Team:Stockholm/30 June 2010

From 2010.igem.org

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(Expression of SOD and yCCS from pEX expression vector)
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= Andreas =
= Andreas =
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== Expression of SOD and yCCS from pEX expression vector ==
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=== Expression of SOD and yCCS from pEX expression vector ===
''Continued from 29/6''
''Continued from 29/6''
We realized that Top10 and DH5alpha are not suitable for IPTG-induced protein expression. SOD and yCCS expression was therefore not proceeded from ON cultures. '''Glycerol stocks''' were prepared from ON culture and '''pEX.SOD''' and '''pEX.yCCS plasmids''' were prepared.
We realized that Top10 and DH5alpha are not suitable for IPTG-induced protein expression. SOD and yCCS expression was therefore not proceeded from ON cultures. '''Glycerol stocks''' were prepared from ON culture and '''pEX.SOD''' and '''pEX.yCCS plasmids''' were prepared.
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==== DNA concentrations ====
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'''DNA concentrations'''
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{|
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{|border="1" cellspacing="0" cellpadding="2"
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|Sample
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|'''Sample'''
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|[nucleic acid] (ng/ul)
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|'''DNA conc (ng/ul)'''
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|A(260)/A(280)
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|'''A(260)/A(280)'''
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|pEX.SOD
|pEX.SOD
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*pEX.SOD:
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=== Preparation of competent BL21(DE3) cells ===
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* 5 ml LB was inoculated with BL21(DE3) cells and grown ON in 37°C, 250 rpm.
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== Preparation of competent BL21(DE3) cells ==
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* ON culture was set and grown in 37°C ON with 250 rpm rotary shaking.
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Revision as of 10:03, 6 July 2010


Contents

Morning meeting

We discussed the project proceedings.

  • It was decided that already amplified genes (cloned in pEX vector) should be transferred to pSB1C3 vector.
    • IgG protease
    • Superoxidase dismutase (SOD)
      • yCCS
    • bFGF
  • Primers for not-yet amplified genes should be redesigned to include the complete Assembly standard 25 prefix and suffix.
    • CPP
      • Transportan 10
      • LMWP
      • TAT
    • MITF
    • Protein A Z-domain
    • Tyrosinase
    • Vitamin B9 genes
  • BL21(DE3) was chosen as our strain for IPTG-induced protein expression from pEX vector.

Andreas

Expression of SOD and yCCS from pEX expression vector

Continued from 29/6

We realized that Top10 and DH5alpha are not suitable for IPTG-induced protein expression. SOD and yCCS expression was therefore not proceeded from ON cultures. Glycerol stocks were prepared from ON culture and pEX.SOD and pEX.yCCS plasmids were prepared.

DNA concentrations

Sample DNA conc (ng/ul) A(260)/A(280)
pEX.SOD 18.15 1.98
pEX.yCCS 20.55 1.97

Preparation of competent BL21(DE3) cells

  • 5 ml LB was inoculated with BL21(DE3) cells and grown ON in 37°C, 250 rpm.