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Monoclonal Antibody Glycan Library Products

Comprehensive Monoclonal Antibody Glycan Library

In the rapidly evolving landscape of biopharmaceuticals, the need for absolute analytical precision is paramount. Manufacturing monoclonal antibodies (mAbs) requires rigorous quality control over inherently complex structures. Our monoclonal antibody glycan Library is designed not just as analytical tools, but as essential infrastructure for any lab engaged in cutting-edge mAb development, quality control, and comparability studies. Creative Biolabs provides the certified molecular keys to unlock the complexity of protein glycosylation.

mAbs are the dominant class of biotherapeutics; yet, their efficacy, safety, and pharmacokinetics are critically dependent on their N-glycosylation profile, primarily located in the Fc region. This glycosylation pattern is inherently heterogeneous, making consistent measurement a formidable challenge. In addition, regulatory bodies demand highly resolved and validated glycan profile data to ensure product consistency and safety. Our comprehensive mAbs glycan library provides the traceable standards necessary to ensure the highest level of confidence, reproducibility, and compliance in your analytical data. Our mAbs glycan library is meticulously derived from high-quality antibody scaffolds, typically immunoglobulin G (IgG), ensuring biological relevance to therapeutic pipelines. These products are certified glycan reference standards meticulously purified, structurally validated, and characterized for use in routine quantitative and qualitative analysis. Each batch is subjected to rigorous quality control processes to confirm purity, structure, and accurate concentration.

A schematic diagram of human IgG. (OA Literature)Fig.1 The structure of human IgG.1

Unique Monoclonal Antibody Glycan Standard Products

Leveraging high-resolution liquid chromatography and rigorous structural identification, Creative Biolabs provides a complete set of fully characterized monoclonal antibody (mAb) N-glycan library standards to ensure the highest level of accuracy and reliability in your biopharmaceutical quality control and R&D processes.

Glycan Standard Products

CAT#: GLJF-1125-HX619

CAT#: GLJF-1125-HX620

CAT#: GLJF-1125-HX621

CAT#: GLJF-1125-HX622

CAT#: GLJF-1125-HX623

CAT#: GLJF-1125-HX624

CAT#: GLJF-1125-HX625

CAT#: GLJF-1125-HX626

CAT#: GLJF-1125-HX627

CAT#: GLJF-1125-HX628

CAT#: GLJF-1125-HX629

CAT#: GLJF-1125-HX630

CAT#: GLJF-1125-HX631

CAT#: GLJF-1125-HX632

CAT#: GLJF-1125-HX633

CAT#: GLJF-1125-HX634

CAT#: GLJF-1125-HX635

CAT#: GLJF-1125-HX636

CAT#: GLJF-1125-HX637

CAT#: GLJF-1125-HX638

The Library Portfolio-Solutions for Every Analytical Platform

Glycomics is a multifaceted discipline, requiring specialized tools for optimal results. Our Glycan Library Product Line recognizes this diversity by offering specialized libraries optimized for maximum performance across the most demanding separation and detection platforms. Whether your lab relies on chromatographic separation for throughput or direct mass measurement for high resolution, we have the gold-standard solution.

Native IgG N-Glycan Library

These standards consist of purified, enzyme-released N-glycans in their native, non-derivatized form. They are the essential starting point for mass spectrometry (MS) applications where chemical modification is undesirable or not required, providing a cleaner MS spectrum.

Fluorescently Labeled IgG N-Glycan Library

Labeling glycans with a highly sensitive fluorophore (such as 2-aminobenzamide, 2-AB) is the well-established gold standard for high-sensitivity chromatographic separation and detection, providing excellent resolution and easy detection across a broad dynamic range. This approach is highly favored in quality control environments due to its robustness.

Specialized Labeled IgG Glycan Library

These standards incorporate cutting-edge chemical modifications (such as procainamide-labeled or permethylated N-glycan standards) that serve dual purposes: boosting performance in mass spectrometry detection and providing deeper structural insight through specialized fragmentation pathways. These are ideal for advanced R&D, structural elucidation, and method development validation.

Customization and Flexibility

Beyond these core products, we offer custom blending, high-concentration formulation, and specialized packaging services. Whether you require a specialized subset of glycans for a targeted assay or a unique concentration/volume formulation, our technical team is ready to partner with you to meet your exact analytical requirements.

Understanding the Biological Impact of mAbs Glycan Structure

Every library we produce is meticulously manufactured and accompanied by comprehensive documentation to ensure absolute confidence in your results and compliance with global guidelines.

Enzymatic Release Control

Glycans are released from the high-quality source material using highly specific, certified enzymes (e.g., PNGase F) to ensure intact structures and minimize non-specific linkage artifacts.

Chromatographic Purification

Extensive sequential purification steps, including high-performance hydrophilic interaction liquid chromatography (HILIC-HPLC) and ion-exchange, are employed to isolate individual glycan species to a certified purity level.

Service Features

Structural Validation

Each species is confirmed using multiple orthogonal methods, including high-resolution mass spectrometry for linkage and sequence data, and exoglycosidase digestions to confirm linkage and anomeric configuration.

Quantitative Certification

The final concentration of the reference standard is precisely determined using certified methods, enabling accurate absolute quantification in the customer's workflow.

The core library is built around the fundamental bi-antennary N-glycan structures found on the human IgG Fc fragment. These standards allow precise mapping and quantification of critical structural elements whose presence directly impacts drug functionality, half-life, and immunogenicity. All standards are based on the common core pentasaccharide structure (Man3GlcNAc2). Variations occur primarily at three biologically critical points: fucosylation, galactosylation, and sialylation. Precise monitoring of these variations is non-negotiable for biopharma success and therapeutic performance.

Table 1 A diverse core library.

Key Glycan Species Abbreviation Structural Significance Functional Impact
A-fucosylated G0F Bi-antennary glycan with a core fucose (F) but zero terminal galactose (G). The predominant structure found on most therapeutic mAbs. Represents the basal level of ADCC activity.
Mono-galactosylated G1F Bi-antennary with core fucose and a single terminal galactose. Galactosylation is directly associated with the affinity for the C1q component of complement, modulating complement-dependent cytotoxicity (CDC).
Di-galactosylated G2F Bi-antennary with core fucose and two terminal galactoses. Represents the most complete core structure. Often exhibits the strongest C1q binding potential among fucosylated species.
A-fucosylated (Fucose-Free) G0 Bi-antennary with no core fucose. Its absence dramatically enhances ADCC activity by improving FcγIIIa receptor binding.
Sialylated forms A2G2F Structures containing terminal N-acetylneuraminic acid. Sialylation is crucial for mAb circulation half-life by modulating binding to clearance receptors.

Our standards contain purified and quantified samples of these individual, complex species. This critical resource allows you to accurately assign chromatographic peaks and mass signals in your unknown mAb sample, guaranteeing correct structural identification and reliable absolute quantification. In addition, we also provide other glycan libraries, including N-Glycan, O-Glycan, HMO-Glycan, Mannose Glycan Libraries, etc., to support your project research.

How to Contact Us

Are you currently struggling with method transfer failures, inconsistent batch release data, or long development times for generating reliable in-house standards? Your solution is Creative Biolabs here. Incorporate our monoclonal antibody glycan library into your analytical workflow today. We provide the highest-purity, traceable standards you need to ensure reliable, high-quality data for your critical biopharmaceutical projects. Please contact our dedicated technical team today to request a quote or schedule a complimentary consultation on seamlessly integrating these gold-standard standards into your specific analytical platform.

Reference

  1. Mesonzhnik, Natalia et al. "Enhanced N-Glycan Profiling of Therapeutic Monoclonal Antibodies through the Application of Upper-Hinge Middle-Up Level LC-HRMS Analysis." Antibodies (Basel, Switzerland) vol. 13,3 66. 6 Aug. 2024. Distributed under an Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/antib13030066
For Research Use Only.

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