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See detail1H, 13C and 15N backbone resonance assignments for the BS3 class A beta-lactamase from Bacillus licheniformis.
Vandenameele, Julie ULg; Matagne, André ULg; Damblon, Christian ULg

in Biomolecular NMR Assignments (2010), 4(2), 195-7

Class A beta-lactamases (260-280 amino acids; M ( r ) ~ 29,000) are among the largest proteins studied in term of their folding properties. They are composed of two structural domains: an all-alpha domain ... [more ▼]

Class A beta-lactamases (260-280 amino acids; M ( r ) ~ 29,000) are among the largest proteins studied in term of their folding properties. They are composed of two structural domains: an all-alpha domain formed by five to eight helices and an alpha/beta domain consisting of a five-stranded antiparallel beta-sheet covered by three to four alpha-helices. The alpha domain (~150 residues) is made up of the central part of the polypeptide chain whereas the alpha/beta domain (111-135 residues) is constituted by the N- and C-termini of the protein. Our goal is to determine in which order the different secondary structure elements are formed during the folding of BS3. With this aim, we will use pulse-labelling hydrogen/deuterium exchange experiments, in combination with 2D-NMR measurements, to monitor the time-course of formation and stabilization of secondary structure elements. Here we report the backbone resonance assignments as the requirement for further hydrogen/deuterium exchange studies. [less ▲]

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See detailBackbone 1H, 13C, and 15N resonance assignments for lysozyme from bacteriophage lambda.
Di Paolo, Alexandre ULg; Duval, Valerie; Matagne, André ULg et al

in Biomolecular NMR assignments (2010), 4(1), 111-4

Lysozyme from lambda bacteriophage (lambda lysozyme) is an 18 kDa globular protein displaying some of the structural features common to all lysozymes; in particular, lambda lysozyme consists of two ... [more ▼]

Lysozyme from lambda bacteriophage (lambda lysozyme) is an 18 kDa globular protein displaying some of the structural features common to all lysozymes; in particular, lambda lysozyme consists of two structural domains connected by a helix, and has its catalytic residues located at the interface between these two domains. An interesting feature of lambda lysozyme, when compared to the well-characterised hen egg-white lysozyme, is its lack of disulfide bridges; this makes lambda lysozyme an interesting system for studies of protein folding. A comparison of the folding properties of lambda lysozyme and hen lysozyme will provide important insights into the role that disulfide bonds play in the refolding pathway of the latter protein. Here we report the (1)H, (13)C and (15)N backbone resonance assignments for lambda lysozyme by heteronuclear multidimensional NMR spectroscopy. These assignments provide the starting point for detailed investigation of the refolding pathway using pulse-labelling hydrogen/deuterium exchange experiments monitored by NMR. [less ▲]

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See detail(1)H, (13)C and (15)N assignments of a camelid nanobody directed against human alpha-synuclein.
Vuchelen, Anneleen; O'Day, Elizabeth; De Genst, Erwin et al

in Biomolecular NMR Assignments (2009), 3(2), 231-3

Nanobodies are single chain antibodies that are uniquely produced in Camelidae, e.g. camels and llamas. They have the desirable features of small sizes (Mw < 14 kDa) and high affinities against antigens ... [more ▼]

Nanobodies are single chain antibodies that are uniquely produced in Camelidae, e.g. camels and llamas. They have the desirable features of small sizes (Mw < 14 kDa) and high affinities against antigens (Kd approximately nM), making them ideal as structural probes for biomedically relevant motifs both in vitro and in vivo. We have previously shown that nanobody binding to amyloidogenic human lysozyme variants can effectively inhibit their aggregation, the process that is at the origin of systemic amyloid disease. Here we report the NMR assignments of a new nanobody, termed NbSyn2, which recognises the C-terminus of the intrinsically disordered protein, human alpha-synuclein (aS), whose aberrant self-association is implicated in Parkinson's disease. [less ▲]

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See detail1H, 13C and 15N resonance assignments of YajG, an Escherichia coli protein of unknown structure and function.
Boudet, Julien; Chouquet, Anne; Chahboune, Aicha et al

in Biomolecular NMR assignments (2007), 1(1), 89-91

The ampG gene codes for a permease required to uptake anhydro-muropeptides into bacterial cytoplasm. Located upstream in the same operon, is another 579-base-pair-long open reading frame encoding a ... [more ▼]

The ampG gene codes for a permease required to uptake anhydro-muropeptides into bacterial cytoplasm. Located upstream in the same operon, is another 579-base-pair-long open reading frame encoding a putative lipoprotein YajG, whose nearly complete 1H,13C,15N assignments are reported here. [less ▲]

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