Recombinant Anti-MGEA5/OGA antibody [EPR7154(B)] - BSA and Azide free (ab227989)


  • Product name

    Anti-MGEA5/OGA antibody [EPR7154(B)] - BSA and Azide free
    See all MGEA5/OGA primary antibodies
  • Description

    Rabbit monoclonal [EPR7154(B)] to MGEA5/OGA - BSA and Azide free
  • Host species

  • Tested applications

    Suitable for: IP, IHC-P, WBmore details
    Unsuitable for: Flow Cyt or ICC
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide corresponding to Human MGEA5/OGA.
    (Peptide available as ab155521)

  • Positive control

    • IHC-P: Human kidney and colon tissue IP: HeLa cells.
  • General notes

    ab227989 is the carrier-free version of ab124807 This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    Ab227989 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

    Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information. Previously labelled as MGEA5

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.



Our Abpromise guarantee covers the use of ab227989 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IP Use at an assay dependent concentration.
IHC-P Use at an assay dependent concentration. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
WB Use at an assay dependent concentration. Detects a band of approximately 130 kDa (predicted molecular weight: 102 kDa).Can be blocked with MGEA5/OGA peptide (ab155521).
  • Application notes
    Is unsuitable for Flow Cyt or ICC.
  • Target

    • Function

      Isoform 1: Cleaves GlcNAc but not GalNAc from O-glycosylated proteins. Can use p-nitrophenyl-beta-GlcNAc and 4-methylumbelliferone-GlcNAc as substrates but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc (in vitro) (PubMed:11148210). Does not bind acetyl-CoA and does not have histone acetyltransferase activity (PubMed:24088714).
      Isoform 3: Cleaves GlcNAc but not GalNAc from O-glycosylated proteins. Can use p-nitrophenyl-beta-GlcNAc as substrate but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc (in vitro), but has about six times lower specific activity than isoform 1.
    • Tissue specificity

      Ubiquitous. Shows highest expression in the brain, placenta and pancreas.
    • Sequence similarities

      Belongs to the glycosyl hydrolase 84 family.
    • Post-translational

      Proteolytically cleaved by caspase-3 during apoptosis. The fragments interact with each other; cleavage does not decrease enzyme activity.
    • Cellular localization

      Cytoplasm and Nucleus.
    • Information by UniProt
    • Database links

    • Alternative names

      • Beta-hexosaminidase antibody
      • Beta-N-acetylglucosaminidase antibody
      • Beta-N-acetylhexosaminidase antibody
      • Bifunctional protein NCOAT antibody
      • HEXC antibody
      • Hyaluronidase in meningioma antibody
      • KIAA0679 antibody
      • MEA5 antibody
      • Meningioma expressed antigen 5 antibody
      • Meningioma-expressed antigen 5 antibody
      • MGEA 5 antibody
      • Mgea5 antibody
      • N-acetyl-beta-D-glucosaminidase antibody
      • N-acetyl-beta-glucosaminidase antibody
      • NCOAT antibody
      • Nuclear cytoplasmic O GlcNAcase and acetyltransferase antibody
      • Nuclear cytoplasmic O-GlcNAcase and acetyltransferase antibody
      • OGA antibody
      • OGA_HUMAN antibody
      • Protein O-GlcNAcase antibody
      see all


    • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human colon tissue sections labeling MGEA5/OGA with purified ab124807 at 1:50 dilution (12.56 µg/ml). Heat mediated antigen retrieval was performed Perform heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0). ImmunoHistoProbe one step HRP Polymer (ready to use)was used as the secondary antibody. Negative control:PBS instead of the primary antibody. Hematoxylin was used as a counterstain.

    • ab124807 (purified) at 1:30 dilution (2µg) immunoprecipitating MGEA5/OGA in HeLa whole cell lysate.
      Lane 1 (input): HeLa (Human cervix adenocarcinoma epithelial cell) whole cell lysate 10µg
      Lane 2 (+): ab124807 & HeLa whole cell lysate
      Lane 3 (-): Rabbit monoclonal IgG (ab172730) instead of ab124807 in HeLa whole cell lysate
      For western blotting, VeriBlot for IP Detection Reagent (HRP) (ab131366) was used for detection at 1:1000 dilution.
      Blocking and diluting buffer: 5% NFDM/TBST.

    • Equilibrium disassociation constant (KD)
      Learn more about KD

      Click here to learn more about KD

      This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab124807).

    • This IHC data was generated using the same anti-MGEA5/OGA antibody clone, EPR7154(B), in a different buffer formulation (cat# ab124807).

      ab124807, at 1/100 dilution, staining MGEA5 in paraffin-embedded Human kidney tissue by Immunohistochemistry.

      Perform heat mediated antigen retrieval before commencing with IHC staining protocol.


    This product has been referenced in:

    • Park HC  et al. Urinary N-acetyl-ß-D glucosaminidase as a surrogate marker for renal function in autosomal dominant polycystic kidney disease: 1 year prospective cohort study. BMC Nephrol 13:93 (2012). IHC-Fr ; Human . Read more (PubMed: 22935351) »
    See 1 Publication for this product

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