Jump to content

  • Log in with Facebook Log in with Twitter Log in with Windows Live Log In with Google      Sign In   
  • Create Account

Submit your paper to J Biol Methods today!
- - - - -

Urine Electrophoresis

  • Please log in to reply
3 replies to this topic

#1 moljul



  • Active Members
  • PipPipPipPipPipPipPipPipPipPip
  • 142 posts

Posted 28 January 2009 - 05:08 AM


is someone out there familiar with electrophoresis of urine, especially urine from mice? can gels be evaluated like gels from human urinary proteins?

hope i would get some recommendations,


#2 oldman



  • Members
  • Pip
  • 2 posts

Posted 30 January 2009 - 07:10 AM

I've never done it, but if you can do it with samples from humans, you can do it with samples from mice.

#3 Gerard



  • Active Members
  • PipPipPipPipPipPipPipPipPipPip
  • 124 posts

Posted 01 February 2009 - 01:53 AM

The problem with the electrophoresis of urine is the concentration of the protein. Mostly you have the concetrate the urine to get a concentration of protein suitable for electroforesis.
It can be done bij concentrators or ultrafiltrationunits, whereby the ultrafiltration has the avantage that also the salt concentration can be lowered if needed.
After concentration it can be handeld as serum but be aware of the possibility that protein in urine can be degraded.
Ockham's razor
Pluralitas non est ponenda sine necessitate
-- "You must assume no plural without necessity".

#4 Zagami Francesco

Zagami Francesco


  • Active Members
  • PipPipPipPipPip
  • 38 posts

Posted 01 July 2017 - 02:05 AM

Non-concentrated human urine protein electrophoresis on agarose gel plate by myself modified


Gel agarose : a) Buffer: dissolve in 500 ml dH2O, 13.6 g/L (0.2 M) imidazole, 20.0 g/L (0.19 M) 2-amino-2-methyl- 1,3-propanediol, 58.0 g/L (0.94 M) boric acid, 0.4 g/L (1.07 mM) Na2-EDTA.2H2O, 1.0 g/L (3.47 mM) sodium dodecyl sulfate, and fill up to 1 liter with dH2O and mix. Aliquot and store at -20 °C; cool.png Agarose gel : melt 0.5 g agarose in 100 ml buffer and stirring in water bath at 70-80 °C until to agarose is completely dissolved. 

Plate agarose gel: to position a glass that covers the whole surface of the superior edge of the water bath and to hold a temperature of the water to 50 °C so that the produced vapor maintains the temperature of the glass between 40 and 45 °C. On the surface of the glass a quadrangular space must be done with edges about 2 mm, in which to will find lodging an hydrophilic plastic sheet, on which, after acclimatization to 40-45 °C, the agarose fluid will be poured so that at the end a thickness between 0.5 and 2.0 mm has it. In each agarose gel plate few slots can be realized, not to all thickness, pre-loading slot, that can be loaded with about 5 µl urine sample.   


Sample urine: 10 ml morning urine is collected, that is centrifuged at 1500 rpm for 5 min. and the proteins present in the sample were measured on supernatant with urine dipstick. If the proteine is greater than 2+, the urine samples has been diluted with saline solution to 1:1, and 5 µl of the sample dilution were dispensed in slot. Supply a tension <to 1.8 Á for 30 mins. Following electrophoresis run, the agarose films were immersed nigrosine stain (dissolve 0.05% [w/v] nigrosine in dH2O), for 10 min and then rinsed in 10% (w/v) acetic acid for approximately 20 min to reduce background staining. Finally the plates were dried in a warm-air oven at 37 °C. As standard marker protein has been used a fluid as urine substitute containing human albumin with an approximate concentration of 1 g/L

Edited by Zagami Francesco, 01 July 2017 - 02:08 AM.

Home - About - Terms of Service - Privacy - Contact Us

©1999-2013 Protocol Online, All rights reserved.