HYDRAGEL 5 PROTEINURIE 

Proteinuria investigation for renal disease classification

Test presentation

Protein electrophoresis is a well-established technique for proteinuria screening. The HYDRAGEL 5 PROTEINURIE kit separates urine proteins according to their molecular weight on the HYDRASYS instrument.

The semi-automated HYDRASYS instrument allows migration and staining of the agarose gels, in order to obtain protein profiles for qualitative analysis. The resulting electrophoretic pattern is visually inspected and compared to molecular weight protein markers to characterize proteinuria.

This test allows the screening of the Bence Jones protein.

 

Test principle

HYDRAGEL 5 PROTEINURIE separates proteins according to their molecular weight in a sieving agarose media after their treatment by an anionic detergent (SDS: Sodium Dodecyl Sulfate). The procedural parameters and sensitivity of the acid violet stain allows the detection of proteins in neat urines; no pre-analytical concentration required.

On HYDRAGEL 5 PROTEINURIE gels, the individual proteins of tubular origin (i.e., molecular weight < 65 - 70 kDa) and of glomerular origin (i.e., > 65 - 70 kDa) are clearly separated. Therefore, proteinuria can be characterized and classified according to the proteins’ molecular weight (e.g., glomerular, tubular and mixed).

The proteins are separated according to their molecular weight. The most current fractions that can be visualized are:

  • ß2 Microglobulin (12 kDa)
  • Lysozyme (15 kDa)
  • RBP (21 kDa)
  • Free  Light  Chains (≈25 kDa)
  • α1 Microprotein (33 kDa)
  • Dimers of  Free  Light  Chains (≈50 kDa)
  • Transferrin (80 kDa)
  • IgG/IgA (150-160 kDa)
  • Haptoglobins
  • α2 Macroglobulin/IgM (800-900 kDa)

Performances

Sensitivity: 

  • The detection level was determined with albumin and lysozyme solutions giving discernible bands at 15 mg/L. 

Kit description

HYDRAGEL 5 PROTEINURIE kit: 10 gels of 5 tests

  • HYDRAGEL 5 PROTEINURIE (PN 4115)

Kit content:

  • Agarose gels
  • Buffered strips
  • Acid violet stain
  • Ready to use diluent
  • Filter paper strips

Related products and accessories not provided in the kit:

  • Molecular weight control: Molecular mass control (PN 4781)
  • HYDRASYS universal gel holder for half-gels (PN 1278)
  • Destaining solution (PN 4540)
  • HYDRASYS wash solution (PN 4541)

Storage solution: 15% glycerin solution in distilled or deionized water (not supplied by Sebia).

Compatible Instruments

HYDRASYS

HYDRASYS FOCUSING

HYDRASYS 2

HYDRASYS 2 SCAN

HYDRASYS 2 FOCUSING

HYDRASYS 2 SCAN FOCUSING

NOTE: Contact your Sebia representative to verify the product availability in your country.