Abstract
SummaryWe have recently reported electron tomographic studies of sections obtained from chemically fixed E. coli cells overproducing the 60‐kDa chemotaxis receptor Tsr. Membrane extracts from these cells prepared in the presence of Tween‐80 display hexagonally close‐packed microcrystalline assemblies of Tsr, with a repeating unit large enough to accommodate six Tsr molecules arranged as trimers of receptor dimers. Here, we report the direct visualization of the Tsr receptor clusters in (i) vitrified cell suspensions of cells overproducing Tsr, prepared by rapid plunge‐freezing, and (ii) frozen‐hydrated sections obtained from cells frozen under high pressure. The frozen‐hydrated sections were generated by sectioning at −150 °C using a diamond knife with a 25° knife angle, with nominal thicknesses ranging from 20 to 60 nm. There is excellent correspondence between the spatial arrangement of receptors in thin frozen‐hydrated sections and the arrangements found in negatively stained membrane extracts and plunge‐frozen cells, highlighting the potential of using frozen‐hydrated sections for the study of macromolecular assemblies within cells under near‐native conditions.
Bibliography
ZHANG, P., BOS, E., HEYMANN, J., GNAEGI, H., KESSEL, M., PETERS, P. J., & SUBRAMANIAM, S. (2004). Direct visualization of receptor arrays in frozenâhydrated sections and plungeâfrozen specimens of E. coli engineered to overproduce the chemotaxis receptor Tsr. Journal of Microscopy, 216(1), 76â83. Portico.
References
30
Referenced
65
10.1046/j.1365-2818.2003.01244.x
10.1016/j.jsb.2004.03.010
10.1073/pnas.092071899
10.1111/j.1365-2818.1980.tb04123.x
10.1016/S0962-8924(98)01423-8
/ Trends Cell Biol / Electron tomography of molecules and cells by Baumeister W. (1999)10.1111/j.1365-2818.1983.tb04714.x
10.1006/jsbi.1998.4034
10.1128/jb.155.1.381-390.1983
10.1016/S0968-0004(00)01770-9
10.1016/S0006-3495(98)74028-7
10.1016/S0301-4622(02)00307-1
10.1016/S1047-8477(02)00034-5
10.1073/pnas.96.20.11346
10.1073/pnas.132376499
10.1038/23512
10.1128/JB.186.15.5052-5061.2004
10.1016/S0092-8674(00)80671-6
10.1128/JB.183.11.3261-3267.2001
10.1128/JB.185.20.6112-6118.2003
10.1111/j.1365-2818.1983.tb04225.x
10.1016/0968-4328(94)90001-9
10.1046/j.1365-2818.1998.00420.x
10.1002/(SICI)1097-0029(19960215)33:3<241::AID-JEMT1>3.0.CO;2-T
10.1073/pnas.011589998
10.1083/jcb.72.2.292
10.1126/stke.2002.132.pe25
10.1146/annurev.biophys.33.110502.140339
10.1016/S0006-3495(88)82983-7
{'issue': '2', 'key': 'e_1_2_5_30_1', 'first-page': '1238', 'article-title': 'Ultramicrotomy of polymers using an oscillating knife; improving polymer morphology', 'volume': '8', 'author': 'Vastenhout J.S.', 'year': '2002', 'journal-title': 'Microsc. Microanal'}
/ Microsc. Microanal / Ultramicrotomy of polymers using an oscillating knife; improving polymer morphology by Vastenhout J.S. (2002)10.1128/JB.185.12.3636-3643.2003
Dates
Type | When |
---|---|
Created | 20 years, 11 months ago (Sept. 15, 2004, 11:46 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 12, 2023, 3:45 p.m.) |
Indexed | 1 year ago (Aug. 6, 2024, 12:39 a.m.) |
Issued | 20 years, 11 months ago (Sept. 15, 2004) |
Published | 20 years, 11 months ago (Sept. 15, 2004) |
Published Online | 20 years, 11 months ago (Sept. 15, 2004) |
Published Print | 20 years, 10 months ago (Oct. 1, 2004) |
@article{ZHANG_2004, title={Direct visualization of receptor arrays in frozen‐hydrated sections and plunge‐frozen specimens of E. coli engineered to overproduce the chemotaxis receptor Tsr}, volume={216}, ISSN={1365-2818}, url={http://dx.doi.org/10.1111/j.0022-2720.2004.01395.x}, DOI={10.1111/j.0022-2720.2004.01395.x}, number={1}, journal={Journal of Microscopy}, publisher={Wiley}, author={ZHANG, P. and BOS, E. and HEYMANN, J. and GNAEGI, H. and KESSEL, M. and PETERS, P. J. and SUBRAMANIAM, S.}, year={2004}, month=sep, pages={76–83} }