title: (1)H, (15)N and (13)C resonance assignments for 3rC and 3rCWP: amyloidogenic variants of imunoglobulin λ 3 light-chain.
abstract: Primary amyloidosis (AL) is the most common amyloid systemic disease and it is characterized by the deposition of immunoglobulin light-chain amyloid fibers in different organs, causing organ failure. The germ-line lambda 3 immunoglobulin light-chain proteins have been correlated with the AL condition. Two mutants have been derived from this germ-line, the single mutant C34Y (3rC) and the triple mutant C34Y, W35A and P7D (3rCWP), presenting a remarkable difference in amyloid fibril formation propensities in vitro. Here we report the (1)H, (13)C and (15)N resonance assignments of these proteins, as the first step to use solution nuclear magnetic resonance spectroscopy to get a better understanding of the amyloid fibril formation differences between these two mutants.
authors.affiliation: Laboratorio de Bioquímica y Resonancia Magnética Nuclear, Centro de Investigaciones Químicas, Universidad Atónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, Mexico.
authors.forename: Paloma
authors.initials: P
authors.lastname: Gil-Rodríguez
authors.forename: Carlos
authors.initials: C
authors.lastname: Amero
mesh_terms: D000595:Amino Acid Sequence; D000682:Amyloid / Q000737:chemistry*; D007147:Immunoglobulin Light Chains / Q000737:chemistry* / Q000235:genetics*; D008958:Models, Molecular; D008969:Molecular Sequence Data; D009154:Mutation; D019906:Nuclear Magnetic Resonance, Biomolecular; D055503:Protein Multimerization; D017433:Protein Structure, Secondary
chemical_list: D000682:Amyloid; D007147:Immunoglobulin Light Chains