catalog number :
MBS9604527
products full name :
TOP3B Antibody
products short name :
[TOP3B]
products name syn :
[DNA topoisomerase 3 beta 1; DNA topoisomerase 3-beta-1; DNA topoisomerase III beta 1; DNA topoisomerase III beta-1; FLJ39376; TOP 3B; TOP3B; TOP3B_HUMAN; TOP3B1; Topo III beta; Topoisomerase (DNA) III beta; Topoisomerase DNA III beta; Topoisomerase III beta]
other names :
[DNA topoisomerase 3-beta-1 isoform 1; DNA topoisomerase 3-beta-1; DNA topoisomerase 3-beta-1; DNA topoisomerase III beta; DNA topoisomerase III beta-1]
products gene name :
[TOP3B]
other gene names :
[TOP3B; TOP3B; TOP3B1; TOP3B1]
reactivity :
Human, Mouse
specificity :
TOP3B antibody detects endogenous levels of total TOP3B
purity :
The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin.
form :
Phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
storage stability :
Store at -20 degree C. Stable for 12 months from date of receipt.
tested application :
Western Blot (WB), Immunofluorescence (IF), Immunocytochemistry (ICC), ELISA (EIA)
app notes :
WB: 1:500-1:1000. IF/ICC: 1:100-1:500. IMPORTANT: For western blot, incubate membrane with diluted primary Ab in 5% w/v milk , 1X TBS, 0.1% Tween 20 at 4°C with gentle shaking, overnight.
image1 heading :
Immunofluorescence (IF)
image2 heading :
Western Blot (WB)
other info1 :
Immunogen: A synthesized peptide derived from human TOP3B, corresponding to a region within C-terminal amino acids.
products description :
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 (By similarity). Possesses negatively supercoiled DNA relaxing activity. Similarity: Belongs to the type IA topoisomerase family.
ncbi acc num :
NP_001269041.1
ncbi gb acc num :
NM_001282112.1
ncbi pathways :
Bloom's Syndrome Complex Pathway (413477); Bloom's Syndrome Complex Pathway (890629); Fanconi Anemia Pathway (377262); Fanconi Anemia Pathway (377128); Homologous Recombination Pathway (83046); Homologous Recombination Pathway (454)
ncbi summary :
This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus relaxing the supercoils and altering the topology of DNA. The enzyme interacts with DNA helicase SGS1 and plays a role in DNA recombination, cellular aging and maintenance of genome stability. Low expression of this gene may be related to higher survival rates in breast cancer patients. This gene has a pseudogene on chromosome 22. Alternate splicing results in multiple transcript variants. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Aug 2013]
uniprot summary :
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.