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Thermo Scientific™ Single-Stranded DNA Binding Protein (SSB)

Produktkod. 15728328
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Kvantitet:
500 μg
Förpackningsstorlek:
500µg
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15728328 500 μg 500µg
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Produktkod. 15728328 Leverantör Thermo Scientific™ Leverantörsnummer 70032Z500UG

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Beskrivning

With high affinity in a cooperative manner to single-stranded DNA and does not bind well to double-stranded DNA

  • Single-Stranded DNA Binding Protein (SSB) binds with high affinity in a cooperative manner to single-stranded DNA and does not bind well to double-stranded DNA. After binding single-stranded DNA, SSB destabilizes helical duplexes, thereby allowing DNA polymerases to access their substrate more easily. SSB is involved in DNA replication and recombination in vivo. It has also been used to visualize single-stranded DNA by electron microscopy.
  • PCR can be optimized by adding this binding protein to the reaction. SSB can be added to stabilize denatured DNA during PCR experiments, and can serve as an additive to a PCR reaction to protect the ssDNA from being digested by nucleases. SSB has been shown to improve PCR with difficult templates by acting directly, or indirectly, on polymerases by increasing their strand displacement activity and their affinity for the primer-template.
  • SSB has also been used in conjunction with RecA protein for carrying out site-directed mutagenesis and to select sequences from libraries of double-stranded DNA. SSB has been shown to minimize deletion mutagenesis artifacts in PCR products thereby enhancing PCR yield.
  • SSB may also stimulate specific DNA polymerases used in DNA sequencing reactions and has been used to target restriction endonuclease digestions to specific sites in single-stranded DNA for subsequent mutagenesis.
  • SSB has been shown to be effective in fluorescence polarization assays and eliminates pausing when sequencing through strong secondary structure. More recently, SSB was used to help obtain longer read lengths in pyrosequencing for SNP analysis.
  • Consists of four identical 18.9 kDa subunits
  • Isoelectric Point: 6.0
  • Nucleotides Bound Per Monomer: 8-16
  • Thermostability: SSB retains activity after 20 min incubation at 65°C.
  • Greater than 95% pure as determined by SDS-PAGE. Tested for contaminating non-specific endonucleases, exonucleases, and ribonucleases.
  • 50 mM Tris-HCl (pH 7.5), 200 mM NaCl, 0.1 mM EDTA, 1.0 mM DTT, 50% glycerol.
  • Approximately 5 μg of SSB protein is required to prevent optical density change of 1 μg of single-stranded DNA upon addition of 10 mM MgCl2.
  • 5 μg/μL, measured by A280
  • E. coli strain containing an overproducing clone of E. coli SSB protein.
  • Enhancement of DNA polymerase activity
  • Fluorescence polarization assays
  • Allows for longer read lengths in pyrosequencing for SNP analysis
  • Eliminates pausing when sequencing through regions of single and double-stranded DNA with strong secondary structure
  • Improves restriction enzyme digestion
  • Site-directed mutagenesis in conjunction with recA
TRUSTED_SUSTAINABILITY

Specifikationer

Formatera Tube
Kvantitet 500 μg
Källa E. coli
Art E. coli
Innehåll och lagring Shipped on dry ice. Store at -20°C. For long term storage, store at -80°C. Avoid repeated freeze/thaw cycles.
Form Liquid
Protein subtyp DNA Binding Protein
Renhet eller kvalitetsklass >95% by SDS-PAGE

For Research Use Only. Not for use in diagnostic procedures.

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