The Invitrogen 1 Kb Plus DNA Ladder is a powerful tool for estimating the molecular weight of linear double-stranded DNA fragments. The 1 Kb Plus DNA Ladder has 12 evenly spaced bands ranging from 1 kb to 12 kb, a quick orientation band at 1,650 bp that forms a distinct doublet with the 2 kb band, and seven bands of round-number sizes below 1 kb. This wide size range is perfect for downstream cloning applications as well as PCR and other molecular biology applications.

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1 Kb Plus Compatibility

The 1 Kb Plus DNA Ladder is compatible with all agarose gels for DNA fragment analysis. The ladder is provided in a purified format without premixed loading buffer.

  • Easy-to-remember band sizes
  • Broad size range (100 bp–12 kb)
  • Formulated specifically for Invitrogen E-Gel EX gels
  • Room temperature–stable for easy storage

The 1 Kb Plus DNA Ladder can be visualized with DNA stains such as Invitrogen SYBR Safe stain, ethidium bromide, or similar DNA stains.  In addition, the 1 Kb Plus DNA Ladder can be radiolabeled using T4 polynucleotide kinase, T4 DNA polymerase, DNA polymerase I, or Klenow fragment, and any radiolabeled dNTP.