Millipore Sigma Vibrant Logo

AB3245-I Anti-TopBP1

Anti-TopBP1 Antibody, Cat. No. AB3245-I, is a highly specific rabbit polyclonal antibody that targets DNA topoisomerase 2-binding protein 1 (TopBP1) and has been tested in Immunoprecipitation and Western Blotting.

Anti-TopBP1 MSDS (material safety data sheet) or SDS, CoA and CoQ, dossiers, brochures and other available documents.
Research Category: Epigenetics & Nuclear Function Gene Symbol: TOPBP1, KIAA0259 UniProt Number: Q92547
View Products on Sigmaaldrich.com
AB3245-I
100 μg  
Retrieving price...
Price could not be retrieved
Minimum Quantity is a multiple of
Maximum Quantity is
Upon Order Completion More Information
You Saved ()
 
—
Request Pricing
—
Limited Availability Limited Availability
Stocked 
Discontinued
Limited Quantities Available
Available
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      Special Offers

       

      Contact Customer Service

      Overview

      Replacement Information

      Special Offers

      100% Performance Guaranteed

      Key Specifications Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      HWBRbAffinity PurifiedPolyclonal Antibody
      Description
      Catalogue NumberAB3245-I
      DescriptionAnti-TopBP1
      Alternate Names
      • DNA topoisomerase 2-binding protein 1
      • DNA topoisomerase II-beta-binding protein 1
      • DNA topoisomerase II-binding protein 1
      • TopBP1
      Background InformationDNA topoisomerase 2-binding protein 1 (UniProt Q92547; also known as DNA topoisomerase II-beta-binding protein 1, DNA topoisomerase II-binding protein 1, TopBP1) is encoded by the TOPBP1 (also known as KIAA0259) gene (Gene ID 11073) in human. Timely DNA replication and accurate chromosome segregation is critical for maintaining genome integrity to avoid cancer and other genetic diseases. TopBP1 plays an important role in mediating DNA processing during mitosis to reduce transmission of DNA damage toG1 daughter cells. Unlike the translesion synthesis scaffold factor Rev1 or K164-ubiquitylated PCNA that serve to recruit translesion polymerases to stalled forks, TopBP1 forms foci upon mitotic entry, marking sites of and promoting unscheduled DNA synthesis at underreplicated regions independent of Rev1 and PCNA. Persistent TopBP1 foci transition into 53BP1 nuclear bodies (NBs) in G1 and precise temporal depletion of TopBP1 just before mitotic entry induces formation of 53BP1 NBs in the next cell cycle. Human TopBP1 contains eight BRCA1 C Terminus (BRCT) domains (a.a. 101-189, 195-284, 354-444, 548-633, 641-738, 900-991, 1259-1351, 1389-1486) and two nuclear localization signal (NLS) motifs (a.a. 852-858, 1517-1520). TopBP1 BRCT1/2-mediated interaction with phosphorylated Rad9 is essential for TopBP1-dependent ATR (ataxia telangiectasia and Rad3-related) activation, while TopBP1 BRCT6 interacts with the phosphorylated transcription factor, E2F1 to repress E2F1 activity in response to DNA damage. BRCT6 is also targeted for poly(ADP-ribosyl)ation by poly(ADP-ribose) polymerase 1 (PARP-1). The innate immune regulator STAT-5 is activated by human papillomavirus (HPV) proteins in HIV-infected cells, resulting in upregulated TopBP1 transcription and ATR pathway activation required for HPV genome amplification.
      References
      Product Information
      FormatAffinity Purified
      PresentationPurified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide
      Quality LevelMQ100
      Applications
      ApplicationAnti-TopBP1 Antibody, Cat. No. AB3245-I, is a highly specific rabbit polyclonal antibody that targets DNA topoisomerase 2-binding protein 1 (TopBP1) and has been tested in Immunoprecipitation and Western Blotting.
      Key Applications
      • Western Blotting
      Application NotesImmunoprecipitation Analysis: 10 µg from a representative lot immunoprecipitated TopBP1 from 500 µg of HeLa cell lysate.
      Biological Information
      ImmunogenKLH-conjugated linear peptide corresponding to a squence within the region between BRCT domain 6 and 7 of human TopBP1.
      ConcentrationPlease refer to lot specific datasheet.
      HostRabbit
      SpecificityThis rabbit polyclonal antibody targets human TopBP1 region between the sixth and seventh BRCA1 C-terminus (BRCT) domain.
      Species Reactivity
      • Human
      Antibody TypePolyclonal Antibody
      Entrez Gene Number
      Gene Symbol
      • TOPBP1
      • KIAA0259
      Purification MethodAffinity purified.
      UniProt Number
      Molecular Weight~180 kDa observed. 170.7 kDa calculated. Uncharacterized bands may be observed in some lysate(s).
      Physicochemical Information
      Dimensions
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blotting in HeLa cell lysate.

      Western Blotting Analysis: 2 µg/mL of this antibody detected TopBP1 in 10 µg of HeLa cell lysate.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
      Packaging Information
      Material Size100 μg
      Transport Information
      Supplemental Information
      Specifications
      Global Trade Item Number
      Catalog Number GTIN
      AB3245-I 04054839057168