Recombinant Expression, In Vitro Refolding and Characterizing Disulfide Bonds of a Mouse Inhibitory C-Type Lectin-Like Receptor Nkrp1b

0455556 - MBÚ 2016 RIV CZ eng J - Journal Article
Hernychová, Lucie - Mrázek, Hynek - Ivanova, Ljubina - Kukačka, Zdeněk - Chmelík, Josef - Novák, Petr
Recombinant Expression, In Vitro Refolding and Characterizing Disulfide Bonds of a Mouse Inhibitory C-Type Lectin-Like Receptor Nkrp1b.
Physiological Research. Roč. 64, č. 2015 (2015), s. 85-93. ISSN 0862-8408. E-ISSN 1802-9973
R&D Projects: GA MŠMT(CZ) EE2.3.30.0003; GA MŠMT(CZ) ED1.1.00/02.0109; GA MŠMT LO1509
Grant - others:OPPC(XE) CZ.2.16/3.1.00/24023
Institutional support: RVO:61388971
Keywords : NK cell * C-type lectin-like receptor (CTLR) * Nkrp1
Subject RIV: CE - Biochemistry
Impact factor: 1.643, year: 2015

As a part of the innate immunity, NK (Natural Killer) cells provide an early immune response to different stimuli, e.g. viral infections and tumor growths. However, their functions are more complex; they play an important role in reproduction, alloimmunity, autoimmunity and allergic diseases. NK cell activities require an intricate system of regulation that is ensured by many different receptors on a cell surface which integrate signals from interacting cells and soluble factors. One way to understand NK cell biology is through the structure of NK receptors, which can reveal ligand binding conditions. We present a modified protocol for recombinant expression in Escherichia coli and in vitro refolding of the ligand-binding domain of the inhibitory Nkrp1b (SJL/J) protein. Nkrp1b identity and folding was confirmed using mass spectrometry (accurate mass of the intact protein and evaluation of disulfide bonds) and one-dimensional nuclear magnetic resonance spectroscopy. The intention is to provide the basis for conducting structural studies of the inhibitory Nkrp1b protein, since only the activating Nkrp1a receptor structure is known.
Permanent Link: http://hdl.handle.net/11104/0256165