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Your search keyword '"Grant, J. P."' showing total 19 results
Start Over Author "Grant, J. P." Journal nature communications
19 results on '"Grant, J. P."'

1. Rubisco forms a lattice inside alpha-carboxysomes

Author

Lauren Ann Metskas, Davi Ortega, Luke M. Oltrogge, Cecilia Blikstad, Derik R. Lovejoy, Thomas G. Laughlin, David F. Savage, and Grant J. Jensen

Subjects
Science
Abstract

Many autotrophic bacteria rely on Rubisco for carbon dioxide fixation. Here the authors report the position, orientation, and structure of Rubisco within alpha-carboxysomes; showing how it polymerizes and can form a lattice inside this compartment.

Published
2022
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3. PilY1 and minor pilins form a complex priming the type IVa pilus in Myxococcus xanthus

Author

Anke Treuner-Lange, Yi-Wei Chang, Timo Glatter, Marco Herfurth, Steffi Lindow, Georges Chreifi, Grant J. Jensen, and Lotte Søgaard-Andersen

Subjects
Science
Abstract

Type IVa pili are bacterial surface filaments that undergo extension and retraction powered by a protein machine that spans the cell envelope. Here, Treuner-Lange et al. show that a complex formed by PilY1 and minor pilins is an integral part of this machine and is necessary for pilus extension, adhesion and retraction termination.

Published
2020
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4. CryoEM structure of the type IVa pilus secretin required for natural competence in Vibrio cholerae

Author

Sara J. Weaver, Davi R. Ortega, Matthew H. Sazinsky, Triana N. Dalia, Ankur B. Dalia, and Grant J. Jensen

Subjects
Science
Abstract

In Vibrio cholerae, a type IVa pilus (T4aP) binds to exogenous DNA, and threads this DNA through the outer membrane secretin, PilQ. Here authors present the cryoEM structure of PilQ from native V. cholerae cells and design a series of mutants to reversibly regulate VcPilQ gate dynamics.

Published
2020
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5. Repurposing a chemosensory macromolecular machine

Author

Davi R. Ortega, Wen Yang, Poorna Subramanian, Petra Mann, Andreas Kjær, Songye Chen, Kylie J. Watts, Sahand Pirbadian, David A. Collins, Romain Kooger, Marina G. Kalyuzhnaya, Simon Ringgaard, Ariane Briegel, and Grant J. Jensen

Subjects
Science
Abstract

Bacterial chemosensory systems are grouped into 17 flagellar classes (F1-17). Here the authors employ electron cryotomography and comparative genomics to characterise the chemosensory arrays in γ-proteobacteria and identify a structural distinct form of F7 that was repurposed to a different biological role over the course of its evolution.

Published
2020
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6. How to control single-molecule rotation

Author

Grant J. Simpson, Víctor García-López, A. Daniel Boese, James M. Tour, and Leonhard Grill

Subjects
Science
Abstract

The orientation of a molecule on a surface affects many processes, so the ability to control single-molecule rotation could be powerful. Here, the authors use the electric field from a scanning tunneling microscope tip to precisely induce unidirectional rotation of a polar molecule, allowing visualization of the molecule’s internal dipole moment.

Published
2019
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7. Simulations suggest a constrictive force is required for Gram-negative bacterial cell division

Author

Lam T. Nguyen, Catherine M. Oikonomou, H. Jane Ding, Mohammed Kaplan, Qing Yao, Yi-Wei Chang, Morgan Beeby, and Grant J. Jensen

Subjects
Science
Abstract

It is unclear whether a constrictive force is exerted on the membrane from inside during bacterial cell division, or cell wall remodeling alone drives membrane constriction from outside. Here, the authors use simulations to explore different mechanisms for cell wall division, supporting that a constrictive force is required.

Published
2019
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8. Direct measurements of ice-shelf flexure caused by surface meltwater ponding and drainage

Author

Alison F. Banwell, Ian C. Willis, Grant J. Macdonald, Becky Goodsell, and Douglas R. MacAyeal

Subjects
Science
Abstract

Meltwater ponding on top of ice shelves is thought to play a role in ice-shelf flexure and fracture, however in-situ evidence of these mechanisms is lacking. Here, the authors provide field-based evidence showing the impact of the filling and draining of four surface lakes on ice-shelf flexure in Antarctica.

Published
2019
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9. Geology of the InSight landing site on Mars

Author

Golombek, M., Warner, N. H., Grant, J. A., Hauber, E., Ansan, V., Weitz, C. M., Williams, N., Charalambous, C., Wilson, S. A., DeMott, A., Kopp, M., Lethcoe-Wilson, H., Berger, L., Hausmann, R., Marteau, E., Vrettos, C., Trussell, A., Folkner, W., Le Maistre, S., Mueller, N., Grott, M., Spohn, T., Piqueux, S., Millour, E., Forget, F., Daubar, I., Murdoch, N., Lognonné, P., Perrin, C., Rodriguez, S., Pike, W. T., Parker, T., Maki, J., Abarca, H., Deen, R., Hall, J., Andres, P., Ruoff, N., Calef, F., Smrekar, S., Baker, M. M., Banks, M., Spiga, A., Banfield, D., Garvin, J., Newman, C. E., and Banerdt, W. B.

Published
2020
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13. Repurposing a chemosensory macromolecular machine

Author

Ortega, Davi R., Yang, Wen, Subramanian, Poorna, Mann, Petra, Kjær, Andreas, Chen, Songye, Watts, Kylie J., Pirbadian, Sahand, Collins, David A., Kooger, Romain, Kalyuzhnaya, Marina G., Ringgaard, Simon, Briegel, Ariane, and Jensen, Grant J.

Published
2020
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17. Coarse-grained simulation reveals key features of HIV-1 capsid self-assembly

Author

John M. A. Grime, James F. Dama, Barbie K. Ganser-Pornillos, Cora L. Woodward, Grant J. Jensen, Mark Yeager, and Gregory A. Voth

Subjects
Science
Abstract

Significant morphological changes occur during the conversion of the immature HIV virion into a mature infectious form. Here the authors use coarse-grained molecular dynamics simulations to model HIV-1 capsid self-assembly and disassembly events that suggests several metastable capsid intermediates sensitive to local conditions.

Published
2016
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