The present paper reports the purification and biochemical characterization of an albumin identified in mature lentil seeds with high sequence similarity to pea PA2. These proteins are found in many edible seeds and are considered potentially detrimental for human health due to the potential allergenicity and lectin-like activity. Thus, the description of their possible presence in food and the assessment of the molecular properties are relevant. The M r, pI, and N-terminal sequence of this protein have been determined. The work included the study of (i) the binding properties to hemine to assess the presence of hemopexin structural domains and (ii) the binding properties of the protein to thiamin. In addition, the structural changes induced by heating have been evaluated by means of spectroscopic techniques. Denaturation temperature has also been determined. The present work provides new insights about the structural molecular features and the ligand-binding properties and dynamics of this kind of seed albumin.
Biochemical and Functional Characterization of an Albumin Protein Belonging to the Hemopexin Superfamily from Lens culinaris Seeds / A. Scarafoni, E. Gualtieri, A. Barbiroli, A. Carpen, A. Negri, M. Duranti. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 59:17(2011), pp. 9637-9644.
|Titolo:||Biochemical and Functional Characterization of an Albumin Protein Belonging to the Hemopexin Superfamily from Lens culinaris Seeds|
SCARAFONI, ALESSIO (Corresponding)
NEGRI, ARMANDO (Penultimo)
DURANTI, MARCELLO MARIA (Ultimo)
|Parole Chiave:||seed proteins ; PA2 ; thiamin-binding protein ; hemopexin domains|
|Settore Scientifico Disciplinare:||Settore BIO/10 - Biochimica|
|Data di pubblicazione:||2011|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1021/jf202026d|
|Appare nelle tipologie:||01 - Articolo su periodico|