The NMR solution structures at different levels of refinement of three different 2 S albumin seed proteins, the recombinant pronapin precursor from Brassica napus, the recombinant RicC3 from Ricinus communis and the methionine-rich protein from sunflower ( Helianthus annuus ), are described. The resulting common structure consists of a bundle of five alpha-helices, folded in a right-handed supe...

The ovalbumins of chickens, turkeys, guinea-hens, ducks, and geese show varying immunological similarities, although it is possible to distinguish the five albumins with selected sera against chicken ovalbumin (1). Furthermore, mixtures of two albumins, such as guinea-hen and duck ovalbumin, can be clearly distinguished electrophoretically (2). Marked specificities are shown by the electrophore...

The amino-terminal fragment, comprising the tist 24 residues, has been isolated from rat and human serum albumins after limited peptic digestion. The complete sequence of each fragment has been deduced from the tryptic peptides alone by taking advantage of overlapping peptides resulting from incomplete cleavage. A comparison of the structure of the (l-24) peptides of rat and human albumins with...

Albumin and globulin fractions of Indian bean seeds exhibit different mobilization patterns during the 8-day germination period. The albumin degradation was lesser in the early stage and reached a maximum in the later stages of germination. However, the globulins were degraded steadily from the start of imbibition. The influence of the embryonic axis on albumin and globulin degradation was also...

To assess the significance of macromolecular sequence differences among species, we compared the serum albumins of 81 pairs of vertebrate species capable of producing viable hybrids. Micro-complement fixation experiments showed that the average difference between the albumins within such pairs was only 3 immunological distance units for placental mammals (31 pairs), but 36 units for frogs (50 p...

Water-soluble fluorescent colloidal quantum dots (QDs) have been widely used in some biological and biomedical fields, so the interaction of QDs with biomolecules recently attracts increasing attention. In this paper, CdTe quantum dots modified by a natural biopolymer based on polyacrylamide (PAAm) grafted onto sodium alginate (Alg-g-PAAm) were synthesized in an aqueous solution. Then, the bind...