Journal
BMC BIOTECHNOLOGY
Volume 11, Issue -, Pages -Publisher
BMC
DOI: 10.1186/1472-6750-11-61
Keywords
scFv antibodies; in vitro protein expression; phage display; antibody microarrays
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Funding
- CSIC
- Spanish Ministry of Science and Innovation [BIO2009-08818]
- regional government of Madrid
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Background: Antibodies constitute a powerful tool to study protein function, protein localization and protein-protein interactions, as well as for diagnostic and therapeutic purposes. High-throughput antibody development requires faster methodologies with lower antigen consumption. Results: Here, we describe a novel methodology to select human monoclonal recombinant antibodies by combining in vitro protein expression, phage display antibody libraries and antibody microarrays. The application of this combination of methodologies permitted us to generate human single-chain variable fragments (scFvs) against two proteins: green fluorescent protein (GFP) and thioredoxin (Trx) in a short time, using as low as 5 mu g of purified protein. These scFvs showed specific reactivity against their respective targets and worked well by ELISA and western blot. The scFvs were able to recognise as low as 31 ng of protein of their respective targets by western blot. Conclusion: This work describes a novel and miniaturized methodology to obtain human monoclonal recombinant antibodies against any target in a shorter time than other methodologies using only 5 mu g of protein. The protocol could be easily adapted to a high-throughput procedure for antibody production.
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