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Addgene

4G-Cloning Plasmid Kit
(Kit # 1000000252 )

Depositing Lab:   Stephan Gruber

The 4G (Golden-Gate-guided Gibson) cloning kit provides vectors containing elements (promoters, terminators, tags, etc.) for rapid assembly of expression vectors for multi-subunit protein complexes in various expression hosts. Expression cassettes for individual subunits are first assembled by Golden Gate cloning, and then directly combined by Gibson Assembly into acceptor vectors for the desired host.

This kit will be sent as bacterial glycerol stocks in 96-well plate format.

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$400 USD + shipping
Available to academics and nonprofits only.

Original Publication

4G cloning: rapid gene assembly for expression of multisubunit protein complexes in diverse hosts. Taschner M, Dickinson JB, Roisné-Hamelin F, Gruber S. Life Sci Alliance. 2024 Dec 2;8(1):e202402899. doi: 10.26508/lsa.202402899. PubMed (Link opens in a new window) Article (Link opens in a new window)

Description

Recombinant expression and purification of multi-subunit protein complexes often requires co-expression of several subunits in the same host cell. The production of expression vectors for such assemblies is a time-consuming process, especially if several versions (e.g. with different affinity tags or tag combinations) need to be screened. The ‘4G’ (Golden-Gate-guided Gibson) cloning kit streamlines this process by providing essential ‘elements’ of expression cassettes (collections of promoters, terminators, tags, and Gibson homology sequences).

Users generate vectors containing the ‘ORF’ elements (the coding sequences of each subunit), and can then directly produce expression cassettes by Golden Gate cloning using the Type IIS restriction enzyme BsaI. The Gibson homology sequences added to the ends of individual cassettes allow for their direct insertion into dedicated acceptor vectors used for protein expression. This streamlined process enables rapid, parallel production of multiple vector variants (e.g. for tag screening) within a single day.

The kit provides acceptor vectors for protein expression in bacteria (E. coli), but the system can also be used for eukaryotic hosts (insect or mammalian cells) together with vectors from the biGBac kit (Addgene #1000000088).

Figure summarizes the workflow to produce a multi-gene vector with the 4G cloning kit. At the top, two panels show a library with elements available in this kit which include 5' sequences, promoters, N-tags, C-tags, terminators and 3' sequences; and a library of ORFs created by the user. In both cases, elements and ORFs are carried in the pD backbone which contains chloramphenicol resistance, and are flanked by BsaI sites. Arrows to three different microcentrifuge tubes symbolize the selection of elements and ORFs, and the Golden-Gate assembly reaction to create three different linear gene expression cassettes, which takes four to five hours. Another arrow represents the mixing of these gene expression cassettes and a linearized acceptor into a new microcentrifuge tube. A ligation map shows acceptor and expression cassettes that have compatible sticky ends. A side panel identifies pMulti as the bacterial expression acceptor vector, and pBig from the BigBac kit as the eukaryotic expression acceptor vector. Both contain an ori and a marker element, and are linearized through a SwaI digest. Finally, a last arrow represents the ligation of the three gene expression cassettes and the linear acceptor vector through a Gibson assembly, which takes thirty minutes, and the transformation into competent cells, which takes one hour, to form a multi-gene expression vector containing the three gene expression cassettes, and the ori and marker elements.
  • Figure 1: Overview of the “Golden Gate–guided Gibson” (4G cloning) procedure. In the first step, individual linear gene expression cassettes (GECs) are assembled from individual smaller elements by Golden Gate cloning. These elements are excised from individual circular donor vectors (“pD”; see generic representation next to the element library box), giving specific sticky ends depending on the element type (numbers in white circles). Multiple GECs with compatible homology ends from such reactions are then directly inserted into dedicated linearized acceptor vectors by Gibson assembly without further isolation/purification. As a result, a multi-GEC expression plasmid can be created in a single day from prepared donors. Image reused from Taschner et al. 2024, under Creative Commons Attribution License (Link opens in a new window).

How to Cite this Kit

These plasmids were created by your colleagues. Please acknowledge the Principal Investigator, cite the article in which they were created, and include Addgene in the Materials and Methods of your future publications.

For your Materials and Methods section:

"The 4G-Cloning Plasmid Kit was a gift from Stephan Gruber (Addgene kit #1000000252)."

For your Reference section:

4G cloning: rapid gene assembly for expression of multisubunit protein complexes in diverse hosts. Taschner M, Dickinson JB, Roisné-Hamelin F, Gruber S. Life Sci Alliance. 2024 Dec 2;8(1):e202402899. doi: 10.26508/lsa.202402899. PubMed (Link opens in a new window) Article (Link opens in a new window)

4G-Cloning Plasmid Kit - #1000000252

Resistance Color Key

Each circle corresponds to a specific antibiotic resistance in the kit plate map wells.

Inventory

Searchable and sortable table of all plasmids in kit. The Well column lists the plasmid well location in its plate. The Plasmid column links to a plasmid's individual web page.

Kit Plate Map

96-well plate map for plasmid layout. Hovering over a well reveals the plasmid name, while clicking on a well opens the plasmid page.

Resistance Color Key

Chloramphenicol
Ampicillin
Kanamycin
Streptomycin

Inventory

Well Plasmid Resistance
A / 1 pD(P+T)_T7
Chloramphenicol
A / 2 pD(P+T)_T7N
Chloramphenicol
A / 3 pD(P+T)_T7C
Chloramphenicol
A / 4 pD(P+T)_ph
Chloramphenicol
A / 5 pD(P+T)_phN
Chloramphenicol
A / 6 pD(P+T)_phC
Chloramphenicol
A / 7 pD(P+T)_CMV
Chloramphenicol
A / 8 pD(P+T)_CMVN
Chloramphenicol
A / 9 pD(P+T)_CMVC
Chloramphenicol
A / 10 pD(Gib)_5'alpha
Chloramphenicol
A / 11 pD(Gib)_5'beta
Chloramphenicol
A / 12 pD(Gib)_5'gamma
Chloramphenicol
B / 1 pD(Gib)_5'delta
Chloramphenicol
B / 2 pD(Gib)_3'beta
Chloramphenicol
B / 3 pD(Gib)_3'gamma
Chloramphenicol
B / 4 pD(Gib)_3'delta
Chloramphenicol
B / 5 pD(Gib)_3'omega
Chloramphenicol
B / 6 pD(Nt)_His6
Chloramphenicol
B / 7 pD(Nt)_His6-TEV
Chloramphenicol
B / 8 pD(Nt)_His6-3C
Chloramphenicol
B / 9 pD(Nt)_His6-FLAG3
Chloramphenicol
B / 10 pD(Nt)_His6-FLAG3-TEV
Chloramphenicol
B / 11 pD(Nt)_His6-HA2-TEV
Chloramphenicol
B / 12 pD(Nt)_His6-MBP-TEV
Chloramphenicol
C / 1 pD(Nt)_His6-GST-TEV
Chloramphenicol
C / 2 pD(Nt)_His6-SUMO
Chloramphenicol
C / 3 pD(Nt)_GFP
Chloramphenicol
C / 4 pD(Nt)_GFP-TEV
Chloramphenicol
C / 5 pD(Nt)_GFP-3C
Chloramphenicol
C / 6 pD(Nt)_TS-3C
Chloramphenicol
C / 7 pD(Nt)_His10-TS-3C
Chloramphenicol
C / 8 pD(Nt)_HALO
Chloramphenicol
C / 9 pD(Ct)_His8
Chloramphenicol
C / 10 pD(Ct)_3C-His8
Chloramphenicol
C / 11 pD(Ct)_3C-GFP
Chloramphenicol
C / 12 pD(Ct)_3C-Venus-His8
Chloramphenicol
D / 1 pD(Ct)_CPD-His10
Chloramphenicol
D / 2 pD(Ct)_TS
Chloramphenicol
D / 3 pD(Ct)_3C-TS
Chloramphenicol
D / 4 pD(Ct)_3C-TS-His10
Chloramphenicol
D / 5 pD(Ct)_Avi-3C-TS
Chloramphenicol
D / 6 pD(Ct)_FLAG
Chloramphenicol
D / 7 pD(Ct)_FLAG3
Chloramphenicol
D / 8 pD(Ct)_MYC9
Chloramphenicol
D / 9 pD(Ct)_PK6
Chloramphenicol
D / 10 pD(Ct)_HALO
Chloramphenicol
D / 11 pMulti_A_ccdB
Ampicillin
D / 12 pMulti_K_ccdB
Kanamycin
E / 1 pMulti_S_ccdB
Streptomycin
Data calculated @ 2025-02-08

Kit Plate Map - #1000000252

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