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Recombinant D. melanogaster DNA topoisomerase 1(Top1), partial

  • Catalog Number:  CDRPO-3110923
  • Size:   20 μg; 100 μg; 1000 μg

Target Information

Species

Drosophila melanogaster

Target Names

Top1

Alternative Names

Top1; CG6146; DNA topoisomerase 1; EC 5.6.2.1; DNA topoisomerase I

Subcellular Location

Nucleus. Cytoplasm.

Protein Families

Type IB topoisomerase family

Function

Releases the supercoiling and torsional tension of DNA introduced during the DNA replication and transcription by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(3'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 5'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand thus removing DNA supercoils. Finally, in the religation step, the DNA 5'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone.

Database Info

KEGG: Dmel_CG6146; STRING: 7227.FBpp0073822; UniGene: Dm.2912

Product Details

Product Type

Recombinant Protein

Source

Yeast; E. coli; Baculovirus; Mammalian cell

Protein Length

Partial

Purity

>85% (SDS-PAGE)

Tag Info

The following tags are available. N-terminal His-tagged Tag-Free

Form

Lyophilized powder

Buffer before Lyophilization

Tris/PBS-based buffer, 6% Trehalose, pH 8.0

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Lead Time

Delivery time may differ from different purchasing ways or locations, please kindly consult us for specific delivery times.

Storage & Handling

Storage Condition

Store at -20 °C/-80 °C upon receipt, aliquoting is necessary for multiple use.

Shelf Life

The shelf life is related to many factors, including storage state, buffer ingredients, storage temperature, and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C.

Handling

Repeated freezing and thawing are not recommended.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Store working aliquots at 4 °C for up to one week.

For research use only. Not intended for any clinical use.