Simplified sodium dodecyl sulfate-polyacrylamide gel electrophoresis of unconcentrated urine with enhanced resolution and detection sensitivity.
نویسندگان
چکیده
We applied a simple sodium dodecyl sulfate-polyacrylamide gel electrophoresis method to urine. The method, developed for serum protein analysis (Clin Chem 1984;30:475-9), has a high sample throughput and gives excellent resolution with unconcentrated urine. It clearly distinguishes and characterizes proteinuric urine (7.5 microL) by Coomassie Blue staining and gives complex silver-stained patterns with nonproteinuric urine (2 microL). The former is recommended for routine clinical screening, the latter for research purposes.
منابع مشابه
Separation and identification of urinary proteins and stone-matrix proteins by mini-slab sodium dodecyl sulfate-polyacrylamide gel electrophoresis.
Mini-slab electrophoresis on sodium dodecyl sulfate/polyacrylamide gel can be used to detect protein in unconcentrated urines containing more than 100 mg of protein per liter. Several urinary proteins--including albumin, transferrin, and the Tamm-Horsfall mucoprotein--precipitate, partly or totally, if urine samples are stored at 4 degrees C for one or two days. The present procedure permits id...
متن کاملRestricted electrophoretic heterogeneity of immunoglobulin light chains in urine: a cause for confusion with Bence Jones protein.
The detection of Bence Jones protein, an important part of the investigation of suspected myeloma, is most commonly done by agarose or cellulose nitrate electrophoresis followed by immunofixation. Bence Jones protein is recognized as single or multiple bands of one type of light chain. Unfortunately, improvements in sensitivity of these techniques (use of high-affinity antisera and higher resol...
متن کاملSodium dodecyl sulfate-glycerol polyacrylamide slab gel electrophoresis for the resolution of apolipoproteins.
We describe the resolution of the plasma apolipoproteins with molecular weights from 8,800 to greater than 550,000, using a 3.5% sodium dodecyl sulfate-glycerol polyacrylamide slab gel system. The simplicity of this system and the resolution of proteins over a broad range of molecular weights will make it particularly useful in investigations of apolipoprotein composition of plasma lipoproteins.
متن کاملRapid protein separations in ultra-short microchannels: microchip sodium dodecyl sulfate-polyacrylamide gel electrophoresis and isoelectric focusing.
We have developed novel protein gel electrophoresis techniques, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and isoelectric focusing (IEF) in short microchannels (approximately millimeters) that take less than a minute. A photopatterning technique was used to cast in situ crosslinked polyacrylamide gel in a microchannel to perform SDS-PAGE. A fluorescent protein marker ...
متن کاملPurification and properties of arylsulfatase. A from human urine.
Arylsulfatase A (cerebroside sulfate sulfohydrolase) was purified 3500-fold at a 7% yield from human urine. A crude urinary protein concentrate was prepared by treating pooled urine with ammonium sulfate and subsequently drying the precipitate with acetone. The powder thus obtained was extracted with buffer and was subjected to chromatographic and electrophoretic procedures as follows: (a) ammo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Clinical chemistry
دوره 33 10 شماره
صفحات -
تاریخ انتشار 1987