Anti-TOP3B

Custom conjugation services for this antibody as available (eg. labeling of Anti-TOP3B with HRP. Available labels are AF: AF350, AF488, AF555, AF594, AF647, AF680, AF700, AF750. Proteins: HRP, Alkaline Phosphatase, Streptavidin. Tandems: APC, APC/Cy7, APC/AF750, APC/iFluor(TM) 700, APC/iFluor(TM) 750, PE, PE/Cy5, PE/Cy7, PE/AF610, PE/AF700, PE/iFluor(TM) 594, PE/iFluor(TM) 647, PE/iFluor(TM) 700, PE/iFluor(TM) 750, PE/Texas Red(R), PerCP, PerCP/Cy5.5. Small Molecules: Biotin. Traditional Dyes: FITC (Fluorescein), TRITC (Rhodamine), PacBlue, PacOrange, Cy3, Cy5. iFluor: 350, 405, 430, 450, 488, 514, 532, 546, 555, 560, 568, 594, 610, 633, 647, 660, 670, 680, 700, 710, 750, 790, 800, 810, 820, 840, 860, A7. mFluor: UV375, UV460, Violet 450, Violet 500, Violet 510, Violet 540, Blue 570, Green 620, Red 700, Red 780. Protein 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-(5'-phosphotyrosyl)- enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand than undergoes passage around the unbroken strand thus removing DNA supercoils. Finally, in the religation step, the DNA 3'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone. Possesses negatively supercoiled DNA relaxing activity. [The UniProt Consortium]