TY - JOUR
T1 - Generic Structures of Cytotoxic Liprotides
T2 - Nano-Sized Complexes with Oleic Acid Cores and Shells of Disordered Proteins
AU - Kaspersen, Jørn D
AU - Pedersen, Jannik N
AU - Hansted, Jon G
AU - Nielsen, Søren B
AU - Sakthivel, Srinivasan
AU - Wilhelm, Kristina
AU - Nemashkalova, Ekaterina L
AU - Permyakov, Sergei E
AU - Permyakov, Eugene A
AU - Pinto Oliveira, Cristiano Luis
AU - Morozova-Roche, Ludmilla A
AU - Otzen, Daniel
AU - Pedersen, Jan Skov
N1 - © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2014/12
Y1 - 2014/12
N2 - The cytotoxic complex formed between α-lactalbumin and oleic acid (OA) has inspired many studies on protein-fatty acid complexes, but structural insight remains sparse. After having used small-angle X-ray scattering (SAXS) to obtain structural information, we present a new, generic structural model of cytotoxic protein-oleic acid complexes, which we have termed liprotides (lipids and partially denatured proteins). Twelve liprotides formed from seven structurally unrelated proteins and prepared by different procedures all displayed core-shell structures, each with a micellar OA core and a shell consisting of flexible, partially unfolded protein, which stabilizes the OA micelle. The common structure explains similar effects exerted on cells by different liprotides and is consistent with a cargo off-loading of the OA into cell membranes.
AB - The cytotoxic complex formed between α-lactalbumin and oleic acid (OA) has inspired many studies on protein-fatty acid complexes, but structural insight remains sparse. After having used small-angle X-ray scattering (SAXS) to obtain structural information, we present a new, generic structural model of cytotoxic protein-oleic acid complexes, which we have termed liprotides (lipids and partially denatured proteins). Twelve liprotides formed from seven structurally unrelated proteins and prepared by different procedures all displayed core-shell structures, each with a micellar OA core and a shell consisting of flexible, partially unfolded protein, which stabilizes the OA micelle. The common structure explains similar effects exerted on cells by different liprotides and is consistent with a cargo off-loading of the OA into cell membranes.
U2 - 10.1002/cbic.201402407
DO - 10.1002/cbic.201402407
M3 - Journal article
C2 - 25403886
SN - 1439-4227
VL - 10
SP - 2693
EP - 2702
JO - ChemBioChem
JF - ChemBioChem
IS - 18
ER -