Introducing Cysteines into Nanobodies for Site-Specific Labeling

Simon Boje Hansen, Kasper Røjkjær Andersen*

*Corresponding author af dette arbejde

Publikation: Bidrag til bog/antologi/rapport/proceedingBidrag til bog/antologiForskningpeer review

Abstract

We have developed a generally applicable methodology for cysteine mutagenesis of nanobody (Nb) framework region serine residues. This strategy allows for subsequent labeling with thiol-reactive compounds without disrupting Nb antigen binding. We provide a protocol for production, labeling, and affinity determination of cysteine-engineered Nbs (cys-Nbs) with Alexa Fluor 488-maleimide and the mercury compound para-chloromercuribenzoic acid (PCMB). Alexa Fluor 488- and PCMB-labeled cys-Nbs can be used for immunofluorescence microscopy and experimental phasing in crystallography, respectively.

OriginalsprogEngelsk
TitelSingle-Domain Antibodies : Methods and Protocols
RedaktørerGreg Hussack, Kevin A. Henry
Antal sider17
UdgivelsesstedNew York
ForlagHumana Press
Publikationsdato2022
Sider327-343
ISBN (Trykt)978-1-0716-2074-8
DOI
StatusUdgivet - 2022
NavnMethods in Molecular Biology
Vol/bind2446
ISSN1064-3745

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