Egg white lysozyme

Xem 1-5 trên 5 kết quả Egg white lysozyme

Báo cáo khoa học: Re-evaluation of intramolecular long-range electron transfer between tyrosine and tryptophan in lysozymes Evidence for the participation of other residues

One-electron oxidation of six different c-type lysozymes from hen egg white, turkey egg white, human milk, horse milk, camel stomach and tortoise was studied by gamma-and pulse-radiolysis.In the first step, one tryptophan side chain is oxidized to indolyl free radical, which is produced quantitatively.As shown already, the indolyl radical subse-quently oxidizes a tyrosine side chain to the phenoxy radical in an intramolecular reaction.However this reaction is not total and its stoichiometry depends on the protein.Rate constants also vary between proteins, from 120Æs )1 to 1000Æs )1 at pH 7.

7p tumor12 20-04-2013 42 2 Download

Báo cáo khoa học: Regional and segmental ﬂexibility of antibodies in interaction with antigens of different size

The interaction of antibodies (Abs) with protein antigens (Ags) of different size, such as hen egg white lysozyme, ovalbumin, and bovine serum albu-min, was examined using analytical ultracentrifugation, electrospray ioniza-tion time-of-flight mass spectrometry, and surface plasmon resonance in order to estimate regional and segmental Ab flexibility.

12p inspiron33 26-03-2013 43 4 Download

Báo cáo khoa học: Role of disulﬁde bonds in goose-type lysozyme

The role of the two disulfide bonds (Cys4–Cys60 and Cys18–Cys29) in the activity and stability of goose-type (G-type) lysozyme was investigated using ostrich egg-white lysozyme as a model. Each of the two disulfide bonds was deleted separately or simultaneously by substituting both Cys residues with either Ser or Ala.

13p media19 06-03-2013 33 3 Download
Báo cáo khoa học: Apo a-lactalbumin and lysozyme are colocalized in their subsequently formed spherical supramolecular assembly

We have reported previously that the calcium-depleted form of bovine a-lactalbumin (apoa-LA) interacts with hen egg-white lysozyme (LYS) to form spherical supramolecular structures. These supramolecular structures contain an equimolar ratio of the two proteins. We further explore here the organization of these structures.

9p media19 05-03-2013 43 2 Download
báo cáo khoa hoc : Ester-linked hen egg white lysozyme shows a compact fold in a molecular dynamics simulation – possible causes and sensitivity of experimentally observable quantities to structural changes maintaining this compact fold

Prediction and understanding of the folding and stability of the 3D struc-ture of proteins is still a challenge. The different atomic interactions, such as non polar contacts and hydrogen bonding, are known but their exact relative weights and roles when contributing to protein folding and stability are not identified.

17p cosis54 08-12-2012 43 2 Download