BeNa Culture Collection

  • Escherichia coli DH5α(pET28a-EGFP)-BNCC

Escherichia coli DH5α(pET28a-EGFP)

  • Price: $143
  • number:BNCC359701
  • Packing:freeze dried
Essential Information Certificate Related Products
Escherichia coli DH5α(pET28a-EGFP)
Culture medium LB + 50mcg/ml kanamycin: yeast extract 5.0g, peptone 10.0g,NaCl 10.0g, distilled water 1.0L,pH 7.0. Sterilization at 121 ℃ for 15min. After sterilization, kanamycin was added when the culture medium was cooled to 40-50 ℃ at a concentration of 50mcg/ml.
Subculture procedure (1) Prepare a test tube containing 5~10mL of liquid medium and 2 plates; (2) Open it in the safety cabinet, heat the tip of ampoule in a flame, quickly drop sterile water to creak it, then break it with forceps; (3) draw 0.5mL of liquid culture medium into a freeze dried ampoule, fully rehydrate and transfer the solution to the liquid test tube, mix evenly; (4) inoculate a plate with 0.2mL of suspension liquid, repeat the step to obtain two plates; ⑤ Put all the liquid test tubes and plates under the above culture conditions for cultivation, and the strains can be used when they grow.
Growth conditions 37 ℃, aerobic, 18-24h
Storage conditions 2-8 ℃
application Scientific research
Sharing mode Public welfare sharing

Escherichia coli DH5α(pET28a-EGFP)

Storage conditions : 2~8 ℃

No. : 359701

Product format :freeze dried, 200ul

Validity : 6 years

Biosafety level : 1, handle in ultra-clean table or safety cabinet

Receiving notice: if any abnormality is found on the day of receipt, please contact the customer service within 24 hours. If it is overdue, it is deemed that the bacteria are well. The freeze dried culture shall be used up once and shall not be retained. The bacterial viability will resume after 1-2 generation of recovery and can be used normally. Handling instructions of agar plate is enclosed. Please operate in strict accordance with this instruction, otherwise the replacement of bacteria are not be available in case of aberrant growth and loss of viability

Medium:LB resistant agar medium yeast extract 5.0g, peptone 10.0g,NaCl 10.0g, agar 15.0g (not included in liquid medium), distilled water 1.0 L,pH 7.0. Sterilization at 121 ℃ for 15min. After sterilization, cooling and cooling, add kanamycin to make the final content of kanamycin in the culture medium 50 μg/mL.

Recovery steps:

1. Prepare 1 sterile liquid test tube (including 5~10mL of culture medium) and 2 pieces of 90mm plate;

2. After disinfecting the surface of the ampoule tube, open it in the safety cabinet, burn the top with an alcohol lamp, quickly drop sterile water to break it, and then break it with tweezers;

3. suck 0.5mL of liquid culture medium and put it into the freeze-drying tube, fully dissolve it and return it to the liquid test tube again and mix well.

4. Draw the mixed solution from the test tube liquid to apply the flat plate, 200 μL/piece;

5. Put all the test tubes and plates under the above specified conditions for cultivation. It is forbidden to seal and wind the plates. After 18-24 hours, observe the obvious turbidity of the culture medium and the growth of plate colonies or moss.

6. if the strain has not grown, it should continue to be cultured for 72h until a single colony or moss grows.

Host bacteria:BNCC353719 DH5α;

Plasmid:BNCC342269 pET28a-EGFP (containing kanamycin resistance gene).

Growth conditions: 37 ℃ aerobic 18-24h.

Plasmid purification:

1. pick a single colony and inoculate it into 50mL liquid LB resistance medium, and culture at 37 ℃ overnight;

2. according to the experimental requirements, absorb appropriate amount of bacterial liquid for plasmid extraction.

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