Yeast genome-wide protein-protein interaction libraries
This product is a primer product used to confirm the quality of S. cerevisiae VN-Fusion Library by PCR. The mixture of the specific primer for the target gene and the common primer for the VN module can be easily prepared PCR mixture by one pipetting. Bioneer also provides AccuPower® PCR PreMix for PCR as well as primer sets.
※This product is shipped in dry ice.
Analysis of protein interactions and intracellular localization in live cells
Simple observation possible only with a fluorescence microscope
Easy to study the function and interaction of unknown new proteins
Proteinylation analysis possible (ubiquitination, sumoylation, neddylation, etc.)
S. cerevisiae VENUS-fusion library was developed at Seoul National University (VN-fusion Library: Genome Res. 2013. 23:736-746 & VC-fusion Library: Genome Res. 2019. 29:135-145). Bioneer owns their exclusive business license. The VENUS-fusion library consists of S. cerevisiae strains expressing an ORF containing each fragment of VENUS (VN & VC) at the C-terminus. The VN/VC fusion protein was inserted into the yeast chromosome via homologous recombination and expressed using its own promoter. The VN library consists of 5,809 strains and the VC library consists of 5552 strains, covering more than 90% of the S. cerevisiae proteome. .
Bimolecular Fluorescence Complementation (BiFC) Assay
In the bimolecular fluorescence complementation technique (BiFC), a fluorescent protein (VENUS) is divided into N-terminal (VN) and C-terminal (VC) fragments and then attached to each of the two proteins to be interacted with and expressed. After that, when two proteins are far apart, they do not fluoresce, but when the two fragments of VENUS protein are close enough to form an intact flourescence protein complex, which emits fluorescence. The fluorescence signal is measured directly under the fluorescent microscope, making it easy to use when studying protein interactions
Application 1. Analysis of protein and protein interactions and localization in cells
Figure 1. Confirmation of binding of two proteins (Sis1 & Ssa1) known to form homodimers with VN/VC-fusion library
The binding of Sis1 (Type II HSP40 co-chaperone) and Ssa1 (HSP70 protein) in the nucleus and cytoplasm was confirmed by VENUS-complex fluorescence.
