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NMR solution structure of the N-terminal domain of the E. coli lipoprotein BamCNMR solution structure of the N-terminal domain of the E. coli lipoprotein BamC
Structural highlights
Function[NLPB_ECOLI] Part of the outer membrane protein assembly complex, which is involved in assembly and insertion of beta-barrel proteins into the outer membrane. Nonessential member of the complex that stabilizes the interaction between the essential proteins BamA and BamD.[1] [2] [3] Publication Abstract from PubMedThe CS-RDC-NOE Rosetta program was used to generate the solution structure of a 27-kDa fragment of the Escherichia coli BamC protein from a limited set of NMR data. The BamC protein is a component of the essential five-protein beta-barrel assembly machine in E. coli. The first 100 residues in BamC were disordered in solution. The Rosetta calculations showed that BamC(101-344) forms two well-defined domains connected by an approximately 18-residue linker, where the relative orientation of the domains was not defined. Both domains adopt a helix-grip fold previously observed in the Bet v 1 superfamily. (15)N relaxation data indicated a high degree of conformational flexibility for the linker connecting the N-terminal domain and the C-terminal domain in BamC. The results here show that CS-RDC-NOE Rosetta is robust and has a high tolerance for misassigned nuclear Overhauser effect restraints, greatly simplifying NMR structure determinations. Structure of the BamC Two-Domain Protein Obtained by Rosetta with a Limited NMR Data Set.,Warner LR, Varga K, Lange OF, Baker SL, Baker D, Sousa MC, Pardi A J Mol Biol. 2011 Aug 5;411(1):83-95. Epub 2011 May 23. PMID:21624375[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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