TOP1 Polyclonal Antibody

TOP1 Polyclonal Antibody

• DataSheet
• Material Safety Data Sheets (MSDS)

Polyclonal antibody to TOP1

WB, IF

Human

TOP1 antibody; TOPI antibody; DNA topoisomerase 1 antibody

Rabbit IgG

Antigen: A synthetic peptide of human TOP1

Polyclonal

PBS with 0.02% sodium azide, pH7.3.

Store at 4℃. Avoid freeze / thaw cycles.

WB 1:500 - 1:2000
IF 1:20 - 1:50

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 rotates around the intact phosphodiester bond on the opposing 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 (By similarity). Regulates the alternative splicing of tissue factor (F3) pre-mRNA in endothelial cells. Involved in the circadian transcription of the core circadian clock component ARNTL/BMAL1 by altering the chromatin structure around the ROR response elements (ROREs) on the ARNTL/BMAL1 promoter.