Presentation is loading. Please wait.

Presentation is loading. Please wait.

Gateway cloning system

Similar presentations


Presentation on theme: "Gateway cloning system"— Presentation transcript:

1 Gateway cloning system
BP Reaction LR Reaction

2

3 Why Gateway No restriction enzymes needed Fast High efficiency
Multiple destination vectors Site-directed mutagenesis (Empty donor vector is very small ~2.3kb)

4 1. Design the primers attB1(Foward): GGGGACAAGTTTGTACAAAAAAGCAGGCTTC
attB2(Reverse) GGGGACCACTTTGTACAAGAAAGCTGGGTC

5 2. BP reaction PCR product need to be recovered from gel. Important!
PCR product ul pDONR/Zeo ul BP clonase ul O/N at R/T LB+Zeocin (Half salt)

6 3. Sequencing PCR product+donor vector=Entry clone
Pick 1-2 colonies (no colony PCR needed) M13f and M13r are used to sequence cloned fragment

7 4. LR Reaction Entry clone 1ul Destination vector 1ul
LR clonase ul TE buffer/H2O ul 1 hour at R/T

8 5. Destination clones Bacterial selection=destination vector
After plasmid isolation, run a gel. Sometimes entry vector will be co-transformed. Make sure there is no bright band of entry vector. Colony PCR if necessary.

9 Gateway compatible destination vector construction
Insert Gateway cassette in to target Vector. Three cassettes with corresponding three different reading frames. Decide which one you need. Consider N-/C-terminal fusion. Blunt ligation. You need check the cassette orientation. Bacterial selection: chloramphenicol+X You can only use ccdB survival strains.

10 Currently available destination vectors
pBASTA-35S-GFP-GW pBASTA-35S-FLAG-GW pHYG-35S-GFP-GW pTA7002-GW pBASTA-GUS-GW pGTB9BS-GW (New) pGAD GH-GW (New) pGEMHE-GW (New) pGEX4T-3-GW

11


Download ppt "Gateway cloning system"

Similar presentations


Ads by Google