Custom Modified Antibodies: Decoding Protein Post-Translational Modifications

1. Core Concept

Posttranslational modifications (PTMs) are reversible chemical alterations that occur after protein biosynthesis, which dramatically expand protein diversity, regulate protein activity, localization, and interactions, and control nearly all cellular processes. Detecting specific PTM states with high precision is essential for understanding life mechanisms, disease pathways, and drug targets.

2. Research Frontiers

More than 400 PTM types have been identified, with phosphorylation, acetylation, methylation, ubiquitination, glycosylation, and lipidation being the most studied. Emerging PTMs including lactylation, crotonylation, and succinylation are becoming hotspots in epigenetics, metabolism, and tumor research. Customized modificationspecific antibodies have become indispensable tools for sitespecific, highsensitivity PTM detection.

3. Research Significance

PTMs regulate signal transduction, cell cycle, gene expression, immune response, and DNA repair. Dysregulation of PTMs is closely associated with cancer, neurodegenerative diseases, metabolic disorders, and inflammation. Sitespecific PTM detection supports biomarker discovery, targeted drug development, and precision medicine.

4. Key Mechanisms & Methodology

· Major PTM Types: Phosphorylation, acetylation, methylation, ubiquitination, glycosylation, lipidation; each mediates distinct biological functions.

· Role of Modified Antibodies: Enable specific recognition of modified vs unmodified proteins; widely used in WB, IP, IHC, IF, and ChIPseq.

· Antibody Classification: Sitespecific antibodies (recognize residuespecific modification) and panmodification antibodies (recognize global modification patterns).

· Custom Antibody Development: Rational modified peptide immunogen design, optimized animal immunization, dualvalidation screening, and dualcolumn affinity purification to ensure high specificity.

5. ANT BIO PTE. LTD. Empowers PTM Research

ANT BIO PTE. LTD. is a leading supplier of life science reagents, offering highquality antibodies, proteins, kits, and general reagents to support global PTM research. Our three professional subbrands form a complete solution system:

· Absin: Provides PTM sample preparation kits, lysis buffers, WB detection kits, and supporting reagents.

· Starter: Specializes in custom PTMspecific antibodies for phosphorylation, acetylation, methylation, ubiquitination, lactylation, crotonylation, and other modifications with strict sitespecific validation.

· UA: Supplies modified peptides, carrier proteins, and recombinant proteins for immunogen synthesis and antibody verification.

Our core advantages in custom modification antibody services:

· Full coverage of classical and emerging PTM types

· Rational design of modified peptides with unmodified controls

· Dualcolumn affinity purification (negative adsorption + positive enrichment)

· Multilevel specificity validation ensuring no crossreactivity

· Compatibility with WB, IP, IHC, IF, and other applications

6. Brand Mission

ANT BIO PTE. LTD. is committed to providing highly specific, reliable, and customizable PTM research tools to accelerate breakthroughs in protein regulation, disease mechanisms, and translational medicine. We uphold scientific rigor and customercentric innovation to support accurate and reproducible global life science research.

7. Related Product Categories

· Custom sitespecific PTM antibodies (Starter)

· Panmodification antibodies (Starter)

· Modified peptide antigens and unmodified control peptides (UA)

· PTM research kits and general reagents (Absin)

· WB/IP/IHC/IF validated modification antibodies

ANT BIO PTE. LTD. – Empowering Scientific Breakthroughs

At ANTBIO, we are committed to advancing life science research through high-quality, reliable reagents and comprehensive solutions. Our specialized sub-brands (Absin, Starter, UA) cover a full spectrum of research needs, from general reagents and kits to antibodies and recombinant proteins. With a focus on innovation, quality, and customer-centricity, we strive to be your trusted partner in unlocking scientific mysteries and driving medical progress. Explore our product portfolio today and elevate your research to new heights.