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Alpaca Serum Antibodies Decoded with Rapid Novor's De Novo Protein Sequencing Technology


News provided by

Rapid Novor Inc

Jul 19, 2022, 09:00 ET

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Alpaca polyclonal nanobodies decoded
Alpaca polyclonal nanobodies decoded

Picomolar range high-affinity VHH antibodies (nanobodies) were sequenced directly from serum polyclonal antibodies for the first time in the world. This demonstrates that REpAb® is a viable orthogonal antibody discovery platform to directly sequence those highly potent and highly developable antibodies, which have gone through the natural selection and maturation processes of the immune system.

KITCHENER, Ontario, July 19, 2022 /PRNewswire-PRWeb/ -- Rapid Novor Inc., the world's leader in antibody protein sequencing using mass spectrometry, announced today that its REpAb® antibody discovery platform was used to successfully sequence 10 unique nanobodies directly from an alpaca's serum polyclonal antibody proteins. Furthermore, the 10 nanobodies were recombinantly produced, and the binding analysis shows that 9 out of 10 nanobodies bind to the antigen with picomolar affinity.

"To our knowledge, this is yet another first-in-the-world achievement that an alpaca VHH pAb was de novo sequenced directly from the serum protein without access to any genomic information." said Dr. Bin Ma, President and Chief Scientist of Rapid Novor Inc. "In contrast to previous studies we have performed, this alpaca pAb was generated against a large protein antigen, and the resulting pAb mixture is quite complex. I am excited to see that we still pulled this off. Antigen-specific antibodies in the serum are usually abundant, but antigen-specific circulating B cells are not. Our unique ability to de novo sequence functional antibody proteins out of a complex mixture gives us an edge, especially in situations where the B cells are hard to obtain."

REpAb® is well positioned to be a viable orthogonal antibody discovery platform to directly sequence those highly potent and highly developable antibodies.

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In the past 12 months, Rapid Novor's REpAb® technology has been on a rapid advancement trajectory. In May 2021, the company became the first to decode rabbit polyclonal antibodies using only proteomics. Six months later, in November, goat polyclonal antibody proteins were directly sequenced, and this was described as the Holy Grail of reagent antibody technology.

Rapid Novor aims to further expand the technologies to work with additional species and varieties of antigens. Compared to NGS and cell-based discovery methods, REpAb® is well positioned to be a viable orthogonal antibody discovery platform to directly sequence those highly potent and highly developable antibodies, which have gone through the natural selection and maturation processes of the immune system.

The company has conducted 10+ polyclonal antibody sequencing and discovery campaigns in the first six months of 2022, involving a variety of species including mice, dogs, chickens, goats and now camelids. The team is actively working with pharmaceutical companies and biotech partners to further integrate its REpAb® platform into the antibody discovery process.

About Rapid Novor Inc.
Rapid Novor Inc., is the world's leader in antibody protein sequencing technology. Specializing in the field of mass spectrometry-based proteomics, the team has developed the technology to directly sequence antibody proteins without needing access to the producing cell line. Located at the Kitchener-Waterloo high-tech hub, the company continues to build its technology portfolios based on years of scientific research and inventions. The company's mission is to elevate human health by decoding immunity. For more information, please visit http://www.rapidnovor.com. Follow the company on Twitter @rapidnovor or LinkedIn.

Media Contact

Mingjie Xie, Rapid Novor Inc, 1 8858999990 Ext: 700, [email protected]

SOURCE Rapid Novor Inc

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