Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) is a universally used method for determining approximate molecular weight (MW) in protein research. Migration of protein that does not correlate with formula MW, termed "gel shifting" appears to be common for histidine-rich proteins but not yet studied in detail. We investigated "gel shifting" in Ni2+-binding histidine-rich H...

Twenty-three control samples of CSF were analyzed by vertical column electrophoresis on acrylamide gel. Quantitation results using a microdensitometer are presented. The normal protein pattern shows 15 constant bands which coincide in mobility and in many cases in staining pattern with serum proteins. The haptoglobin peaks, except for the band of the 1-1 type and the leading band of the 2-1 typ...

In current theories of polyacrylamide gel electrophoresis, the idea prevails that molecular sieving relies on different accessibility of volume fractions and of cross-sectional area fractions (denoted "pores") to different-sized ions due to the effect of "geometric exclusion". This correlates with the assumption that all elements of a polyacrylamide network occupy fixed and unchangeable positio...

The well characterized castor bean (Rhscm is L*) allergens were Identdfied as the low molecular weight albmin storae protein In the matrix of the protein bodles in the edsp mThe metbods of Idetifcatdon involved molecular weight estbition, amino acid compositon, stabilty at 1000 C, sobulity In various solvents, gel elec rs , and Immunological technbques. The fdinig explains the wide distrbution ...

Background and Objectives: Making stacking gels for polyacrylamide gels in the laboratory by conventional methods is laborious and time consuming. Considering the role of temperature in polyacrylamide gels with respect to electrical resistance and viscosity, we assumed that decreasing the temperature would cause an increase in electrical resistance and viscosity.  Ultimately, a downward tempera...

Preparative polyacrylamide gel electrophoresis has been used in the final stages of purification to prepare horse serum cholinesterase which was at least 9.5% pure, as judged by analytical polyacrylamide gel electrophoresis. The starting material, already purified about 109-fold by the Strelitz method, was purified an additional 89-fold by the procedure. The method involved Sephadex G-ZOO and S...

background: detecting bence-jones protein in urine is essential for determining plasma cell dyscrasia and multiple myeloma. conventionally, acid-heat precipitation assay is used for detecting bence-jones protein in most medical laboratories; however, because of the low accuracy of this test, other more sensitive tests like urine electrophoresis are recommended.  materials and methods: in this s...

Currently, there is an interest in novel drug delivery systems, diagnostic capabilities and improving separation of biomacromolecules such as DNA and proteins. One possible approach is to add charged nanoparticles to the polyacrylamide gel electrophoresis system to observe the difference in, for example, protein separation efficiency. Another approach included creating templated pores by polyme...