November 2023

Alpaca Antibody Discovery and Characterization with Polyclonal Sequencing, SPR and HDX-MS

2023-11-14T11:28:27-05:00November 13th, 2023|Case Studies|

Authors:  Teresa Nunez, Amber Couzens, Jin Duan, Chelsea Reitzel, Rosalin Dubois,  Lin Wu, Qixin Liu, Thierry Le Bihan, Marko Jović, Dominic Narang, Bin Ma  Published: Nov 13, 2023 Abstract In this study, the challenge of accessing functional antibodies from the circulating antibody repertoire was addressed using Rapid Novor's [...]

October 2023

The Basics of Protein and Antibody Glycosylation

2023-10-20T15:23:18-04:00October 20th, 2023|Articles|

Written by: Genya Gorshtein, MSc Published: October 18, 2023 Contents Introduction Types of Glycans How are Proteins Glycosylated? Why are Proteins Glycosylated? Protein Glycosylation in the Immune System Importance of Understanding Glycan Profiles of Proteins Discover Glycan Sites and Profiles with Rapid Novor Introduction [...]

New Antibody Characterization Essentials from Discovery to Clinic

2023-10-27T10:34:59-04:00October 4th, 2023|Webinars|

In this webinar, you will learn: Workflows for antibody characterization that extend beyond the primary amino acid sequence How to leverage HDX-MS for epitope mapping and SPR for binding kinetics to understand the mechanism of action and maximize the effectiveness of your characterization efforts How to ensure high-quality antibody production with [...]

August 2023

June 2023

Antibody Drug Discovery and Development

2023-06-09T11:40:17-04:00June 9th, 2023|Articles|

Written by: Vanessa Yoon Calvelo, PhD Published: June 6, 2023 Contents The Drug Development Pathway: Overview and Challenges Early Discovery and Development of Therapeutic Antibodies Target Identification and Validation Antibody Discovery and Expression Lead Characterization and Selection Lead Engineering and Optimization Candidate Selection The Drug Development Pathway: Overview [...]

May 2023

Functional Characterization of Therapeutic Antibodies

2023-05-15T11:02:52-04:00May 3rd, 2023|Articles|

Written by: Vanessa Yoon Calvelo, PhD Published: April 24, 2023 Contents Introduction Functions of Therapeutic Antibodies Functional Assays for Therapeutic Antibodies Functional Characterization in the Therapeutic Antibody Discovery Process Introduction Monoclonal antibodies (mAbs) and related biological products often present as ideal therapeutics largely due to: Their [...]

April 2023

Immunochemical Characterization of Therapeutic Antibodies

2023-09-07T13:06:03-04:00April 17th, 2023|Articles|

Written by: Vanessa Yoon Calvelo, PhD Published: April 14, 2023 Contents Introduction Immunochemical Properties of Therapeutic Antibodies Rapid Immunochemical Characterization of Antibodies Introduction Therapeutic antibodies, predominantly monoclonal antibodies (mAbs), are a rapidly expanding class of drugs with over 100 mAb-based biologics now approved for the treatment [...]

Navigating Intellectual Property Protection for Antibodies

2023-06-21T10:21:38-04:00April 1st, 2023|Webinars|

In This Webinar, You Will Learn: Why IP is important in the development of antibody-based assets Patent application process and requirements How to strengthen patent applications Applications of Next Generation Protein Sequencing, SPR, and HDX-MS for antibody-related patent applications Abstract In the development of novel and innovative antibody-based [...]

February 2023

Therapeutic Antibody Discovery: From Target to Candidate

2023-06-21T10:23:33-04:00February 24th, 2023|Articles|

Written by: Genya Gorshtein, MSc Published: February 17, 2023 Contents Introduction Target Discovery and Validation Antibody Discovery Characterization and Lead Selection Engineering and Optimization Candidate Selection Therapeutic Antibody Discovery with Rapid Novor Introduction Monoclonal antibodies (mAbs) offer a vast range of configurations for therapeutic applications, [...]

Nanobody Lead Optimization with Epitope Mapping and Binning

2023-05-15T12:44:14-04:00February 14th, 2023|Webinars|

In this webinar, you will learn: How Rapid Novor’s de novo polyclonal sequencing platform REpAb® can accelerate any nanobody development pipeline How SPR and HDX-MS integrate into an antibody discovery and development workflow How to choose optimal lead candidates with SPR and HDX-MS How epitopes can be characterized using SPR and HDX-MS [...]

Towards Antigen-Specific Tregs for Type 1 Diabetes: Construction and Functional Assessment of Pancreatic Endocrine Marker, HPi2-Based Chimeric Antigen Receptor

2023-06-21T11:03:11-04:00February 3rd, 2023|Case Studies|

Antibodies with established, specific targets can be sequenced and utilized to engineer the hinge region and antigen-binding domains with antibody fragments and derivatives. With the sequence information in hand, further steps to optimizing a viable therapeutic approach can be more accessible.

January 2023

Antibody Affinity and Avidity – The Strength of a Single Interaction Versus a Multivalent Interaction

2023-05-25T10:20:23-04:00January 9th, 2023|Articles|

Written by: Genya Gorshtein, MSc Published: January 6, 2023 Contents Introduction What is Affinity? What is Avidity? Measuring Affinity and Avidity: ELISA or SPR? Measuring Affinity And Avidity For Biological Applications Affinity and Avidity Analysis via SPR with Rapid Novor Introduction Kinetics of antibody-antigen interactions [...]

December 2022

The Hunt for Novel Therapeutics Through Antibody Engineering

2023-06-21T10:25:09-04:00December 2nd, 2022|Articles|

Written by: Genya Gorshtein, MSc Published: November 1, 2022 Contents Introduction Approaches for Engineering Antibody Therapeutics Driving Antibody Engineering with Next Generation Protein Sequencing and Proteomics Introduction Antibody engineering encompasses various development, production strategies, and modification techniques to improve the biological properties of monoclonal antibodies (mAbs) [...]

Cell Specific Protein Degradation with Antibody Conjugated PROTACs

2023-05-25T10:29:24-04:00December 2nd, 2022|Articles|

Written by: Genya Gorshtein, MSc Published: November 25, 2022 Contents Introduction General PROTAC Structure and Function Antibody-Conjugated PROTACs Developing AbPROTACs with De Novo Antibody Sequencing and Proteomics Introduction Small-molecule drug development is aimed at inhibiting disease-promoting protein function through occupancy-driven protein inhibition. A major caveat of [...]

October 2022

Selecting Specific Monoclonal Antibodies by SPR – Alpaca Antibody Showdown

2023-05-15T12:44:34-04:00October 30th, 2022|Webinars|

In this SPR webinar, you will learn: How SPR works and its unique advantages for kinetic analysis of antibody-antigen interactions Applications of SPR in antibody discovery Functionality of SPR in antibody characterization Abstract Due to their ability to bind biomolecules specifically and tightly, antibodies are highly [...]

Characterizing Biomolecular Interactions with Surface Plasmon Resonance

2023-06-21T11:02:04-04:00October 21st, 2022|Articles|

Biological processes are driven by molecules that interact through specific molecular contacts, often to form a stable complex. These interactions are typically defined by the principles of thermodynamics as well as biomolecular structure and recognition. At the simplest level is the interaction between a target molecule with a specific binding site and a probing molecule that binds to that site, resulting in the bound complex.

September 2022

Characterizing Fragile Protein Complexes

2023-05-15T12:45:26-04:00September 14th, 2022|Webinars|

Webinar Highlights You will learn: Introduction to the structure and function of the tuberous sclerosis protein complex (pTSC) A novel strategy for isolating and purifying protein complexes from native sources using recombinantly produced Fabs How Next Generation Protein Sequencing (NGPS) works Applications of NGPS to aid design and engineering of recombinant antibody [...]

August 2022

Surface Plasmon Resonance Spectroscopy

2023-06-22T10:42:56-04:00August 16th, 2022|Articles|

Written by: Vanessa Yoon Calvelo, PhD Updated: January 19, 2023 (Published: August 11, 2022) Contents What is Surface Plasmon Resonance Spectroscopy? What is SPR Used For? How Does SPR Work? SPR Experimental Workflow SPR Sensorgram SPR Advantages SPR Applications SPR Antibody-Antigen Interaction Analysis at Rapid Novor What is [...]

Moving Towards Biosimilar Drugs

2023-06-22T10:38:32-04:00August 4th, 2022|Articles|

Written by: Vanessa Yoon Calvelo, PhD Published: August 3, 2022 Contents What are Biosimilar Drugs? Why are Biosimilars Being Developed? Biosimilars are not the Equivalent of Generics Biosimilar Development Biosimilar Monoclonal Antibodies De Novo Protein Sequencing Solutions in Biosimilar Development What are Biosimilar Drugs? Biosimilar drugs, [...]

July 2022

Protein Characterization by HDX-MS

2023-06-21T11:01:38-04:00July 26th, 2022|Articles|

Characterization of proteins and protein complexes is a major keystone of structural biology. As our understanding of cellular processes continues to evolve from simple pathways to complicated networks, our need for advanced analytical methods is quite apparent. Mass spectrometry (MS)-based structural approaches can be used to study protein conformational changes and dynamics, protein motion/flexibility, ligand-protein binding, and protein-protein interfaces.

Adeno-Associated Virus Vectors for Gene Therapy Delivery

2023-06-22T10:41:47-04:00July 14th, 2022|Articles|

Written by: Vanessa Yoon Calvelo, PhD Published: July 11, 2022 Contents What is Gene Therapy? What are Adeno-Associated Viruses? Engineering of AAVs for Gene Therapy Engineering AAVs for Improved Transduction Engineering AAVs for Improved Immunogenicity De Novo Protein Sequencing Applications in AAV Characterization and Development What is Gene [...]

Next Generation Vaccine Development with Proteomics

2023-06-21T11:01:12-04:00July 5th, 2022|Webinars|

As nearly all individuals have pre-existing immunity to influenza viruses, influenza-specific memory B cells will likely be recalled upon COBRA HA vaccination. By comparing the antibody response towards specific wild-type influenza strains and COBRA antigens, we can begin to understand the potential for COBRA-based vaccines to be used in the clinic.

June 2022

Chimeric Antigen Receptors and T cells – CAR-T

2023-06-22T10:39:28-04:00June 21st, 2022|Articles|

Written by: Vanessa Yoon Calvelo, PhD Published: June 13, 2022 Contents What is CAR-T Cell Therapy? CAR Structure and Function CAR-T Cell Development Engineering Strategies for CAR-T Cells De Novo Protein Sequencing Applications in CAR-T Cell Development What is CAR-T Cell Therapy? The infusion of T cells [...]

Why do Post-Translational Modifications Matter?

2023-05-15T11:19:45-04:00June 14th, 2022|Articles|

Written by: Vanessa Yoon Calvelo, PhD Updated: January 19, 2023 (Published: June 2, 2022) Contents What are post-translational modifications (PTMs)? Impact of PTMs Types of PTMs PTMs increase microheterogeneity of antibodies Characterization of PTMs by next generation protein sequencing The Importance of Post-Translational Modifications (PTMs) Post-translational [...]

Protein Structure and How to Study It

2023-05-15T11:21:16-04:00June 10th, 2022|Articles|

Written by: Yuning Wang, PhD Updated: January 26, 2023 (Published: June 3, 2022) Contents Introduction The Four Levels of Protein Structure How are Protein Structures Studied? Introduction Structural information provides a great deal of understanding of how a protein works, which can allow us to [...]

May 2022

What is HDX-MS Epitope Mapping?

2023-06-21T11:00:11-04:00May 15th, 2022|Articles|

The origin of hydrogen-deuterium exchange (HDX) dates back to the 1950s, when protein scientist Linderstrøm-Lang created a method involving protein deuteration to distinguish amide hydrogens participating in secondary structures. Today, scientists frequently rely on HDX data to investigate protein structure, conformational dynamics, and protein-ligand interaction.

Enriching Engineered T Cells with Antibody Sequencing & Modulation

2023-06-21T10:59:48-04:00May 10th, 2022|Webinars|

Known, high-performing and well used antibodies against useful targets on CAR-T cells can be examined for mechanism of action using proteomics and mass spectrometry. Knowledge of the antibody sequences via Next Generation Protein Sequencing (NGPS) can be useful for humanizing or otherwise engineering constructs. Rapid Epitope mapping by HDX can be useful for both epitope and paratope engineering strategies.

April 2022

March 2022

First Immunoassay for Measuring Isoaspartate in Human Serum Albumin

2023-06-21T10:52:50-04:00March 25th, 2022|Case Studies|

The ongoing pandemic has reinforced the need for in vitro diagnostics to globally surveille emerging pathogens and provide better medical care. In particular, immunoassays are favoured due to their affordability, ease, and speed. Nevertheless, the combination of rapidly evolving pathogens, and more complex diseases resulting from increasing life expectancy worldwide require more sensitive and specific immunoassays in the nick of time. To increase sensitivity, immunoassay development can benefit from exploiting industry-leading technologies such as de novo protein sequencing.

February 2022

Camelid Antibodies and Nanobodies

2023-05-15T11:27:38-04:00February 4th, 2022|Articles|

Written by: Yuning Wang, PhD Updated: January 18, 2023 (Published: January 21, 2022) Contents Discovery of Camelid Antibodies What are Camelid Antibodies? Structure of Camelid Antibodies and Nanobodies Advantages of Camelid Antibodies and Nanobodies Camelid Antibodies and Nanobodies for Therapeutic and Research Applications How are Camelid Antibodies [...]

January 2022

Why Is Sequence Blindness Acceptable with Antibodies?

2023-06-21T10:53:08-04:00January 30th, 2022|Webinars|

There have been cases where researchers have trusted a kit, and they see a positive reaction only to, unfortunately, realize that the kit was actually detecting another protein because the kit’s antibody lot changed. Such was the case for the University of Toronto’s Diamandis team who spent half a million dollars and nearly two years due to an unreliable antibody. A certificate proving that the protein sequence of an antibody remains unchanged would have easily avoided the aforementioned mishaps.

Recombinant Therapeutic pAbs are Now Possible

2023-06-21T10:58:13-04:00January 20th, 2022|Webinars|

Polyclonal antibodies are popular research reagents for their high sensitivity and robust cross-platform performance. But few companies consider them viable for therapeutic applications as they are almost impossible to characterize. Additionally, they suffer from a lack of reproducibility and limited supply. Monoclonal antibodies (mAbs) can be reliably characterized and produced for therapeutic applications, but are more costly to discover and develop. Rapid Novor’s REpAb technology can overcome these limitations by capturing the sequences of the most abundant IgG in a pAb and enabling indefinite antibody production. Here we report the first successful conversion of a goat polyclonal antibody into a cocktail of recombinant mAbs using only the pAb protein sample.

December 2021

Polyclonal Antibody Sequencing in Therapeutics Development Pipelines

2023-06-21T10:58:31-04:00December 20th, 2021|Webinars|

Over the past several years Rapid Novor has been developing the world's best antibody protein sequencing platform, with over 2700 monoclonal antibodies and proteins sequenced. In 2020, they unveiled their most advanced technology to date- REpAb® polyclonal antibody sequencing. The platform combines the world's best protein sequencing technology and NGS to comprehensively mine the antigen specific antibody repertoire present in rabbit and human patient samples. By leveraging the platform, teams can build robust antibody assays and therapeutic leads derived from patient's blood.

Next Generation Protein Sequencing in Veterinary Medicine and Industry

2023-05-15T12:31:25-04:00December 3rd, 2021|Whitepapers|

Since 2006, the One Health Initiative (OHI)’s goal has been to demonstrate the inextricable link between humans, animals, and the environment. Certainly, the current global pandemic is a great testament to the ties between climate change, humans, and animals that OHI has been working to highlight. The rise of other zoonotic diseases (e.g., Hendra, and Nipah viruses) not only directly affect humans through disease transmission but may also result in deep impacts to the food supply

November 2021

What is IgBLAST?

2023-05-15T11:32:39-04:00November 25th, 2021|Articles|

Written by Yuning Wang, PhD and María Gerpe, PhD November 12, 2021 Contents IgBLAST Definition Why was IgBLAST Created? The Functions of IgBLAST How to Use IgBLAST Limitations of IgBLAST Additional Resources IgBLAST Definition Developed by the National Center for Biotechnology Information (NCBI), IgBlast is [...]

October 2021

What is Peptide Mapping?

2023-05-15T11:34:01-04:00October 28th, 2021|Articles|

Peptide mapping is a widely used analytical technique to verify the primary structure (amino acid sequence) and characterize the chemical modifications of a protein. It analyzes peptides generated from the digestion of an isolated protein, or a protein mixture

Ushering the New Era in Anti-Drug Antibody Assays with Next Generation Protein Sequencing

2023-05-15T12:31:01-04:00October 15th, 2021|Whitepapers|

Anti-drug antibody (ADA) assays are critical to assess the clinical efficacy and safety of a biological drug and rely on control reagents that mimic the ADA response to the biological drug being tested. These positive controls typically consist of animal-derived pooled polyclonal antibodies or human monoclonal antibody reference panels against the target protein drug.

September 2021

July 2021

Fully Harnessing the Power of Immunotherapy through Protein Sequencing

2023-06-21T10:58:53-04:00July 20th, 2021|Webinars|

Of interest to human and veterinary drug development scientists, biologics and biosimilars development scientists, scientists performing pre-clinical assay development, immunotherapy researchers, oncolytic therapy development scientists, gene therapy development scientists, gene therapy, and oncolytic therapy researchers, CAR-T, and CAR-NK development scientists

June 2021

Bispecific Therapeutics Explained

2023-05-15T11:55:16-04:00June 28th, 2021|Articles|

Bispecific therapeutics are monoclonal antibodies that carry a specific antigen-binding capability on each arm. Bispecifics are thus capable of having two specificities that can either double the binding affinity of the antibody toward the same antigen (increased avidity), or can now bind to two targets. Bispecifics are most often described as two types: trispecifics and bispecific T-cell engaged antibodies (BiTE).

May 2021

Polyclonal Antibody Sequencing with Only Proteomics

2023-06-21T10:56:34-04:00May 13th, 2021|Webinars|

Over the past 5 years Rapid Novor has perfected monoclonal antibody sequencing, and is now sequencing mAbs from polyclonal mixtures using REpAb®.  After successfully launching their proteogenomics based sequencing technology to deconvolute the immune response, the team has further evolved the technology and has derived the most abundant mAb sequences directly from rabbit blood using only proteomics. The talk will surround the development, progress and use cases for REpAb®.

April 2021

Non-Fungible Antibodies

2023-06-21T10:57:53-04:00April 20th, 2021|Webinars|

Other than a paucity in widespread use, such efforts still do not address the main issue: the uniqueness of antibodies. Unlike currency, antibodies are non-fungible. To manufacture a replica of a specific antibody, we must first know its sequence. Sometimes, scientists may obtain the sequence through nucleotide sequencing means.

Leveraging pAbs for Therapeutic Development

2023-06-21T10:56:21-04:00April 13th, 2021|Webinars|

Over the past several years Rapid Novor has been developing the world’s best antibody protein sequencing platform, sequencing over 2700 monoclonal antibodies and proteins. In 2020, they unveiled their most advanced technology to date - REpAb® polyclonal antibody sequencing. The platform combines the world’s best protein sequencing technology and NGS to comprehensively mine the antigen-specific antibody repertoire present in rabbit and human patient samples. By leveraging the platform, teams can build robust antibody assays and therapeutic leads derived from patients’ blood.

March 2021

The Underlying Cause of Medical Diagnostic Invalidation

2023-05-15T12:40:02-04:00March 23rd, 2021|Whitepapers|

In-vitro diagnostics (IVDs) are one of the most commonly used tools to diagnose conditions and guide treatment decisions and are often considered the “silent champion” of healthcare. They work by detecting the absence or presence of particular markers or by measuring the concentration of analytes or specific substances.

Leveraging Polyclonal Antibody Sequencing to Get High Affinity Binders Against Tough Targets

2023-06-21T10:56:04-04:00March 13th, 2021|Webinars|

When it comes to polyclonal antibodies, how they are discovered can be just as important as how they are reproduced. In our talk originally presented at Antibody Engineering & Therapeutics Digital 2021, we highlighted the latest technology that’s capable of capturing the most abundant and high-affinity monoclonal antibodies directly from a poly mixture.

January 2021

November 2020

October 2020

Research Insurance with De Novo Protein Sequencing

2023-06-21T10:55:38-04:00October 3rd, 2020|Webinars|

If you could have guaranteed stability, certainty, and reproducibility for your research, would you be interested? Imagine this, if you’re 2 years into your project and your freezer died along with all of your important cell lines, what would you do? This is just one of the situations covered in this webinar, along with many other solutions researchers have begun to implement to safeguard their efforts. Whether you’re looking to proceed with stability and certainty or you’re looking for an immediate solution for your current reproducibility challenges, protein sequencing may be the answer.

September 2020

Leveraging Recombinant Patient Antibodies in Therapeutic Applications

2023-06-21T10:54:56-04:00September 3rd, 2020|Webinars|

Our team has perfected the art of monoclonal antibody sequencing and is now ready to demonstrate our ability to sequence mAbs from polyclonal mixtures. In this talk, Anthony will walk through our new polyclonal sequencing platform that uses both proteomics and genomics to sequence the most abundant antibodies found in polyclonal sera.

April 2019