Accurate molecular weight estimation is fundamental to protein electrophoresis and Western blotting success. Bio Basic Asia Pacific provides a premium selection of pre-stained and unstained protein ladders covering a wide range from 1.7kDa to 250kDa. Our BlueRedGreen multicolor markers offer vivid, high-intensity reference bands for real-time tracking of gel migration and efficient transfer monitoring during electroblotting. Certified for sharp band definition and consistent lot-to-lot performance, our ready-to-use ladders eliminate the need for pre-mixing or boiling, ensuring maximum experimental efficiency for life science research in Singapore.

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Image Product Name Short Description
1.7kDa – 40kDa Pre-stained Protein Ladder

1.7kDa – 40kDa Pre-stained Protein Ladder
  • Product Code(s):
    PMK301
  • Size Range: 1.7kDa – 40kDa
  • Storage:
    –20°C

 

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10kDa – 200kDa Wide Range Protein Molecular Weight Marker, Unstained

10kDa – 200kDa Wide Range Protein Molecular Weight Marker, Unstained
  • Product Code(s):
    BSM0661
  • Size Range: 10kDa – 200kDa
  • Storage:
    –20°C
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10kDa – 250kDa Wide Range BlueRedGreen Three Color Prestained Protein Ladder

10kDa – 250kDa Wide Range BlueRedGreen Three Color Prestained Protein Ladder
  • Product Code(s):
    BZ0011G
  • Size Range: 10kDa – 250kDa
  • Storage:
    –20°C
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Performing genomic and proteomic analysis? View our collection of DNA Ladders, providing sharp, ready-to-load markers for precise fragment sizing on agarose gels.

FAQs

1. When should I use a pre-stained protein ladder vs. an unstained one?

Pre-stained ladders are ideal for monitoring protein migration in real-time and verifying transfer efficiency during Western blotting. Unstained ladders are preferred for precise molecular weight determination, as they produce sharper bands and are not subject to the slight migration shifts caused by bound dyes.

Yes, our protein markers are supplied in a ready-to-use format, pre-mixed with loading buffer and reducing agents. No additional boiling or dilution is required before loading onto your SDS-PAGE gel.

Multicolor ladders (e.g., our BlueRedGreen three-color ladder) use distinct colored reference bands at specific molecular weights to allow for rapid, error-free identification of your target proteins on both the gel and the membrane.

For long-term stability, protein ladders should be stored at –20°C, where they are typically stable for up to one year. To maintain band sharpness, we recommend aliquoting the marker into single-use tubes to avoid repeated freeze-thaw cycles.

Absolutely. All our pre-stained ladders are compatible with Western blotting and are excellent for confirming that proteins have successfully transferred to PVDF or NC membranes.