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  Iron center, substrate recognition and mechanism of peptide deformylase

Becker, A., Schlichting, I., Kabsch, W., Groche, D., Schultz, S., & Wagner, A. F. V. (1998). Iron center, substrate recognition and mechanism of peptide deformylase. Nature Structural and Molecular Biology, 5(12), 1053-1058. doi:10.1038/4162.

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Genre: Journal Article
Alternative Title : Iron center, substrate recognition and mechanism of peptide deformylase

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NatStructBiol_5_1998_1053.pdf (Any fulltext), 730KB
 
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 Creators:
Becker, Andreas1, Author              
Schlichting, Ilme2, Author              
Kabsch, Wolfgang1, 2, Author              
Groche, Dieter, Author
Schultz, Sabine, Author
Wagner, A. F. Volker, Author
Affiliations:
1Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497712              
2Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              

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 Abstract: Eubacterial proteins are synthesized with a formyl group at the N-terminus which is hydrolytically removed from the nascent chain by the mononuclear iron enzyme peptide deformylase. Catalytic efficiency strongly depends on the identity of the bound metal. We have determined by X-ray crystallography the Fe2+, Ni2+ and Zn2+ forms of the Escherichia coli enzyme and a structure in complex with the reaction product Met-Ala-Ser. The structure of the complex, with the tripeptide bound at the active site, suggests detailed models for the mechanism of substrate recognition and catalysis. Differences of the protein structures due to the identity of the bound metal are extremely small and account only for the observation that Zn2+ binds more tightly than Fe2+ or Ni 2+. The striking loss of catalytic activity of the Zn2+ form could be caused by its reluctance to change between tetrahedral and five-fold metal coordination believed to occur during catalysis.

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Language(s): eng - English
 Dates: 1998-06-221998-09-111998-12-01
 Publication Status: Published in print
 Pages: 6
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 Table of Contents: -
 Rev. Type: Peer
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Title: Nature Structural and Molecular Biology
  Other : Nature Struct Biol
Source Genre: Journal
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Publ. Info: New York, NY : Nature Pub. Group
Pages: - Volume / Issue: 5 (12) Sequence Number: - Start / End Page: 1053 - 1058 Identifier: ISSN: 1545-9993
CoNE: https://pure.mpg.de/cone/journals/resource/954925603763