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https://www.uniprot.org/uniprot/P0AAC8
Is able to transfer iron-sulfur clusters to apo-ferredoxin. Multiple cycles of [2Fe2S] cluster formation and transfer are observed, suggesting that IscA acts catalytically. Recruits intracellular free iron so as to provide iron for the assembly of transient iron-sulfur cluster in IscU in the presence of IscS, L-cysteine and the thioredoxin reductase system TrxA/TrxB.
https://www.ncbi.nlm.nih.gov/pubmed/15247288
Sep 03, 2004 · Substitution of the invariant cysteine residues Cys-99 or Cys-101 in IscA with serine completely abolishes the iron binding activity of the protein. The IscA mutants that fail to bind iron are unable to mediate iron delivery for the iron-sulfur cluster assembly in IscU under the limited accessible "free" iron conditions.Author: Huangen Ding, Robert J. Clark, Baojin Ding
https://www.ncbi.nlm.nih.gov/gene/946999
IscA may constitute the redundant cellular activities to recruit intracellular iron and deliver iron for the iron-sulfur cluster assembly in E. coli. the thioredoxin reductase system mediates iron binding in IscA and iron delivery for the iron-sulfur cluster assembly in IscU
http://www.jbc.org/content/280/34/30432.full.pdf
Thioredoxin Reductase System Mediates Iron Binding in IscA and Iron Delivery for the Iron-Sulfur Cluster Assembly in IscU* Received for publication, April 27, 2005, and in revised form, June 27, 2005 Published, JBC Papers in Press, June 28, 2005, DOI 10.1074/jbc.M504638200 …Author: Huangen Ding, Karyn Harrison, Jianxin Lu
http://www.jbc.org/content/early/2005/06/28/jbc.M504638200.full.pdf
1 Thioredoxin Reductase System Mediates Iron Binding in IscA and Iron Delivery for the Iron-Sulfur Cluster Assembly in IscU Huangen Ding1, Karyn Harrison1 and Jianxin Lu2 From 1Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, and 2Institute of Cellular and Molecular Medicine, Wenzhou Medical College, Wenzhou, Zhejiang, China
https://www.researchgate.net/publication/8462537_IscA_Mediates_Iron_Delivery_for_Assembly_of_Iron-Sulfur_Clusters_in_IscU_under_the_Limited_Accessible_Free_Iron_Conditions
Remarkably, IscA, an iron-sulfur cluster assembly protein with an iron association constant of 3.0 × 1019 m–1, is able to overcome the iron limitation due to sodium citrate and deliver iron for ...
https://onlinelibrary.wiley.com/doi/full/10.1111/mmi.12676
Jun 19, 2014 · IscA has a unique copper binding activity among the iron‐sulphur cluster assembly proteins. Each protein encoded by the gene cluster iscSUA‐hscBA‐fdx was expressed in the E. coli copA/cueO/cusA mutant cells grown in LB media supplemented with or without 200 μM CuSO 4.Proteins were purified from the cells and subjected to UV‐visible absorption measurements.Author: Guoqiang Tan, Guoqiang Tan, Zishuo Cheng, Yilin Pang, Aaron P. Landry, Jianghui Li, Jianxin Lu, Huan...
https://www.researchgate.net/publication/7759359_Thioredoxin_Reductase_System_Mediates_Iron_Binding_in_IscA_and_Iron_Delivery_for_the_Iron-Sulfur_Cluster_Assembly_in_IscU
Request PDF Thioredoxin Reductase System Mediates Iron Binding in IscA and Iron Delivery for the Iron-Sulfur Cluster Assembly in IscU IscA is a key member of the iron-sulfur cluster assembly ...
https://www.sciencedirect.com/science/article/pii/S0022283604001731
To investigate structural features of IscA that affect iron binding and Fe-S cluster assembly and transfer, we have begun efforts to determine the crystal structure of E. coli IscA. In the studies described here, we report the crystal structure of the metal-free apo-form of the protein and discuss its implications for iron and Fe-S cluster binding.Author: Jill R. Cupp-Vickery, Jonathan J. Silberg, Dennis T. Ta, Larry E. Vickery
https://pubs.acs.org/doi/10.1021/bi015656z
In addition, Nif IscA was shown to couple delivery of iron and sulfur by using ferrous ion to reduce sulfane sulfur. The ability of Fe−S scaffold proteins to couple the delivery of these two toxic and reactive Fe−S cluster precursors is likely to be important for minimizing …Author: Carsten Krebs, Jeffrey N. Agar, Archer D. Smith, Jeverson Frazzon, Dennis R. Dean, Boi Hanh Huynh, M...
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