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DNA SequencingPlasmid Purification

Six Types of Plasmid Purification Services Tailored to Your Research

Standard Quality Plasmid Purification Service

Transfection Quality Plasmid Purification Service

BAC Plasmid Purification Service

Mega-Size Plasmid Purification Service

Express Plasmid Purification Service

Express Plus Plasmid Purification Service


Comparison between Plasmid Purification Services (pdf)


Services HighLight

Standard Quality Plasmid Purification Service:
This service uses column-based purification method for plasmid less than 20 kb. Plasmid DNA purified by standard grade service typically contains 5 - 10 EU/ug of DNA and is suitable for many applications such as probe synthesis, in vitro RNA synthesis, DNA cloning, DNA sequencing, bacterial and yeast transformation. Restriction digestion with common enzymes is included in this service. Production scale: 1-20 liters. Either plasmid DNA or recombinant bacteria can be submitted for this service.

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Transfection Quality Plasmid Purification Service:
This service uses Qiagen’s Endo-Free plasmid purification method for plasmid less than 20 kb. This service is recommended for endotoxin-critical applications such as transfection of mammalian cells and animal-related experiments. Plasmid DNA purified by transfection grade service typically contains 0.1 EU/ug of DNA. Restriction analysis with common enzymes is included in this service.
Production scale: 1-20 liters. Either plasmid DNA or recombinant bacteria can be submitted for this service.
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BAC Plasmid Purification Service:
This service uses column-based proprietary techniques to purify BAC plasmid DNA. Our proprietary techniques give high yield and high quality plasmid DNA that is suitable for probe synthesis, in vitro RNA synthesis, DNA cloning and DNA sequencing. Plasmid DNA purified by mega grade service typically contains 5 - 10 EU/ug of DNA. Restriction analysis with common enzymes is included in this service. Production scale: 1-20 liters. Only recombinant bacteria are accepted for this service.

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Mega-Size Plasmid Purification Service:
This service uses column-based proprietary techniques to purify plasmid DNA larger than 20 kb including PAC, P1, and Cosmids. Our proprietary techniques give high yield and high quality plasmid DNA that is suitable for probe synthesis, in vitro RNA synthesis, DNA cloning and DNA sequencing. Plasmid DNA purified by mega grade service typically contains 5 - 10 EU/ug of DNA.
Restriction digestion with common enzymes is included in this service. Production scale:1-20 liters. Only recombinant bacteria are accepted for this service.
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Express Plasmid Purification Service:
This low cost, fast turnaround, 250 ml-scale (equals to maxi prep) purification service is tailored for researcher who needs small amount of DNA for their resaerch. The service uses column-based purification method for plasmid less than 20 kb. Plasmid DNA purified by express quality service typically contains 5 - 10 EU/ug of DNA and is suitable for many applications such as probe synthesis, in vitro RNA synthesis, DNA cloning, DNA sequencing, bacterial and yeast transformation.
Restriction analysis is not included in this service. Production scale: 250 ml.

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Express Plus Plasmid Purification Service:
This low cost, fast turnaround, 250 ml-scale (equalsl to maxi prep) purification service is tailored for researcher who needs small amount of DNA for their resaerch. The service uses Qiagen’s Endo-Free column-based purification method for plasmid less than 20 kb. Plasmid DNA purified by Express Plus quality service typically contains 0.1 EU/ug of DNA and is recommended for endotoxin-critical applications such as transfection of mammalian cells and animal-related experiments. Restriction analysis is not included in this service. Production scale: 250 ml.

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Frequently Asked Questions (pdf)

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Service Information (pdf)

Service Request Form (pdf)

Service RequestFform (MSWord)

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