Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.

FimX is a large multidomain protein containing an EAL domain and involved in twitching motility in Pseudomonas aeruginosa. We present here two crystallographic structures of the EAL domain of FimX (residues 438-686): one of the apo form and the other of a complex with 5'-pGpG, the reaction prod...

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Autores principales: Julien Robert-Paganin, Sylvie Nonin-Lecomte, Stéphane Réty
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Publicado: Public Library of Science (PLoS) 2012
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Acceso en línea:https://doaj.org/article/03b56585a7c84cc4a021c0a6d6f10680
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spelling oai:doaj.org-article:03b56585a7c84cc4a021c0a6d6f106802021-11-18T08:04:10ZCrystal structure of an EAL domain in complex with reaction product 5'-pGpG.1932-620310.1371/journal.pone.0052424https://doaj.org/article/03b56585a7c84cc4a021c0a6d6f106802012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23285035/?tool=EBIhttps://doaj.org/toc/1932-6203FimX is a large multidomain protein containing an EAL domain and involved in twitching motility in Pseudomonas aeruginosa. We present here two crystallographic structures of the EAL domain of FimX (residues 438-686): one of the apo form and the other of a complex with 5'-pGpG, the reaction product of the hydrolysis of c-di-GMP. In both crystal forms, the EAL domains form a dimer delimiting a large cavity encompassing the catalytic pockets. The ligand is trapped in this cavity by its sugar phosphate moiety. We confirmed by NMR that the guanine bases are not involved in the interaction in solution. We solved here the first structure of an EAL domain bound to the reaction product 5'-pGpG. Though isolated FimX EAL domain has a very low catalytic activity, which would not be significant compared to other catalytic EAL domains, the structure with the product of the reaction can provides some hints in the mechanism of hydrolysis of the c-di-GMP by EAL domains.Julien Robert-PaganinSylvie Nonin-LecomteStéphane RétyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 12, p e52424 (2012)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Julien Robert-Paganin
Sylvie Nonin-Lecomte
Stéphane Réty
Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.
description FimX is a large multidomain protein containing an EAL domain and involved in twitching motility in Pseudomonas aeruginosa. We present here two crystallographic structures of the EAL domain of FimX (residues 438-686): one of the apo form and the other of a complex with 5'-pGpG, the reaction product of the hydrolysis of c-di-GMP. In both crystal forms, the EAL domains form a dimer delimiting a large cavity encompassing the catalytic pockets. The ligand is trapped in this cavity by its sugar phosphate moiety. We confirmed by NMR that the guanine bases are not involved in the interaction in solution. We solved here the first structure of an EAL domain bound to the reaction product 5'-pGpG. Though isolated FimX EAL domain has a very low catalytic activity, which would not be significant compared to other catalytic EAL domains, the structure with the product of the reaction can provides some hints in the mechanism of hydrolysis of the c-di-GMP by EAL domains.
format article
author Julien Robert-Paganin
Sylvie Nonin-Lecomte
Stéphane Réty
author_facet Julien Robert-Paganin
Sylvie Nonin-Lecomte
Stéphane Réty
author_sort Julien Robert-Paganin
title Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.
title_short Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.
title_full Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.
title_fullStr Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.
title_full_unstemmed Crystal structure of an EAL domain in complex with reaction product 5'-pGpG.
title_sort crystal structure of an eal domain in complex with reaction product 5'-pgpg.
publisher Public Library of Science (PLoS)
publishDate 2012
url https://doaj.org/article/03b56585a7c84cc4a021c0a6d6f10680
work_keys_str_mv AT julienrobertpaganin crystalstructureofanealdomainincomplexwithreactionproduct5pgpg
AT sylvienoninlecomte crystalstructureofanealdomainincomplexwithreactionproduct5pgpg
AT stephanerety crystalstructureofanealdomainincomplexwithreactionproduct5pgpg
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