Modification specific antibodies

Monoclonal Antibody form

    What if you would never choose a wrong anti-PTM antibody again? We make your PTM visible thanks to our guaranteed anti-PTM antibody development service. Tell us about your project and requirements, and we will develop your antibody via our optimized platform of hybridoma generation for diagnostic applications. You can even test your antibodies in your facilities using your samples and protocols before buying them. Our process is designed to minimize risks and secure your investment.

    Why choose ProteoGenix to develop
    your anti-PTM antibodies?

    Guaranteed anti-PTM antibodies
    Satisfaction guaranteed!

    We guarantee you’re your anti-PTM antibody will work in your conditions.

    Tested modification specific antibodies
    You test it!

    We are so confident that we propose you to validate our antibody before payment!

    PTM antibody development experts
    High success rate

    Our success rate is over 98% on more than 300 monoclonal antibodies developed!

    Binders guaranteed for therapeutic applications
    Highest ethical standards

    ProteoGenix applies the highest ethical standards and is committed to the ethical use of animal science.

    one stop shop modification specific antibodies
    One-stop solution

    We propose complete solutions from antigen design to the production of your guaranteed antibody!

    PTM antibody experts
    PhD account managers

    Our account managers are monoclonal antibody development experts who can help you make the best decisions for your project!

    Avoid the risk of choosing wrong anti-PTM antibodies!

    Choosing a wrong anti-PTM antibody can have adverse impacts on your research such as bad results, loss of time and of precious results. That’s why, ProteoGenix developed a guaranteed hybridoma development service. To be sure to get your own prefect reagent, here are the steps you should follow:

      1. Present us your project and your requirements

      2. Let us bear the development and production of your own antibody

      3. We test it in your own conditions

      4. You test it in your own lab.

      5. You’re happy with your antibody? You just need to buy it!



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    Our anti-PTM antibody development process

    Step Content Timeline Deliverables
    Antigen production
    • Design and synthesis of the modified (with PTM) and unmodified peptides
    3 to 4 weeks
    Mice immunization
    • Mice injections
    • Immune response control by ELISA
    8 to 12 weeks
    Hybridoma production
    • Mice selection
    • Fusion of B cells with myeloma cells
    • Screening of the fusion products by ELISA
    • Selection of hybridomas positive against the modified peptide & negative against the unmodified peptide
    3 to 4 weeks
    • 10-20 best clones for customer’s selection
    Antibody production
    • Subcloning of two parental clones
    • Antibody production and purification
    7 to 12 weeks
    • 2mg of purified antibody
    • One hybridoma cell line (4 frozen vials)
    • Modified and unmodified peptides (2mg each)

    Anti-PTM antibodies adapted to your project

    Post-translation modifications play a significant role in protein structure and function. More of 200 post-translational modifications exist in vivo and each of them plays an important role. At ProteoGenix, we develop anti-PTM antibodies for various research applications: cell signaling, disease diagnostics, protein structure and function, development of therapeutic proteins…


    Glycosylation is one of the most frequent but also complex and most misunderstood post-translational modifications. It is commonly observed in secreted and membrane protein.  Oligosaccharides can be either N-linked to a nitrogen atom (usually to the amide nitrogen of an asparagine residue) or O-linked to an oxygen atom of a serine or threonine.
    Glycosylation is also particularly important in therapeutics as most of the approved biotherapeutics are glycoproteins. It has been shown to influence various parameters such as protein folding, protein targeting, stability, half-life, immunogenicity… Thus, the detection of glycosylated targets (and the development of highly specific and sensitive glycosylation-specific antibodies) with great precision is a key point in the development of new biopharmaceuticals and for many other research applications.

    Looking for a glycosylation-specific antibody? Send us your requirements!


    Protein phosphorylation corresponds to the attachment of a phosphate moiety to an amino-acid residue, usually a serine (in most of the cases), a threonine or a tyrosine. The phosphorylation step is done by kinases whereas the dephosphorylation step is performed by phosphatases. Phosphorylation is involved in the regulation of many cellular processes such as cell growth, cell apoptosis, cell signaling…

    Need a phosphorylation-specific antibody for your experiments? We make it for you!


    Protein methylation refers to the addition of a methyl group to an amino acid residue. This methyl addition, mediated by methyltransferases, can occur either on a nitrogen atom (N-methylation) or on an oxygen atom (O-methylation). Due to its small size, methylation does not drastically impact the sterical hindrance of the modified residue. Methylation is known to increase protein hydrophobicity and to neutralize a negative charge when bound to carboxylic acids. It has been found to occur on up to 8 different amino acids in various organisms but the most commonly studied methylated residues remain lysines and arginines. Methylation of lysine and arginine at histones is known to play an important role in the regulation of epigenetics and diseases.

    Looking for a methylation specific antibody? Contact us and talk together about your project!


    Protein ubiquitination refers to the addition of an 8kDA polypeptide consisting of 76 AA to the N-terminus of a protein. Ubiquitination represents a multi-enzymatic process involving the successive action of three enzymes: ubiquitin-activating enzyme E1, ubiquitin-conjugating enzyme E2 and ubiquitin ligase E3. Ubiquitination can occur in two different manner:

    • Monoubiquitination which correspond to the addition of one ubiquitin molecule and is involved in endocytic traffic regulation, inflammation and DNA repair

    • Polyubiquitination resulting in the formation of a polyubiquitinated protein recognized by the 26S proteasome in the protein degradation pathway.

    Need to develop your custom ubiquitination-specific antibody? Contact our account managers!


    N-acetylation can be a reversible or irreversible process and consists in the transfer of an acetyl group to a nitrogen atom. N-acetylation occurs in two steps:

    1. The cleavage of methionine by methionine aminopeptidase

    2. The addition of an acetyl group from acetyl-CoA by N-acetyltransferase.

    Most of the eukaryotic proteins are acetylated however the biological significance is still unclear.

    Acetylation is very well studied in the case of histone proteins where lysine acetylation it occurs via histone acetyltransferase (HAT) and results in increased transcriptional activity.

    Contact us to get your custom acetylation-specific antibody!


    Amidation corresponds to the replacement of a protein’s C-terminal carboxyl group with an amide group. It is one of the most common C-terminal PTM.
    Protein amidation is catalyzed by a bifunctional enzyme, peptidylglycine alpha-amidating monooxygenase (PAM). PAM corresponds to a precursor which contains 2 enzymes catalyzing the alpha-amidation reaction:

    • Peptidylglycine alpha-hydroxylating monooxygenase (PHM) catalyses the stereospecific  hydroxylation of the glycine alpha-carbon of all the peptidylglycine substrates

    • Peptidyl-alpha-hydroxyglycine alpha-amidating lyase (PAL) generates the alpha-amidated product.

    The amidation rule isn’t fully understood yet. However, following some studies on the interaction of amidated peptides with their respective receptors, it is thought to play a determinant role in the ligand-receptor interaction. Amidation neutralizes the peptide’s C-terminus negative charge and, thus increases its hydrophobicity and potentially its ability to bind to a receptor.

    You need a custom modification specific antibody for your experiments? Contact our PhD account managers who will be happy to design your personalized solution.