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Native llama Nanobody Library Panning Performed by Phage and Yeast Display Provides Binders Suitable for C-Reactive Protein Detection

Oloketuyi, Sandra ; Bernedo, Robert ; Christmann, Andreas ; Borkowska, Justyna ; Cazzaniga, Giulia ; Schuchmann, Horst Wilhelm ; Niedziółka-Jönsson, Joanna ; Szot-Karpińska, Katarzyna ; Kolmar, Harald ; Marco, Ario de (2022):
Native llama Nanobody Library Panning Performed by Phage and Yeast Display Provides Binders Suitable for C-Reactive Protein Detection. (Publisher's Version)
In: Biosensors, 11 (12), MDPI, e-ISSN 2079-6374,
DOI: 10.26083/tuprints-00020274,
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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: Native llama Nanobody Library Panning Performed by Phage and Yeast Display Provides Binders Suitable for C-Reactive Protein Detection
Language: English
Abstract:

C-reactive protein (CRP) is an inflammation biomarker that should be quantified accurately during infections and healing processes. Nanobodies are good candidates to replace conventional antibodies in immunodiagnostics due to their inexpensive production, simple engineering, and the possibility to obtain higher binder density on capture surfaces. Starting from the same pre-immune library, we compared the selection output resulting from two independent panning strategies, one exclusively exploiting the phage display and another in which a first round of phage display was followed by a second round of yeast display. There was a partial output convergence between the two methods, since two clones were identified using both panning protocols but the first provided several further different sequences, whereas the second favored the recovery of many copies of few clones. The isolated anti-CRP nanobodies had affinity in the low nanomolar range and were suitable for ELISA and immunoprecipitation. One of them was fused to SpyTag and exploited in combination with SpyCatcher as the immunocapture element to quantify CRP using electrochemical impedance spectroscopy. The sensitivity of the biosensor was calculated as low as 0.21 μg/mL.

Journal or Publication Title: Biosensors
Volume of the journal: 11
Issue Number: 12
Publisher: MDPI
Collation: 14 Seiten
Uncontrolled Keywords: phage display, yeast display, nanobodies, biopanning, CRP
Classification DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie
Divisions: 07 Department of Chemistry > Fachgebiet Biochemie
Date Deposited: 29 Apr 2022 09:08
Last Modified: 29 Apr 2022 09:08
DOI: 10.26083/tuprints-00020274
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-202744
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20274
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