2qjt: Difference between revisions

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[[Image:2qjt.jpg|left|200px]]
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[[Image:2qjt.png|left|200px]]


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{{STRUCTURE_2qjt|  PDB=2qjt  |  SCENE=  }}  
{{STRUCTURE_2qjt|  PDB=2qjt  |  SCENE=  }}  


'''Crystal structure of a bifunctional NMN adenylyltransferase/ADP ribose pyrophosphatase complexed with AMP and MN ion from Francisella tularensis'''
===Crystal structure of a bifunctional NMN adenylyltransferase/ADP ribose pyrophosphatase complexed with AMP and MN ion from Francisella tularensis===




==Overview==
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Bacterial NadM-Nudix is a bifunctional enzyme containing a nicotinamide mononucleotide (NMN) adenylyltransferase and an ADP-ribose (ADPR) pyrophosphatase domain. While most members of this enzyme family, such as that from a model cyanobacterium Synechocystis sp., are involved primarily in nicotinamide adenine dinucleotide (NAD) salvage/recycling pathways, its close homolog in a category-A biodefense pathogen, Francisella tularensis, likely plays a central role in a recently discovered novel pathway of NAD de novo synthesis. The crystal structures of NadM-Nudix from both species, including their complexes with various ligands and catalytic metal ions, revealed detailed configurations of the substrate binding and catalytic sites in both domains. The structure of the N-terminal NadM domain may be exploited for designing new antitularemia therapeutics. The ADPR binding site in the C-terminal Nudix domain is substantially different from that of Escherichia coli ADPR pyrophosphatase, and is more similar to human NUDT9. The latter observation provided new insights into the ligand binding mode of ADPR-gated Ca(2+) channel TRPM2.
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{{ABSTRACT_PUBMED_18275811}}


==About this Structure==
==About this Structure==
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[[Category: Transferase]]
[[Category: Transferase]]
[[Category: Two individual domain]]
[[Category: Two individual domain]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 15:04:45 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 17:48:33 2008''

Revision as of 14:48, 27 July 2008

File:2qjt.png

Template:STRUCTURE 2qjt

Crystal structure of a bifunctional NMN adenylyltransferase/ADP ribose pyrophosphatase complexed with AMP and MN ion from Francisella tularensis

Template:ABSTRACT PUBMED 18275811

About this Structure

2QJT is a Single protein structure of sequence from Francisella tularensis. Full crystallographic information is available from OCA.

Reference

Bifunctional NMN Adenylyltransferase/ADP-Ribose Pyrophosphatase: Structure and Function in Bacterial NAD Metabolism., Huang N, Sorci L, Zhang X, Brautigam CA, Li X, Raffaelli N, Magni G, Grishin NV, Osterman AL, Zhang H, Structure. 2008 Feb;16(2):196-209. PMID:18275811

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