All Photos(1)



Yeast Transformation Kit

reagents for introducing plasmid DNA into yeast


Quality Level


for molecular biology


 kit sufficient for >100 standard transformations

shipped in

dry ice

storage temp.


General description

Sigma′s Yeast Transformation Kit contains all necessary reagents and controls for efficient transformation of yeast by the lithium acetate method.


Suitable for transformation of any strain of yeast. Convenient, flexible and sensitive, positive transformants can be obtained with as little as 10 ng of DNA; the optimum efficiency is in the 0.1- 3 μg range.

Features and Benefits

  • Easy and ready-to-use
  • Requires as little as 10 ng of plasmid DNA
  • Flexibility for any strain of yeast
  • Sufficient for over 100 standard transformations


The Yeast Transformation Kit contains:
  • Transformation Buffer; 100 ml; 100 mM lithium acetate, 10 mM Tris HCl, pH 7.6, and 1 mM EDTA
  • Plate Buffer; 100 ml; 40% PEG, 100 mM lithium acetate, 10 mM Tris HCl, pH 7.5, 1 mM EDTA
  • Deoxyribonucleic acid from salmon teste, 10 mg/ml; 2 x 1 ml
  • Control Yeast Plasmid DNA pRS316 carrying the ura gene; 10 μg
  • Yeast Synthetic Drop-out Medium Supplement Without Uracil; 1 g


Transformation with a plasmid complementing the mutated gene enables the transformant to grow on medium lacking the required component. Yeast cells are made competent for transformation by incubation in a buffered lithium acetate solution. Transformation is then carried out by incubating the cells together with transforming DNA and carrier DNA in a solution containing polyethylene glycol (PEG).

Kit Components Also Available Separately

Product No.

  • D9156Deoxyribonucleic acid, single stranded from salmon testes, For hybridization 2 x 1

  • Y1501Yeast Synthetic Drop-out Medium Supplements, without uracil 1 g


Health hazard

Signal Word


Hazard Statements

Precautionary Statements

Hazard Classifications

STOT RE 2 Inhalation

Target Organs

Respiratory Tract

Storage Class Code

10 - Combustible liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

Quotes and Ordering

S Camarero et al.
Applied and environmental microbiology, 78(5), 1370-1384 (2012-01-03)
While the Pycnoporus cinnabarinus laccase (PcL) is one of the most promising high-redox-potential enzymes for environmental biocatalysis, its practical use has to date remained limited due to the lack of directed evolution platforms with which to improve its features. Here
James R Petrie et al.
PloS one, 7(4), e35214-e35214 (2012-04-24)
Monoacylglycerol acyltransferases (MGATs) are predominantly associated with lipid absorption and resynthesis in the animal intestine where they catalyse the first step in the monoacylglycerol (MAG) pathway by acylating MAG to form diacylglycerol (DAG). Typical plant triacylglycerol (TAG) biosynthesis routes such
Christoph Sygmund et al.
Microbial cell factories, 12, 38-38 (2013-04-27)
The ability of fungal cellobiose dehydrogenase (CDH) to generate H2O2 in-situ is highly interesting for biotechnological applications like cotton bleaching, laundry detergents or antimicrobial functionalization of medical devices. CDH's ability to directly use polysaccharide derived mono- and oligosaccharides as substrates
A two-hybrid screen identifies an unconventional role for the intermediate filament peripherin in regulating the subcellular distribution of the SNAP25-interacting protein, SIP30.
Gentil BJ
Journal of Neurochemistry, 131(5), 588-601 (2014)
Francesco Palma et al.
FEMS microbiology letters, 272(1), 114-119 (2007-06-22)
The TBF-1 is an 11.9-kDa fruiting body specific protein of the Ascomycetes hypogeous fungus Tuber borchii Vittad. found in aqueous extract and the hyphal cell wall. The tbf-1 gene codes a 12-amino acid N-terminal stretch not present in mature protein.


Introduction to Yeast Transformation

Transformation is the process by which exogenous DNA is introduced into a cell, resulting in a heritable change or genetic modification. This was first reported in Streptococcus pneumoniae by Griffith in 1928. Transforming principle of DNA was demonstrated by Avery et al. in 1944.

Protein Expression Systems

The development of genetic engineering and cloning has opened many possibilities of expression and isolation of heterologous proteins for research purposes. Considerable advances in technology have enabled expression and isolation of recombinant proteins in large scale.


Yeast Transformation Kit

The selection of plasmids in yeast is based on the use of auxotrophic mutant strains, which cannot grow without a specific medium component (an amino acid, purine, or pyrimidine)

Yeast Transformation Protocols

Yeasts are considered model systems for eukaryotic studies as they exhibit fast growth and have dispersed cells.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service