaaaaccgga catggcactc cagtcgcctt cccgttccgc tatcggctga 3601 atttgattgc gagtgagata tttatgccag ccagccagac gcagacgcgc cgagacagaa 3661 cttaatgggc ccgctaacag cgcgatttgc tggtgaccca atgcgaccag atgctccacg 3721 cccagtcgcg taccgtcttc atgggagaaa ataatactgt tgatgggtgt ctggtcagag 3781 acatcaagaa ataacgccgg aacattagtg caggcagctt ccacagcaat ggcatcctgg 3841 tcatccagcg gatagttaat gatcagccca ctgacgcgtt gcgcgagaag attgtgcacc 3901 gccgctttac aggcttcgac gccgcttcgt tctaccatcg acaccaccac gctggcaccc 3961 agttgatcgg cgcgagattt aatcgccgcg acaatttgcg acggcgcgtg cagggccaga 4021 ctggaggtgg caacgccaat cagcaacgac tgtttgcccg ccagttgttg tgccacgcgg 4081 ttgggaatgt aattcagctc cgccatcgcc gcttccactt tttcccgcgt tttcgcagaa 4141 acgtggctgg cctggttcac cacgcgggaa acggtctgat aagagacacc ggcatactct 4201 gcgacatcgt ataacgttac tggtttcaca ttcaccaccc tgaattgact ctcttccggg 4261 cgctatcatg ccataccgcg aaaggttttg cgccattcga tggtgtccgg gatctcgacg 4321 ctctccctta tgcgactcct gcattaggaa gcagcccagt agtaggttga ggccgttgag 4381 caccgccgcc gc //