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Home > Proteins & Peptides
Natural and recombinant proteins purified from bacteria (such as E. coli, B. subtilis), yeast (such as S. cerevisiae), baculovirus/insect, mammalian cells (such as CHO cell lines), and cell-free systems.
    4049 Proteins & Peptides Products
  • BP4200: Recombinant Dr. Nuclease (Benzonase Nuclease Alternative)

    Source: E. coli-derived.
    Specific activity: ≥1.75 x 10^6 U/mg. One unit of Dr. Nuclease corresponds approximately to the required amount of enzyme to digest 37 μg of DNA in the reaction buffer, 50 mM Tris-HCl, pH 8.0, 1 mM MgCl2, for 30 minutes at 37°C.
    Purity >98% by SDS-PAGE.

     

    BP4200-GMP: Recombinant Dr. Nuclease (Benzonase Nuclease Alternative), GMP Grade

     

    Source: E. coli-derived.
    Predicted molecular mass: ~28 kDa.
    Specific activity: ≥1.75 x 10^6 U/mg. One unit of Dr. Nuclease is defined as the amount of enzyme required to produce a change in absorbance at 260nm of 1.0 in the time of 30 minutes, under optimum conditions with excess substrate.
    Purity: ≥95% by SDS-PAGE and ≥99% by SEC-HPLC. It does not contain any antimicrobial preservatives or protein stabilizers except glycerol (of synthetic origin).
    Formulation: 0.2 μM filtered solution (250 units/ul) of 20 mM Tris-HCl, pH 8.0, 2 mM MgCl2, 2 mM NaCl, 50% Glycerol.
    Endotoxin level: ≤0.01 EU/1000 units following 2020 ChP 1143 USP <85>.
    Protease activity: No detectable protease activity using casein as substrate.
    Residual host cell protein: ≤10.0 ppm by ELISA.
    Mycoplasma: negative by qPCR method.
    Bioburden: negative following 2020 ChP 1105 USP <61>.
    Residual heavy metal: ≤10.0 ppm following 2020 ChP 0821 USP <32>.

  • BP4200: Recombinant Dr. Nuclease (Benzonase Nuclease Alternative)

    Source: E. coli-derived.
    Specific activity: ≥1.75 x 10^6 U/mg. One unit of Dr. Nuclease corresponds approximately to the required amount of enzyme to digest 37 μg of DNA in the reaction buffer, 50 mM Tris-HCl, pH 8.0, 1 mM MgCl2, for 30 minutes at 37°C.
    Purity >98% by SDS-PAGE.

     

    BP4200-GMP: Recombinant Dr. Nuclease (Benzonase Nuclease Alternative), GMP Grade

     

    Source: E. coli-derived.
    Predicted molecular mass: ~28 kDa.
    Specific activity: ≥1.75 x 10^6 U/mg. One unit of Dr. Nuclease is defined as the amount of enzyme required to produce a change in absorbance at 260nm of 1.0 in the time of 30 minutes, under optimum conditions with excess substrate.
    Purity: ≥95% by SDS-PAGE and ≥99% by SEC-HPLC. It does not contain any antimicrobial preservatives or protein stabilizers except glycerol (of synthetic origin).
    Formulation: 0.2 μM filtered solution (250 units/ul) of 20 mM Tris-HCl, pH 8.0, 2 mM MgCl2, 2 mM NaCl, 50% Glycerol.
    Endotoxin level: ≤0.01 EU/1000 units following 2020 ChP 1143 USP <85>.
    Protease activity: No detectable protease activity using casein as substrate.
    Residual host cell protein: ≤10.0 ppm by ELISA.
    Mycoplasma: negative by qPCR method.
    Bioburden: negative following 2020 ChP 1105 USP <61>.
    Residual heavy metal: ≤10.0 ppm following 2020 ChP 0821 USP <32>.

  • BP004000: Recombinant Human Laminin 521 Protein (Research Grade)

    Source: mammalian cell-derived.
    Applications: for a wide range of cells, from human iPSCs and MSCs to most anchorage-dependent progenitor cell types; compatible with a variety of feeder-free stem cell culture media on the market; maintaining the homogeneous growth and karyotype stability of stem cells.
    Purity: >95% by SDS-PAGE under reducing conditions.
    Endotoxin Level: Less than 10 EU/mg of protein as determined by LAL method.

     

    BP004000.CG: Recombinant Human Laminin 521 Protein (Preclinical Grade)

    Source: mammalian cell-derived.
    Applications: for a wide range of cells, from human iPSCs and MSCs to most anchorage-dependent progenitor cell types; compatible with a variety of feeder-free stem cell culture media on the market; maintaining the homogeneous growth and karyotype stability of stem cells.
    Purity: >95% by SDS-PAGE under reducing conditions.
    Endotoxin Level: Less than 10 EU/mg of protein as determined by LAL method.
    Animal component free: No materials of animal origin; free of TSE/BSE.

     

  • MB112: Proteinase K Solution, PCR Grade

    Proteinase K is commonly used for protein digestion, DNA extraction, RNA purification, direct PCR, and genotyping. The recombinant proteinase K enzyme is a mutant to the native protease, which gains higher specific activity and yield as well as wider pH and temperature range . The large scale recombinant enzyme production has advantage in lot-to-lot consistency, superior purity and cost-efficiency. DNA-free nature of recombinant Proteinase K made it well-suited in isolating PCR and RT-PCR templates.
    High purity: Each lot of the recombinant proteinase K solution (molecular biology grade, PCR grade, NGS grade, chip grade, and RNA grade) was tested to ensure the absence of DNases and RNases, and free of DNA.
    The cheapest proteinase K solution in the market.
    Specific activity:  ≥ 780 units/ml.

  • MB111: Proteinase K Powder

    Proteinase K is commonly used for protein digestion, DNA extraction, RNA purification, direct PCR, and genotyping. The recombinant proteinase K enzyme is a mutant to the native protease, which gains higher specific activity and yield as well as wider pH and temperature range . The large scale recombinant preparation has advantage in lot-to-lot consistency, superior purity and cost-efficiency. DNA-free nature of recombinant Proteinase K made it well-suited in isolating PCR and RT-PCR templates.
    High purity: >99.5% by reducing SDS-PAGE. Each lot of the proteinase K powder was tested to ensure the absence of Nucleases and DNA. It can be used to make molecular biology grade proteinase K solution, PCR grade proteinase K solution, NGS grade proteinase K solution, CHIP grade proteinase K solution, and so on.
    Specific activity: ≥ 34 units/mg of protein.
    The lowest proteinase K price in the market.

  • BP004089-GD29: Recombinant PNGase F Enzyme (glycerol free)

    Source: E.coli-derived.
    Unit Definition: One unit of the PNGase F enzyme catalyzes the release of >95% N-linked glycan from 10 ug of denatured RNase B in 10 ul at pH 7.5 in 1 hour at 37°C. One Syd Labs unit of PNGase F activity is equal to 0.015 IUB milliunit.
    Purity: > 95% by SDS-PAGE and SEC-HPLC.

  • BP003056: Recombinant SARS-CoV-2 Spike S1-Fc-Avi Protein (S Protein S1 Subunit)

    Source: mammalian cells.
    Activity: Immobilized recombinant human ACE2, His Tag at 0.5 ug/ml (100 ul/well). Dose response curve for the recombinant SARS-CoV-2 Spike S1-Fc-Avi protein with the EC50 of 0.1 ug/ml determined by ELISA.
    Purity: > 95% by PAGE under reduced condition, and SEC-HPLC.

  • BP003050: Recombinant SARS-CoV-2 Spike RBD-Fc-Avi (S Protein)

    Source: mammalian cells.
    Purity: > 95% by PAGE under reduced condition, and SEC-HPLC.

  • BP003053: Recombinant SARS-CoV-2 Nucleocapsid Protein-His-Avi (NP Protein, N Protein)

    Source: E.coli.
    Purity: > 95% by PAGE under reduced condition.

  • BP003052: Recombinant SARS-CoV-2 Spike RBD-His-Avi

    Source: mammalian cells.
    Purity: > 95% by PAGE under reduced condition, and SEC-HPLC.

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