Team:Freiburg Bioware/NoteBook/Labjournal/October

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136. labday 01.10.2010

mini preps of CD clones

Investigator: Kira

c(p689)= 115 ng/ul
c(690)= 151, 20 ng/ul
c(691)= 122,27 ng/ul
c(p692) = 126,42 ng/ul

test digestion of CD clones

Investigator: Kira

Components sample Volume/µL
DNA 4,0 µl
BSA (10x) 2 µl
Buffer no. 4 2,0 µl
Enzyme 1 XbaI 1,0 µl
Enzyme 2 AgeI 1,5 µl
H2O 9,5 µl
Total volume 20


incubation @ 37 C for approx. 2 h

1% agarose gel

Freiburg10 CD testdigestion 2010-10-01.jpg

Biobrick assembly pSB1C3_lITR_hTERT_beta-globin_CD

Investigator: Kira

c(pSB1C3_lITR_hTERT_beta-globin)= 333 ng/ul
c(pSB1C3_CD)= 151 ng/ul

Components vector Volume/µL insert Volume/µL
DNA 4,5 µl 6
BSA (10x) 3 µl 3
Buffer no. 4 3,0 µl 3
Enzyme 1 XbaI 0 µl1,5
Enzyme 2 SpeI 1,5 µl 0
Enzyme 3 PstI-HF 1,0 1
H2O 17 15,5
Total volume 25


incubation @ 37 C for approx. 2 h

1% agarose gel

Freiburg10 CD-beta-globin.jpg

Ligation

DNA-mix: 8 ul (vector 4,6ul)+(insert 3,4 ul)
T4 ligase: 1 ul
T4 buffer: 1 ul
Incubation @ RT for 30 min

Transformation was performed according to the standard protocol w BL21 cells.


Sequencing results of pCerulean_Zegfr:1907_MiddleLinker_VP2/3_HSPG-KO

Investigator: Hanna

Comment: All N-terminal fusion approaches with VP2/3_HSPG-KO revealed positive results except of pCerulean_Zegfr:1907_MiddleLinker_VP2/3_HSPG-KO. Another clone was picked, preped, test digested and sent for sequencing.

Freiburg10 pCerulean Zegfr1907 ML VP23HSPGKO.png


Conclusion: Sequencing results revealed positive results.

Picking clones of pGA14_MiddleLinker_VP2/3_insCap and pGA14_MiddleLinker_VP2/3_HSPG-KO

Investigator: Hanna

Unfortunately there grew a bacteria lawn over night - it was hardly not possible to pick clones. Nevertheless I tried and picked 2 clones of pGA14_MiddleLinker_VP2/3_insCap and pGA14_MiddleLinker_VP2/3_HSPG-KO.
To do: Mini-Prep and test digestion.

Sequencing results of pSB1C3_001_VP2/3_587-KO_BAP and pSB1C3_001_VP2/3_587-KO_6xHis

Investigator: Hanna

Comment: For the creation of our super constructs, the His-Tag and the BAP motif need to be cloned into VP2/3 for N-terminal fusion to VP2. Sequencing results showed that the 6xHis and BAP motif was not cloned into VP2/3_insCap.


To do: Clone 587-KO_6xHis and 587-KO_BAP into pSB1C3_001_VP2/3_insCap 1. via digestion of inserts and 2. via hybridization of referring oligos - digestion of vector with 800-900 ng.

Impressions of transfection of AAV293 with pCerulean_VP1up_NLS_mVenus_VP2/3

Investigator: Adrian

Yesterday AAV293 cells were transfected with pCerulean_VP1up_NLS_mVenus_VP2/3 and GMK-TK30 as gene of interest. Today, nuclear localization of the produced mVenus_VP2/3 fusion protein was visible and can be nicely seen in the following pictures:

Freiburg10 VP mVenus fusion localisation 5.jpg
Freiburg10 VP mVenus fusion localisation 7.jpg

















Conclusion: The VP2/3 fusion particle was transcribed and translated AND was transported back into the nucleus in order to be packaged by the ITR-flanked gene of interest.

Cloning of hGH_rITR into pSB1C3_lITR_phTERT_beta-globin_CFP and lITR_phTERT_beta-globin_mGMK_TK30 into pSB1C3_hGH_rITR

Investigator: Stefan

Vector name:

  • pSB1C3_lITR_phTERT_beta-globin_CFP (P682)
  • pSB1C3_hGH_rITR (P186)

Insert name:

  • pSB1C3_hGH_rITR (P186)</li>
  • pSB1C3_lITR_phTERT_beta-globin_mGMK_TK30 (P672)</li>
  • pSB1C3_lITR_phTERT_beta-globin_mGMK_TK30 (P673)</li>


    components volume for P186 /µlvolume of P186 X+P /µl volume of P672 + P673 /µl volume of P682 /µl
    DNA 10 33
    BSA (10x) 3 2 2
    Buffer 4 (10x)3 2 2
    Enzyme NgoMIV1- -
    Enzyme PstI11 1
    Enzyme MscI1- -
    Enzyme AgeI-1 1
    H2O111111
    Total volume (e.g. 15,20,25,30 µl) 30 2020


    Gel:
    0,5 g Agarose, 50 ml TAE (1%), 3 µl GELRED , at 115 Volt



    Freiburg10 digestion cloning BAP His to Affi Middle.jpg



    Gel extraction:
    Was performed according to protocol.


    T4 Ligation:

    ligation name 408 + 660408 + 661408 + 662408 + 663426 + 662426 + 663
    volume of vector 3,4 3,05 3,35 2,56 2,74 3,13
    volume of insert4,6 4,954,655,445,264,87


    Transformation:
    Was performed according to standard protocol using BL21 cells.

    137. labday 02.10.2010

    Mini Prep and test digestion of pGa14_MiddleLinker_VP2/3_HSPG-KO

    Investigator: Hanna
    Comment: In order to fuse the DARPin to the N-terminus of VP2/3_insCap and VP2/3_HSPG-KO, these motifs need to be fused to the Middle Linker (performed on 30.9.2010). In order to be able to immediately continue with cloning, BL21 cells were transformed and clones were picked in the noon. Now, the DNA needs to be preped and test digested in order to perform a 3-fragment-ligation with the DARPin and the pSB1C3_001_CMV plasmid. Unfortunately the cells of the VP2/3_insCap construct grew not densely enough. Therefore two new clones were picked from the plate and were inoculated in 10 mL LB medium. The other construct (pGa14_MiddleLinker_VP2/3_HSPG-KO) was preped and test digested.

    TEST DIGESTION: For both clones:

    • DNA: 4 µL
    • Buffer 4: 1 µL
    • BSA: 1 µL
    • EcoRI: 0.5 µL
    • PstI: 0.5 µL
    • H2O: 3 µL


    Incubation: 1 hour.
    Agarose gel: 0.8 %, 115 Volt, 1 hour.
    Comment: The choice of these restriction enzymes was not clever, because if cloning didn't work, I expect one band at 2379 bp (the insert should hardly be seen) - if it worked one band at 2379 bp and a second at 2005 bp. Fortunately the bands could be separated ans revealed positive results for both clones :
    Freiburg10 2 10 TestD.png

    Next steps:

    • Mini-Prep and test digestion of pGa14_MiddleLinker_VP2/3_ins Cap.
    • 3 fragment ligation of MiddleLinker_VP2/3_ins Cap or MiddleLinker_VP2/3_HSPG-KO + DARPin + pSB1C3_001_CMV backbone.