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枚馨言子銅蟲(chóng) (小有名氣)
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[求助]
大腸桿菌DH5a與S17-1區(qū)別是什么啊?有知道的朋友麻煩告訴一下,謝謝
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麻煩問(wèn)一下大家:大腸桿菌DH5a與S17-1區(qū)別是什么。坑兄赖呐笥崖闊└嬖V一下,謝謝 還有,將重組質(zhì)粒轉(zhuǎn)化到S17-1中后,可不可以用這個(gè)S17-1/重組子 菌種來(lái)提取質(zhì)粒? 提到的質(zhì)粒會(huì)不會(huì)被甲基化或者受S17-1別的影響啊?急求高手答案,O(∩_∩)O謝謝啦~ |
【分子生物】EPI帖 | 蛋白表達(dá)純化與檢測(cè) |

至尊木蟲(chóng) (著名寫手)
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區(qū)別是基因型不一樣,也可以提取質(zhì)粒,參考下面: 大腸桿菌DH5α: F-endA1 glnV44 thi-1 recA1 relA1 gyrA96 deoR nupG Φ80dlacZΔM15 Δ(lacZYA-argF)U169,hsdR17(rK- mK+), λ– An Hoffman-Berling 1100 strain derivative (Meselson68) Promega also lists phoA nalidixic acid resistant References: FOCUS (1986) 8:2, 9. Hanahan, D. (1985) in DNA Cloning: A Practical Approach (Glover, D.M., ed.), Vol. 1, p. 109,IRL Press, McLean, Virginia. Grant, S.G.N. et al. (1990) Proc. Natl. Acad. Sci. USA 87: 4645-4649 PMID 2162051. Meselson M. and Yuan R. (1968) Nature 217:1110 PMID 4868368. 大腸桿菌S17-1 Genotype: recA pro hsdR RP4-2-Tc::Mu-Km::Tn7 Growth Conditions: Protocol: plus trimethopirm (10 mcg/ml) Temperature: 37.0°C Applications: transformation host Comments: Recommended mobilization host for pARO180, pARO190, pARO181, and pARO191 (ATCC 77123-77126, respectively) because it contains chromosomally integrated tra genes. [29601] A kanamycin-sensitive strain devoid of the E. coli K-12-specific restriction system allowing efficient uptake of foreign DNA. [41566] The properties of streptomycin, trimethoprim, and spectinomycin resistance were verified. RP4-Tc::Mu-Km::Tn7 is integrated into the chromosome. [29601] References: 29601: Parke D. Construction of mobilizable vectors derived from plasmids RP4, pUC18 and pUC19. Gene 93: 135-137, 1990. PubMed: 2227423 30953: Simon R, et al. A broad host range mobilization system for in vivo genetic engineering: transposon mutagenesis in Gram negative bacteria. Bio-Technology 1: 784-791, 1983. 41566: McFarlane GJ, et al. A simplified method for conjugal gene transfer into the filamentous cyanobacterium Anabaena sp. ATCC 27893. J. Microbiol. Methods 6: 301-305, 1987. |
新蟲(chóng) (初入文壇)
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樓主有 E.coli S17-1 這個(gè)菌啊,能不能寄株給我? 購(gòu)買或者交換都可以的。我這兒有 DH5a, JM109 和 BL21 (可以His tag 融合表達(dá)的菌)。 萬(wàn)分感謝! 我的郵箱: fanshicun070503@163.com |
銅蟲(chóng) (小有名氣)

新蟲(chóng) (初入文壇)
銅蟲(chóng) (小有名氣)

鐵桿木蟲(chóng) (小有名氣)


鐵蟲(chóng) (初入文壇)
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