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R1753 Sigma

Ribonucleic acid, transfer from Escherichia coli

Type XX, Strain W, lyophilized powder

Synonym: Transfer RNA, tRNA



Related Categories Biochemicals and Reagents, Nucleosides, Nucleotides, Oligonucleotides, Oligonucleotides, DNA, and RNA More...
type   Type XX
form   lyophilized powder
storage temp.   −20°C


Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Analysis Note

Each lot is evaluated for its amino acid acceptor activity using aminoacyl-tRNA synthetase and a mixture of amino acids Ala, Asp, Gly, Ile, Lys, Pro, Thr, Val, Arg, Glu, His, Leu, Phe, Ser, and Tyr.


100 units in glass bottle

500, 2000, 10000 units in poly bottle

Unit Definition

One unit will yield an A260 of 1.0 in 1.0 mL of water (1 cm light path).


Ribonucleic acid, transfer from Escherichia coli, Type XX, Strain W may be used as a starting material for the purification of specific amino acyl-tRNA species by methods such as liquid column chromatography or high-performance liquid chromatography (HPLC).

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
How many mgs of tRNA, Product R1753, come in the 100UN, 500UN, 2KU and 10KU package sizes?
The amount of powder will vary between lots depending on the activity.  For example, a Certificate of Analysis of a lot may say 18 A260 units/mg solid.  This means that the 100UN package will contain approxomately 5.56 mg of solid.
Can Product R1753, tRNA, be used in molecular biology applications?
This product has not been tested for Dnase or RNase activity. Product Nos. R5636 and R8508 are from baker's yeast; they have been tested for DNase and Nickase.
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles
Peer-Reviewed Papers


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Add to Cart

92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

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