Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für bioanorganische Chemie     Collection: MPI für bioanorganische Chemie     Display Documents



  history
ID: 733994.0, MPI für bioanorganische Chemie / MPI für bioanorganische Chemie
Comparative electronic structures of nitrogenase FeMoco and FeVco
Authors:Rees, Julian A.; Bjornsson, Ragnar; Kowalska, Joanna K.; Lima, Frederico A.; Schlesier, Julia; Sippel, Daniel; Weyhermüller, Thomas; Einsle, Oliver; Kovacs, Julie A.; DeBeer, Serena
Language:English
Date of Publication (YYYY-MM-DD):2017
Title of Journal:Dalton Transactions
Journal Abbrev.:Dalton trans.
Volume:46
Issue / Number:8
Start Page:2445
End Page:2455
Review Status:Internal review
Audience:Experts Only
Abstract / Description:An investigation of the active site cofactors of the molybdenum and vanadium nitrogenases (FeMoco and FeVco) was performed using high-resolution X-ray spectroscopy. Synthetic heterometallic iron-sulfur cluster models and density functional theory calculations complement the study of the MoFe and VFe holoproteins using both non-resonant and resonant X-ray emission spectroscopy. Spectroscopic data show the presence of direct iron-heterometal bonds, which are found to be weaker in FeVco. Furthermore, the interstitial carbide is found to perturb the electronic structures of the cofactors through highly covalent Fe-C bonding. The implications of these conclusions are discussed in light of the differential reactivity of the molybdenum and vanadium nitrogenases towards various substrates. Possible functional roles for both the heterometal and the interstitial carbide are detailed.
Comment of the Author/Creator:Date: 2017, 2017
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für bioanorganische Chemie
Identifiers:ISI:000395864900007 [ID No:1]
ISSN:1477-9226 [ID No:2]
DOI:10.1039/c7dt00128b [ID No:3]
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.