Assembly scaffold NifEN: A structural and functional homolog of the nitrogenase catalytic component
Abstract
Significance This work provides direct evidence for the formation of an M-cluster on the assembly scaffold NifEN, establishing NifEN as the second known protein that houses a nitrogenase cofactor. A “half-on, half-off” scheme of cofactor biosynthesis can be proposed based on the outcome of this study, which suggests an asymmetric nature of the assembly sites in the seemingly equivalent αβ-halves of NifEN and a coordination of various biosynthetic events via a unique conformational switch on/off mechanism. The comparable substrate-reducing capabilities of NifEN and NifDK establish the former as a structural and functional homolog of the latter, providing a proof-of-concept for the feasibility of probing key catalytic features of NifDK via reconstruction of a NifDK equivalent on the basis of a “simplified” template, NifEN.
- Authors:
-
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697-3900,
- Department of Chemistry, Stanford University, Stanford, CA 94305,
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA 92697-3900,, Department of Chemistry, University of California, Irvine, CA 92697-2025,
- Stanford Synchrotron Radiation Lightsource, Stanford Linear Accelerator Center, Stanford University, Menlo Park, CA 94025
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1288984
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Published Article
- Journal Name:
- Proceedings of the National Academy of Sciences of the United States of America
- Additional Journal Information:
- Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 113 Journal Issue: 34; Journal ID: ISSN 0027-8424
- Publisher:
- Proceedings of the National Academy of Sciences
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Fay, Aaron W., Blank, Michael A., Rebelein, Johannes G., Lee, Chi Chung, Ribbe, Markus W., Hedman, Britt, Hodgson, Keith O., and Hu, Yilin. Assembly scaffold NifEN: A structural and functional homolog of the nitrogenase catalytic component. United States: N. p., 2016.
Web. doi:10.1073/pnas.1609574113.
Fay, Aaron W., Blank, Michael A., Rebelein, Johannes G., Lee, Chi Chung, Ribbe, Markus W., Hedman, Britt, Hodgson, Keith O., & Hu, Yilin. Assembly scaffold NifEN: A structural and functional homolog of the nitrogenase catalytic component. United States. https://doi.org/10.1073/pnas.1609574113
Fay, Aaron W., Blank, Michael A., Rebelein, Johannes G., Lee, Chi Chung, Ribbe, Markus W., Hedman, Britt, Hodgson, Keith O., and Hu, Yilin. Tue .
"Assembly scaffold NifEN: A structural and functional homolog of the nitrogenase catalytic component". United States. https://doi.org/10.1073/pnas.1609574113.
@article{osti_1288984,
title = {Assembly scaffold NifEN: A structural and functional homolog of the nitrogenase catalytic component},
author = {Fay, Aaron W. and Blank, Michael A. and Rebelein, Johannes G. and Lee, Chi Chung and Ribbe, Markus W. and Hedman, Britt and Hodgson, Keith O. and Hu, Yilin},
abstractNote = {Significance This work provides direct evidence for the formation of an M-cluster on the assembly scaffold NifEN, establishing NifEN as the second known protein that houses a nitrogenase cofactor. A “half-on, half-off” scheme of cofactor biosynthesis can be proposed based on the outcome of this study, which suggests an asymmetric nature of the assembly sites in the seemingly equivalent αβ-halves of NifEN and a coordination of various biosynthetic events via a unique conformational switch on/off mechanism. The comparable substrate-reducing capabilities of NifEN and NifDK establish the former as a structural and functional homolog of the latter, providing a proof-of-concept for the feasibility of probing key catalytic features of NifDK via reconstruction of a NifDK equivalent on the basis of a “simplified” template, NifEN.},
doi = {10.1073/pnas.1609574113},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 34,
volume = 113,
place = {United States},
year = {Tue Aug 09 00:00:00 EDT 2016},
month = {Tue Aug 09 00:00:00 EDT 2016}
}
https://doi.org/10.1073/pnas.1609574113
Web of Science
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