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Tris-EDTA buffer solution

100X concentrate for Northern and Southern blotting

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Tris-EDTA wash buffer, TE buffer solution
MDL number:
PubChem Substance ID:


for molecular biology

Quality Level


0.2 μm filtered




7.8-8.2 (1 × in water)


sample preparation

foreign activity

DNase, RNase, none detected

storage temp.

room temp

SMILES string




InChI key


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General description

Tris EDTA buffer is commonly used in molecular biology for reconstitution and storage of many precipitated biomolecules, including DNA and RNA. Tris-HCl is a commonly used buffer and EDTA is a metal chelating agent. TE buffer solubilizes nucleic acids while protecting the molecules from degradation. It is used in nucleic acid isolation, which may be done prior to nucleic acid gel electrophoresis and Northern or Southern blot hybridization.


TE buffer has been used for:
  • isolate, resuspend, or store DNA and RNA for PCR or qPCR
  • gel electrophoresis, including Northern and Southern blotting
  • bacterial cells, for AmpC disk test, to measure β-lactamases released from the cells
  • antigen retrieval for immunohistochemistry


TE Buffer contains 1M Tris-HCl (pH approximately 8.0), containing 0.1M EDTA.

Other Notes

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Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Jennifer A Black et al.
Journal of clinical microbiology, 43(7), 3110-3113 (2005-07-08)
Although plasmid-mediated AmpC beta-lactamases were first reported in the late 1980s, many infectious disease personnel remain unaware of their clinical importance. These enzymes are typically produced by isolates of Escherichia coli, Klebsiella spp., Proteus mirabilis, and Salmonella spp. and are
Virtual Fluorescence Color Channels by Selective Photobleaching in Digital PCR Applied to the Quantification of KRAS Point Mutations
Schlenker F et al.
Analytical Chemistry, 93, 10538-10545 (2021)
AmpC disk test for detection of plasmid-mediated AmpC beta-lactamases in Enterobacteriaceae lacking chromosomal AmpC beta-lactamases.
Black JA, et al.
Journal of Clinical Microbiology, 43, 3110-3113 (2005)
Kashif Asghar et al.
Experimental and therapeutic medicine, 9(3), 901-904 (2015-02-11)
Indoleamine 2,3-dioxygenase (IDO) is an immunoregulatory enzyme. It plays a key role in various malignancies, infection and autoimmune diseases. IDO induces immunosuppression through the depletion of tryptophan and its downstream metabolites. Hepatitis C virus (HCV) has infected more than 12
Shiraz Tyebji et al.
Cell reports, 31(4), 107573-107573 (2020-04-30)
Germline epigenetic factors influence transgenerational inheritance of behavioral traits upon changes in experience and environment. Immune activation due to infection can also modulate brain function, but whether this experience can be passed down to offspring remains unknown. Here, we show

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