RFA | Baker's yeast replication factor A

Product no: AS07 214

AS07 214  |  Clonality: Polyclonal  |  Host: Rabbit  |  Reactivity: Saccharomyces cerevisiae

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  • Product Info
  • Immunogen:

    RPA from Saccharomyces cerevisiae consisting of three subunits RFA1 (70 kDa), RFA2 (30 kDa) and RFA3 (14 kDa); overexpressed in E.coli and purified by chromatography; no affinity tags were added to any of three subunits

    Host: Rabbit
    Clonality: Polyclonal
    Purity: Serum
    Format: Lyophilized
    Quantity: 50 µl
    Reconstitution: For reconstitution add 50 µl of sterile water
    Storage: Store lyophilized/reconstituted at -20°C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
    Tested applications: Immunoprecipitation (IP), Chromatin Immunoprecipitation (ChIP), Western blot (WB)
    Recommended dilution: ChIP, 1 : 20 000 (WB)
    Expected | apparent MW:

    70 + 30 + 14 kDa

  • Reactivity
  • Confirmed reactivity: Saccharomyces cerevisiae
    Predicted reactivity:

    Saccharomyces cerevisiae

    Not reactive in: No confirmed exceptions from predicted reactivity are currently known
  • Application Examples
  • Application example


    TCA precipitated protein extracts from a wild type yeast strain (S. cerevisiae) were separated on 10% gel and transferred to a PVDF membrane. Antibody was used in different dilutions: 1: 5000 (1); 1: 10 000 (2); 1: 20 000 (3);

    Besides the bands for RFA1 and RFA2 an unspecific band was detected at ~150 kDa.



    Application examples:
    Shi et al. (2023).A R-loop sensing pathway mediates the relocation of transcribed genes to nuclear pore complexes.STAR Protoc. 2023 Sep 20;4(4):102577.doi: 10.1016/j.xpro.2023.102577.

    Reactant: Saccharomyces cerevisiae (Yeast)

    Application: Western Blotting

    Pudmed ID: 27923055

    Journal: PLoS Genet

    Figure Number: 1B

    Published Date: 2016-12-01

    First Author: Syed, S., Desler, C., et al.

    Impact Factor: 5.334

    Open Publication

    SILAC-based quantification of changes in chromatin association in cells lacking Rrm3.(A) Equal numbers of light-labeled (wildtype) and heavy-labeled (rrm3?) cells were mixed, nuclei isolated, and the chromatin fraction extracted and analyzed by tandem mass spectrometry using a hybrid linear ion trap-Orbitrap instrument. (B) Subcellular fractionation was verified by following the distribution of proteins in cytoplasmic (Cyto), nucleoplasm (NP), and chromatin (Ch) fractions during the enrichment procedure by Western blotting. Successful chromatin fractionation is indicated by the enrichment of histone H3 and Rfa and the absence of Adh1. Chromatin fractions were analyzed from three biological replicates in (C) the absence of hydroxyurea and (D) in the presence of hydroxyurea. (E) Merger of peptide quantification in the absence and presence of hydroxyurea.

  • Additional Information
  • Additional information (application):

    Antibody was also successfully used in ChIP application Holstein et al. (2014).

    Load of 1 ng of the protein will allow to visualize two subunits of RPA, while load of 5 ng will allow to visualize all three subunits in Western blot technique.

  • Background
  • Background:

    Saccharomyces cerevisiaereplication protein A (RPA),  also known as replication factor A (RFA) is a single-stranded DNA-binding protein that is required for multiple processes in eukaryotic DNA metabolism. Those processes include DNA replication, DNA repair, and recombination.  Homologues to RPA have been identified in all eukaryotic organisms examined. RPA is heterotrimeric protein composed of subunits of approximately 70, 30, and 14 kDa. Members of this family bind nonspecifically to single-stranded DNA and interact with and/or modify the activities of multiple proteins. Alternative names:  Replication protein A 69 kDa DNA-binding subunit, Single-stranded DNA-binding protein, DNA-binding protein BUF2, replication protein A 36 kDa subunit,    DNA-binding protein BUF1 antibody

  • Product Citations
  • Selected references: Kotenko and Makovets (2024).The functional significance of the RPA- and PCNA-dependent recruitment of Pif1 to DNA. EMBO Rep. 2024 Mar 13. doi: 10.1038/s44319-024-00114-9.  
    Joo et al. (2024).RPA interacts with Rad52 to promote meiotic crossover and noncrossover recombination. Nucleic Acids Res. 2024 Feb 10:gkae083.doi: 10.1093/nar/gkae083.
    Shi et al. (2023).A R-loop sensing pathway mediates the relocation of transcribed genes to nuclear pore complexes.STAR Protoc. 2023 Sep 20;4(4):102577.doi: 10.1016/j.xpro.2023.102577.
    Scherzer et al (2022). Recruitment of Scc2/4 to double-strand breaks depends on ?H2A and DNA end resection. Life Sci Alliance. 2022 Jan 27;5(5):e202101244. doi: 10.26508/lsa.202101244. PMID: 35086935; PMCID: PMC8807874.
    Minchell et al. (2020). Cohesin Causes Replicative DNA Damage by Trapping DNA Topological Stress. Mol Cell . 2020 Mar 29;S1097-2765(20)30161-1. doi: 10.1016/j.molcel.2020.03.013.
    He et. al (2019). KEOPS complex promotes homologous recombination via DNA resection. Nucleic Acids Res. 2019 Apr 2. pii: gkz228. doi: 10.1093/nar/gkz228.
    Jakobsen et al. (2019). Minimal Resection Takes Place during Break-Induced Replication Repair of Collapsed Replication Forks and Is Controlled by Strand Invasion. Cell Rep. 2019 Jan 22;26(4):836-844.e3. doi: 10.1016/j.celrep.2018.12.108. (used AS07 214-100, which is a larger size unit of AS07 214)
    Deshpande et al. (2017). Structural Basis of Mec1-Ddc2-RPA Assembly and Activation on Single-Stranded DNA at Sites of Damage. Mol Cell. 2017 Oct 19;68(2):431-445.e5. doi: 10.1016/j.molcel.2017.09.019.
  • Protocols
  • Antibody protocols
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