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Yeast One-Hybrid Service

Yeast One-Hybrid Service

Yeast one-hybrid technology is a tool for studying nucleic acid-protein interaction based on yeast two-hybrid technology. It is widely used to study gene expression regulation in eukaryotic cells, such as identifying DNA binding sites, finding potential binding protein genes, analyzing DNA binding domain information, etc.

Creative BioMart has rich experience in yeast library construction and library screening, which can help customers analyze and solve various problems encountered during experiments.

Technology Description

Yeast one-hybrid (Y1H) assays Figure 1. Yeast one-hybrid (Y1H) assays (Sewell, 2018)

The experimental process of yeast one-hybrid is simple and time-saving. It can directly identify and find out the protein and its coding sequence combined with the specific acting element, without the tedious biochemical means such as preparation and purification of protein or antibody to establish this interactive relationship.

In addition, yeast belongs to prokaryote, so the research in yeast is closer to the real situation of eukaryotic gene expression regulation, and the protein is in natural conformation, which avoids the lack of in vitro research.

Service Content

Outline of variations and considerations in Y1H assays Figure 2. Outline of variations and considerations in Y1H assays (Sewell, 2018)

We provide library construction and library screening services:

Service project Customers provide Deliverables
Library construction Tissues/Cells Liquid of yeast library (titrated higher than 1 x 108
Pictures of PCR identification results of library (with minimum 80% positive rate)
Library screening Promoter gene sequence / plasmid All original pictures in the screening process;
Screening and sequencing results of all interacting prey proteins

Workflow of Library Construction and Screening Services

Library construction

  • Receive orders and samples
  • Extract total RNA
  • mRNA purification and reverse transcription
  • Synthesis and purification of double-stranded cDNA
  • Co-transformation to competent yeast cells
  • Determination of conversion rate
  • Determine library potency
  • Deliver results

Library screening

  • Receive samples
  • Bait vector and bait strain construction
  • Self-activation detection
  • Clone count calculation
  • Identification of positive clone strains
  • Deliver results

The results of the yeast one-hybrid experiment can be further verified:

Service project Objective Details Timeline (weeks)
EMSA Verify the interaction between promoter and protein Probe synthesis and labeling 10
EMSA test 20
Double luciferase detection Verify the interaction between promoter and protein Vector construction 10-15
Double luciferase detection 25

Technology Application

  • Determine if there is a known DNA protein interaction.
  • Isolation of novel genes that bind to target cis regulatory elements or other short DNA binding site proteins.
  • Localize the DNA binding domain of DNA binding proteins that have been proved to interact with each other.

With our professional research and development team and the latest protein expression and purification resources, we promise to deliver high-quality products for our customers. Customers who need our assistance are more than welcome to contact us or submit an online inquiry. Our professional team will provide you with detailed guidance and solution ASAP.

Reference

1. Sewell JA, Fuxman Bass JI. Options and Considerations When Using a Yeast One-Hybrid System. Methods Mol Biol. 2018;1794:119-130.

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