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TOPO I (C651-765) (C TERMINAL DOMAIN) HUMAN

Catalog No.
C005B-306467
Mfr. No.
SRP2032-5UG
Mfr. Name
Sigma-Aldrich
Qty/UOM
1
UOM
EA
Price: $1,077.75
List Price: $1,197.51

Biochem/physiol Actions Human DNA topoisomerase I catalyzes the relaxation of both positive and negative supercoils without the requirement of energy. In addition to DNA replication and transcriptional activation, DNA topoisomerase I also plays a

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Biochem/physiol Actions

Human DNA topoisomerase I catalyzes the relaxation of both positive and negative supercoils 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, recombination, chromatin remodeling and other DNA or RNA templating activities. The C terminal domain of DNA topoisomerase I spanning from amino acids 713 to 765 is highly conserved and connected to the core domain by a poorly conserved linker domain (residues 636-713). An active site tyrosine has been characterized at position 723. Mutation of this tyrosine to phenylalanine at position 723 causes topo I to preferentially bind the supercoiled DNA rather than relaxed DNA in the mixture of supercoiled and relaxed DNA.

Physical form

Clear and colorless frozen liquid solution

Preparation Note

Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.

Shipping Information:

Dry Ice Surcharge & Ice Pack Shipments: $40

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UPC:
51263311
Condition:
New
Availability:
3-5 Days
Weight:
1.00 Ounces
HazmatClass:
No
MPN:
SRP2032-5UG
Temperature Control Device:
Yes

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