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Human Topoisomerase I Wild Type from Calbiochem

ProductsHuman Topoisomerase I Wild Type from Calbiochem
Company Calbiochem
Item Human Topoisomerase I Wild Type
Price $436.00
Description 

Topo I, Wild Type

Liquid. In 100 mM KCl, 20 mM Tris-HCl, 1 mM DTT, 200 µM EDTA, 20% glycerol, pH 7.9. AVOID FREEZE/THAW CYCLES. Human DNA topoisomerase I (Topo I) is a monomeric protein of 765 amino acids encoded by a single-copy gene. It catalyzes the relaxation of both positive and negative supercoiled DNAs without the requirement of energy. In addition to DNA replication and transcriptional activation, DNA topoisomerase I also plays a major role in pre-mRNA splicing, cell cycle and other gene regulatory pathways during cell growth and development. Since Topo I can cause large amounts of single-strand DNA breaks it is an important target for antitumor agents. One unit= 1 ng protein. Specific activity: 1 unit/ng protein. 0.1-1 unit (ng) is sufficient for relaxing 0.5 µg of pBR322 supercoiled DNA in a 20 µl reaction. Purity: ≥95% by SDS-PAGE . M.W. 85,000.

Info CalbiochemCalbiochem
Calbiochem, A Brand of EMD Biosciences, Inc.
10394 Pacific Center Court
San Diego, CA 92121
USA

Customer Service:
(800) 854-3417
(858) 450 9600

Tech Support: 800-628-8470
Fax Number:
(800) 776-0999
(858) 453 3552

Web Site: http://www.calbiochem.com
NOTE: Price information is approximate list price and actual prices may vary.

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