dc.contributor.author | Liu, Daniel S. | |
dc.contributor.author | Phipps, William S. | |
dc.contributor.author | Loh, Ken H. | |
dc.contributor.author | Howarth, Mark | |
dc.contributor.author | Ting, Alice Y. | |
dc.date.accessioned | 2015-03-03T15:58:26Z | |
dc.date.available | 2015-03-03T15:58:26Z | |
dc.date.issued | 2012-11 | |
dc.date.submitted | 2012-10 | |
dc.identifier.issn | 1936-0851 | |
dc.identifier.issn | 1936-086X | |
dc.identifier.uri | http://hdl.handle.net/1721.1/95744 | |
dc.description.abstract | We present a methodology for targeting quantum dots to specific proteins on living cells in two steps. In the first step, Escherichia coli lipoic acid ligase (LplA) site-specifically attaches 10-bromodecanoic acid onto a 13 amino acid recognition sequence that is genetically fused to a protein of interest. In the second step, quantum dots derivatized with HaloTag, a modified haloalkane dehalogenase, react with the ligated bromodecanoic acid to form a covalent adduct. We found this targeting method to be specific, fast, and fully orthogonal to a previously reported and analogous quantum dot targeting method using E. coli biotin ligase and streptavidin. We used these two methods in combination for two-color quantum dot visualization of different proteins expressed on the same cell or on neighboring cells. Both methods were also used to track single molecules of neurexin, a synaptic adhesion protein, to measure its lateral diffusion in the presence of neuroligin, its trans-synaptic adhesion partner. | en_US |
dc.description.sponsorship | National Institutes of Health (U.S.) (R01 GM072670) | en_US |
dc.description.sponsorship | Camille & Henry Dreyfus Foundation | en_US |
dc.description.sponsorship | Massachusetts Institute of Technology. Computational and Systems Biology Program. MIT-Merck Postdoctoral Fellowship | en_US |
dc.language.iso | en_US | |
dc.publisher | American Chemical Society (ACS) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1021/nn304793z | en_US |
dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
dc.source | PMC | en_US |
dc.title | Quantum Dot Targeting with Lipoic Acid Ligase and HaloTag for Single-Molecule Imaging on Living Cells | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Liu, Daniel S., William S. Phipps, Ken H. Loh, Mark Howarth, and Alice Y. Ting. “Quantum Dot Targeting with Lipoic Acid Ligase and HaloTag for Single-Molecule Imaging on Living Cells.” ACS Nano (December 5, 2012): 11080-11087. | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Chemistry | en_US |
dc.contributor.mitauthor | Ting, Alice Y. | en_US |
dc.contributor.mitauthor | Liu, Daniel S. | en_US |
dc.contributor.mitauthor | Phipps, William S. | en_US |
dc.contributor.mitauthor | Loh, Ken H. | en_US |
dc.contributor.mitauthor | Howarth, Mark | en_US |
dc.relation.journal | ACS Nano | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Liu, Daniel S.; Phipps, William S.; Loh, Ken H.; Howarth, Mark; Ting, Alice Y. | en_US |
dc.identifier.orcid | https://orcid.org/0000-0003-4994-2392 | |
dc.identifier.orcid | https://orcid.org/0000-0002-8277-5226 | |
mit.license | OPEN_ACCESS_POLICY | en_US |
mit.metadata.status | Complete | |