Inventory of the GH70 enzymes encoded by Leuconostoc citreum NRRL B-1299 - identification of three novel -transglucosylases
Autor: | Catherine Fontagné-Faucher, Pierre Monsan, Delphine Passerini, Valentin Loux, Claire Moulis, Magali Remaud-Simeon, Marlène Vuillemin, Sandrine Morel, Lisa Ufarté |
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Přispěvatelé: | Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Institut National Polytechnique (Toulouse) (Toulouse INP), Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés (LISBP), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de la Recherche Agronomique (INRA), Mathématiques et Informatique Appliquées du Génome à l'Environnement [Jouy-En-Josas] (MaIAGE), Institut National de la Recherche Agronomique (INRA), Laboratoire de Biotechnologies Agroalimentaire et Environnementale (LBAE), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut Universitaire de Technologie - Paul Sabatier (IUT Paul Sabatier), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Région Midi-Pyrénées (France), ANR-10-ALIA-0003,OENOPOLYS,Les polysaccharides de la bactérie lactique Oenococcus oeni, de l'élucidation de leurs structures et voies de biosynthèse à leur valorisation technologique(2010), ANR-12-CDII-0005,ENGEL,Ingénierie d'une Plateforme Microbienne pour la Production de Biopolymères et Glycoconjugués(2012), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT), Université de Toulouse (UT), Institut National de la Recherche Agronomique (INRA)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut Universitaire de Technologie - Paul Sabatier (IUT Paul Sabatier), Université de Toulouse (UT)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3) |
Jazyk: | angličtina |
Rok vydání: | 2015 |
Předmět: |
[SDV]Life Sciences [q-bio]
Molecular Sequence Data glucansucrase Biology medicine.disease_cause Biochemistry Genome branching sucrase Substrate Specificity Sucrase Bacterial Proteins Leuconostoc citreum [SDV.IDA]Life Sciences [q-bio]/Food engineering Glucansucrase medicine Consensus sequence [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering [INFO]Computer Science [cs] Amino Acid Sequence [MATH]Mathematics [math] Molecular Biology Gene Prophage transglucosylase dextransucrase Molecular Sequence Annotation Cell Biology Hydrogen-Ion Concentration Kinetics Leuconostoccitreum NRRL B-1299 Glucosyltransferases Chromosomal region biology.protein Leuconostoc |
Zdroj: | FEBS Journal FEBS Journal, Wiley, 2015, 282 (11), pp.2115-2130. ⟨10.1111/febs.13261⟩ FEBS Journal, 2015, 282 (11), pp.2115-2130. ⟨10.1111/febs.13261⟩ |
ISSN: | 1742-464X 1742-4658 |
DOI: | 10.1111/febs.13261⟩ |
Popis: | International audience; Leuconostoccitreum NRRL B-1299 has long been known to produce -glucans containing both -(16) and -(12) linkages, which are synthesized by -transglucosylases of the GH70 family. We sequenced the genome of Leuconostoccitreum NRRL B-1299 to identify the full inventory of GH70 enzymes in this strain. Three new genes (brsA, dsrM and dsrDP) putatively encoding GH70 enzymes were identified. The corresponding recombinant enzymes were characterized. Branching sucraseA (BRS-A) grafts linear -(16) dextran with -(12)-linked glucosyl units, and is probably involved in the -(12) branching of L.citreum NRRL B-1299 dextran. This is the first report of a naturally occurring -(12) branching sucrase. DSR-M and DSR-DP are dextransucrases that are specific for -(16) linkage synthesis and mainly produce oligomers or short dextrans with molar masses between 580 and 27000gmol(-1). In addition, DSR-DP contains sequences that diverge from the consensus sequences that are typically present in enzymes that synthesize linear dextran. Comparison of the genome with five other L.citreum genomes further revealed that dsrDP is unique to L.citreum NRRL B-1299. The presence of this gene in a prophage represents the first evidence of phage-mediated horizontal transfer of genes encoding such enzymes in lactic acid bacteria. Finally, brsA and dsrM are located in a chromosomal region in which genes encoding strain-specific GH70 enzymes are consistently located. This region may be a good target on which to focus in order to rapidly evaluate the diversity of GH70 enzymes in L.citreum strains. |
Databáze: | OpenAIRE |
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