High-yield overproduction and purification of human aquaporins from Pichia pastoris

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Aquaporins (AQPs) are membrane-bound water channels that play crucial roles in maintaining the water homeostasis of the human body. Here, we present a protocol for high-yield recombinant expression of human AQPs in the methylotropic yeast Pichia pastoris and subsequent AQP purification. The protocol typically yields 1–5 mg AQP per g of yeast cell at >95% purity and is compatible with any membrane protein cloned into Pichia pastoris, although expression levels may vary. For complete details on the use and execution of this protocol, please refer to Kitchen et al. (2020) and Frick et al. (2014).

OriginalsprogEngelsk
Artikelnummer101298
TidsskriftSTAR Protocols
Vol/bind3
Udgave nummer2
Antal sider19
ISSN2666-1667
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
We acknowledge funding from the Swedish Research Council (to S.T.-H. through 2013-05945 and 2019-06106 ), the Crafoord Foundation (to S.T.-H. through 20140711 and 20180916 ), the Magnus Bergvall Foundation (to S.T.-H. through 2015-01534 ), the Knut and Alice Wallenberg Foundation (to P.G. through KAW 2015.0131 and 2020.0194 ), the Lundbeck Foundation (to P.G. through R133-A12689 and R313-2019-774 ), the Independent Research Fund Denmark (to P.G. through 4183-00559 ), NordForsk (to P.G. through 82000 ), and UK Biotechnology & Biosciences Research Council (to R.M.B., and P.K. through BB/P025927/1 ). P.K. is the recipient of an Aston University 50th Anniversary Prize Fellowship; M.M.S. is supported through funding from Biogen to Prof. Tomas Kirchhausen.

Funding Information:
We acknowledge funding from the Swedish Research Council (to S.T.-H. through 2013-05945 and 2019-06106), the Crafoord Foundation (to S.T.-H. through 20140711 and 20180916), the Magnus Bergvall Foundation (to S.T.-H. through 2015-01534), the Knut and Alice Wallenberg Foundation (to P.G. through KAW 2015.0131 and 2020.0194), the Lundbeck Foundation (to P.G. through R133-A12689 and R313-2019-774), the Independent Research Fund Denmark (to P.G. through 4183-00559), NordForsk (to P.G. through 82000), and UK Biotechnology & Biosciences Research Council (to R.M.B. and P.K. through BB/P025927/1). P.K. is the recipient of an Aston University 50th Anniversary Prize Fellowship; M.M.S. is supported through funding from Biogen to Prof. Tomas Kirchhausen. S.T.H. and T.A.J. conceived the study and devised the experimental strategy. T.A.J. performed the experiments and analyzed the data. All authors contributed to manuscript writing and approved the final version. The authors declare no competing interests.

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© 2022 The Authors

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