RT Journal Article ID 0ddbfe6d576a4b33 A1 Alborés, Silvana A1 Moros, Maria A1 Cerdeiras, María Pía A1 de la Fuente, Jesus Martinez A1 Grazu, Valeria A1 Fraguas, Laura Franco T1 A Lectin Purified from Blood Red Bracket Mushroom, Pycnoporus sanguineus (Agaricomycetidae), Mycelium Displayed Affinity Toward Bovine Transferrin JF International Journal of Medicinal Mushrooms JO IJM YR 2016 FD 2016-03-09 VO 18 IS 1 SP 67 OP 74 K1 medicinal mushrooms K1 lectin K1 Pycnoporus sanguineus K1 purification K1 nanoparticles K1 affinity adsorbent K1 glycoproteins AB Fungal lectins constitute excellent ligands for development of affinity adsorbents useful in affinity chromatography. In this work, a lectin was purified from Pycnoporus sanguineus (PSL) mycelium using 3 procedures: by affinity chromatography, using magnetic galactosyl-nanoparticles or galactose coupled to Sepharose, and by ionic exchange chromatography (IEC). The highest lectin yield was achieved by IEC (55%); SDS-PAGE of PSL showed 2 bands with molecular mass of 68.7 and 55.2 kDa and IEC displayed 2 bands at pi 5.5 and 5.2. The lectin agglutinates rat erythrocytes, exhibiting broad specificity toward several monosaccharides, including galactose. The agglutination was also inhibited by the glycoproteins fetal calf fetuin, bovine lactoferrin, bovine transferrin, and horseradish peroxidase. The lectin was then used to synthesize an affinity adsorbent (PSL-Sepharose) and the interaction with glycoproteins was evaluated by analyzing their chromatographic behaviors. The strongest interaction with the PSL-derivative was observed with transferrin, although lower interactions were also displayed toward fetuin and lactoferrin. These results indicate that the purified PSL constitutes an interesting ligand for the design of affinity adsorbents to be used (i.e., in glycoprotein purification). PB Begell House LK https://www.dl.begellhouse.com/journals/708ae68d64b17c52,33df00905b660ea5,0ddbfe6d576a4b33.html