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Biotinylated Molecular Weight Marker

mol wt 6,500-180,000 Da

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protein markers, protein molecular weight markers, protein standards


lyophilized powder

Quality Level


 vial sufficient for 200 applications (on 10 cm × 10 cm mini gels)

mol wt

6,500-180,000 Da


vial of 0.1 mg protein (also contains 0.1 mg NaCl and 0.1 mg sucrose)

storage temp.


Related Categories


For SDS-PAGE and protein transfer, the Biotinylated Molecular Weight Standard Mixture contains proteins, which have been biotin conjugated for use as SDS-PAGE standards for the estimation of the molecular weights of blotted proteins. Visualization is accomplished using streptavidin-peroxidase (Cat. No. S2438) and a color development reagent such as 4-Chloro-1-naphthol (Cat. No. C8890), eliminating the need to cut out separate lanes for general protein stains and can be performed simultaneously with immunostaining procedures. These standards may be used with either the Laemmli or the Weber and Osborn SDS-PAGE procedures.


This product contains:
  • α2-macroglobulin (equine serum)
  • β-galactosidase (E. coli)
  • phosphorylase b (rabbit muscle)
  • catalase (bovine liver)
  • alcohol dehydrogenase (yeast)
  • carbonic anhydrase (bovine erythrocyte)
  • trypsin inhibitor (soy bean)
  • lysozyme (chicken egg)
  • aprotinin (bovine lung)
Each vial contains approximately 33% protein, 33% NaCl and 33% sucrose.

Other Notes

Contains nine biotinylated proteins (approx 0.1 mg total).


Each vial is reconstituted with 1 mL of 1x sample buffer (Cat. No. S3401) and incubated for 2-3 minutes at 100 °C.

Storage Class

11 - Combustible Solids




Not applicable


Not applicable

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Customers Also Viewed

D Della-Penna et al.
Analytical biochemistry, 152(2), 329-332 (1986-02-01)
Protein molecular weight standards were biotinylated by reaction with biotinyl-N-hydroxysuccinimide ester. The biotinylated proteins were resolved by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and electrophoretically transferred to nitrocellulose paper. The resolved protein bands were detected by formation of a streptavidin-biotin/horseradish peroxidase
The reliability of molecular weight determinations by dodecyl sulfate-polyacrylamide gel electrophoresis.
K Weber et al.
The Journal of biological chemistry, 244(16), 4406-4412 (1969-08-25)
Eduardo L V Silveira et al.
Clinical and vaccine immunology : CVI, 15(8), 1292-1300 (2008-06-27)
Earlier studies have demonstrated in A/Sn mice highly susceptible to Chagas' disease protective immunity against lethal Trypanosoma cruzi infection elicited by vaccination with an open reading frame (ORF) expressed by amastigotes. In our experiments, we used this mouse model to
Cleavage of structural proteins during the assembly of the head of bacteriophage T4.
U K Laemmli
Nature, 227(5259), 680-685 (1970-08-15)

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