Abstract
Site specificity is pivotal in obtaining homogeneously labeled proteins without batch-to-batch variations. More importantly, precisely controlled modification at specific sites avoids potential pitfalls that could otherwise interfere with protein folding, structure, and function. Inspired by the chemical synthesis of d-luciferin, we have developed an efficient strategy (second-order rate constant k 2 = 9.2 M−1 s−1) for labeling of proteins containing 1,2-aminothiol via reaction with 2-cyanobenzothiazole (CBT). In addition, the CBT condensation enjoys the convenience of protein engineering, as production of N-terminal cysteine-containing proteins has been well developed for native chemical ligation. This protocol describes the preparation of Renilla luciferase (rLuc) with 1,2-aminothiol at either its N- or C-terminus, and site-specific labeling of rLuc with fluorescein or 18F via CBT condensation.
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Fernandez-Suarez M, Ting AY (2008) Fluorescent probes for super-resolution imaging in living cells. Nat Rev Mol Cell Biol 9(12):929–943. doi:10.1038/nrm2531
Carter P, Merchant AM (1997) Engineering antibodies for imaging and therapy. Curr Opin Biotechnol 8(4):449–454. doi:10.1016/s0958-1669(97)80067-5
Jing CR, Cornish VW (2011) Chemical tags for labeling proteins inside living cells. Acc Chem Res 44(9):784–792. doi:10.1021/ar200099f
White EH, McCapra F, Field GF, McElroy WD (1961) The structure and synthesis of firefly luciferin. J Am Chem Soc 83(10):2402–2403. doi:10.1021/ja01471a051
Ren HJ, Xiao F, Zhan K, Kim YP, Xie HX, Xia ZY, Rao J (2009) A biocompatible condensation reaction for the labeling of terminal cysteine residues on proteins. Angew Chem Int Ed 48(51):9658–9662. doi:10.1002/anie.200903627
Soellner MB, Nilsson BL, Raines RT (2006) Reaction mechanism and kinetics of the traceless staudinger ligation. J Am Chem Soc 128(27):8820–8828. doi:10.1021/ja060484k
Dirksen A, Hackeng TM, Dawson PE (2006) Nucleophilic catalysis of oxime ligation. Angew Chem Int Ed 45(45):7581–7584. doi:10.1002/anie.200602877
Dirksen A, Dirksen S, Hackeng TM, Dawson PE (2006) Nucleophilic catalysis of hydrazone formation and transimination: implications for dynamic covalent chemistry. J Am Chem Soc 128(49):15602–15603. doi:10.1021/ja067189k
Sletten EM, Bertozzi CR (2011) From mechanism to mouse: a tale of two bioorthogonal reactions. Acc Chem Res 44(9):666–676. doi:10.1021/ar200148z
Dawson PE, Muir TW, Clarklewis I, Kent SBH (1994) Synthesis of proteins by native chemical ligation. Science 266(5186):776–779
Erlanson DA, Chytil M, Verdine GL (1996) The leucine zipper domain controls the orientation of AP-1 in the NFAT center dot AP-1 center dot DNA complex. Chem Biol 3(12):981–991. doi:10.1016/s1074-5521(96)90165-9
Tolbert TJ, Wong C-H (2002) New methods for proteomic research: preparation of proteins with N-terminal cysteines for labeling and conjugation. Angew Chem Int Ed 41(12):2171–2174. doi:10.1002/1521-3773(20020617)41:12<2171::aid-anie2171>3.0.co;2-q
Gentle IE, De Souza DP, Baca M (2004) Direct production of proteins with N-terminal cysteine for site-specific conjugation. Bioconjug Chem 15(3):658–663. doi:10.1021/bc049965o
Nguyen DP, Elliott T, Holt M, Muir TW, Chin JW (2011) Genetically encoded 1,2-aminothiols facilitate rapid and site-specific protein labeling via a bio-orthogonal cyanobenzothiazole condensation. J Am Chem Soc 133(30):11418–11421. doi:10.1021/ja203111c
Li X, Fekner T, Ottesen JJ, Chan MK (2009) A pyrrolysine analogue for site-specific protein ubiquitination. Angew Chem 121(48):9348–9351. doi:10.1002/ange.200904472
Muralidharan V, Muir TW (2006) Protein ligation: an enabling technology for the biophysical analysis of proteins. Nat Methods 3(6):429–438. doi:10.1038/nmeth886
Muir TW, Sondhi D, Cole PA (1998) Expressed protein ligation: a general method for protein engineering. Proc Natl Acad Sci U S A 95(12):6705–6710. doi:10.1073/pnas.95.12.6705
Jeon J, Shen B, Xiong L, Miao Z, Lee KH, Rao J, Chin FT (2012) Efficient method for site-specific 18F-labeling of biomolecules using the rapid condensation reaction between 2-cyanobenzothiazole and cysteine. Bioconjug Chem 23(9):1902–1908. doi:10.1021/bc300273m
Cheng Y, Peng H, Chen W, Ni N, Ke B, Dai C, Wang B (2013) Rapid and specific post-synthesis modification of DNA through a biocompatible condensation of 1,2-aminothiols with 2-cyanobenzothiazole. Chemistry 19(12):4036–4042. doi:10.1002/chem.201201677
Liang GL, Ren HJ, Rao JH (2010) A biocompatible condensation reaction for controlled assembly of nanostructures in living cells. Nat Chem 2(1):54–60. doi:10.1038/nchem.480
Liang GL, Ronald J, Chen YX, Ye DJ, Pandit P, Ma ML, Rutt B, Rao JH (2011) Controlled self-assembling of gadolinium nanoparticles as smart molecular magnetic resonance imaging contrast agents. Angew Chem Int Ed 50(28):6283–6286. doi:10.1002/anie.201007018
Ye DJ, Liang GL, Ma ML, Rao JH (2011) Controlling intracellular macrocyclization for the imaging of protease activity. Angew Chem Int Ed 50(10):2275–2279. doi:10.1002/anie.201006140
Shen B, Jeon J, Palner M, Ye D, Shuhendler A, Chin FT, Rao J (2013) Positron emission tomography imaging of drug-induced tumor apoptosis with a caspase-triggered nanoaggregation probe. Angew Chem Int Ed 52(40):10511–10514. doi:10.1002/anie.201303422
Ye D, Shuhendler AJ, Cui L, Tong L, Tee SS, Tikhomirov G, Felsher DW, Rao J (2014) Bioorthogonal cyclization-mediated in situ self-assembly of small-molecule probes for imaging caspase activity in living mice. Nat Chem 6 (6):519–526. doi:10.1038/nchem.1920
Ye D, Shuhendler AJ, Pandit P, Brewer KD, Tee SS, Cui L, Tikhomirov G, Rutt B, Rao J (2014) Caspase-responsive smart gadolinium-based contrast agent for magnetic resonance imaging of drug-induced apoptosis. Chem Sci 5(10):3845–3852. doi:10.1039/c4sc01392a
Van de Bittner GC, Bertozzi CR, Chang CJ (2013) Strategy for dual-analyte luciferin imaging: in vivo bioluminescence detection of hydrogen peroxide and caspase activity in a murine model of acute inflammation. J Am Chem Soc 135(5):1783–1795. doi:10.1021/ja309078t
Godinat A, Park HM, Miller SC, Cheng K, Hanahan D, Sanman LE, Bogyo M, Yu A, Nikitin GF, Stahl A, Dubikovskaya EA (2013) A biocompatible in vivo ligation reaction and its application for noninvasive bioluminescent imaging of protease activity in living mice. ACS Chem Biol. doi:10.1021/cb3007314
Loening AM, Fenn TD, Wu AM, Gambhir SS (2006) Consensus guided mutagenesis of Renilla luciferase yields enhanced stability and light output. Protein Eng Des Sel 19(9):391–400. doi:10.1093/protein/gzl023
Schmidt MJ, Summerer D (2012) A need for speed: genetic encoding of rapid cycloaddition chemistries for protein labelling in living cells. Chembiochem 13(11):1553–1557. doi:10.1002/cbic.201200321
Acknowledgement
This work was funded by a grant from NIGMS (R01GM086196-01), the IDEA award from Department of Defense Breast Cancer Research Program (W81XWH-09-1-0057) and the NCI ICMIC at Stanford (1P50CA114747-06).
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Cui, L., Rao, J. (2015). 2-Cyanobenzothiazole (CBT) Condensation for Site-Specific Labeling of Proteins at the Terminal Cysteine Residues. In: Gautier, A., Hinner, M. (eds) Site-Specific Protein Labeling. Methods in Molecular Biology, vol 1266. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-2272-7_5
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DOI: https://doi.org/10.1007/978-1-4939-2272-7_5
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