P1253
Phosvitin aus Eigelb
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Allgemeine Beschreibung
Phosvitin from egg yolk is a polyanionic phosphoserine rich protein. This phosphoglycoprotein comprises α-helices and β-sheets structural elements, which are poorly organized due to the presence of phosphoserine. It represents about 11% of yolk proteins and is hydrophilic.
Anwendung
Phosvitin from egg yolk has been used:
- as a control protein for immobilization on-chip for deep purple protein staining methods for monitoring post-translation modifications
- as a substrate for casein kinase Iε in in vitro casein kinase assay
- as a standard in gel filtration chromatography (GFC) and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) for quantification of phosvitin from egg extracts
- for immobilization onto Layer-by-Layer (LbL) for Fourier transform infrared spectroscopy-attenuated total reflectance (FTIR-ATR) studies
Biochem./physiol. Wirkung
Phosvitin fed to rats by adding egg yolk to their food resulted in decreased absorption of magnesium, iron and calcium but not of phosphorus.
Phosvitin from egg yolk is a calcium chelator and binds to iron present in the yolk. The metal-binding functionality is exploited in mineral-binding bioactive peptide production. It is a nutraceutical and has potential for phosphopeptides production.
Sonstige Hinweise
A phosophoprotein containing 8-10% phosphorus. Molar N/P ratio approx. 2.7.
Lagerklassenschlüssel
11 - Combustible Solids
WGK
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves, type N95 (US)
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K Abdelkebir et al.
Acta biomaterialia, 8(9), 3419-3428 (2012-06-12)
Carboxylated, sulfated and/or phosphorylated surfaces are admitted as potential optimal templates for biomimetic deposition of calcium phosphate (CaP) coatings in view of improving implants' osseointegration. Layer-by-layer films were built up consisting of anionic chondroitin sulfate (ChS), a biological carboxylated and
Xiaowei Zhang et al.
Journal of separation science, 34(22), 3295-3301 (2011-10-15)
An attempt was made to develop a new protocol for preparing phosvitin that could be easy scaled up using polyethylene glycol (PEG6000). Influence of PEG6000 concentration and pH of sample solution on phosvitin isolation was investigated. Phosvitin of high purity
Jun Sun et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 915-916, 33-38 (2013-01-15)
Functional immobilized metal affinity magnetic carboxymethyl chitosan nanoparticles (abbreviated as Fe(3)O(4) (PEG+CM-CTS) @ Fe (III)) were conveniently applied for phosvitin phosphopeptides (PPPs) enrichment for the first time. The morphology of magnetic nanoparticles was observed by transmission electron microscope (TEM). It
Khalil Abdelkebir et al.
Langmuir : the ACS journal of surfaces and colloids, 27(23), 14370-14379 (2011-10-20)
Layer-by-Layer (LbL) coatings are promising tools for the biofunctionalization of biomaterials, as they allow stress-free immobilization of proteins. Here, we explore the possibility to immobilize phosvitin, a highly phosphorylated protein viewed as a model of bone phosphoproteins and, as such
Shaohui Wang et al.
The Journal of biological chemistry, 286(25), 22653-22664 (2011-05-03)
How fish embryos that develop externally survive microbial attacks is poorly understood. Here, we clearly demonstrated that the embryo extract of zebrafish and its early embryo both displayed antimicrobial activity against microbes, including pathogenic Aeromonas hydrophila, and phosvitin (Pv), a
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