PI-PspI

The following reagents are supplied with this product:

NEB #	Component Name	Component #	Stored at (°C)	Amount	Concentration
R0695S     -20       PI-PspI R0695SVIAL -20 1 x 0.1 ml 5,000 units/ml   Recombinant Albumin, Molecular Biology Grade B9200SVIAL -20 1 x 0.6 ml 20 mg/ml   NEBuffer™ PI-PspI B0695SVIAL -20 1 x 1.5 ml 10 X   pAKR7 XmnI-linearized Control Plasmid N0421SVIAL -20 1 x 0.01 ml 0.5 mg/ml

Materials Sold Separately

• Purified BSA

1. Homing endonucleases do not have stringently-defined recognition sequences in the way that restriction enzymes do. That is, single base changes do not abolish cleavage but reduce its efficiency to variable extents. The precise boundary of required bases is generally not known. The recognition sequence listed is one site that is known to be recognized and cleaved.
2. Digests of DNA embedded in agarose should be performed with 1 unit of enzyme per µg of DNA for 3 hours at 50°C.
3. PI-PspI can remain bound to DNA after cutting and alter migration rate of DNA during electrophoresis. To disrupt binding, add SDS to a final concentration of 0.5% or purify DNA before electrophoresis.
4. Incubation at 37° results in 10% activity.
5. Supplied with plasmid DNA. XmnI-linearized  pAkR7 is supplied at 0.5 mg/ml in 10 mM Tris-HCl (pH 8.0), 1 mM EDTA. Cleavage of this 3.7 kb plasmid gives fragments of 2146 and 1532 base pairs.  
6. For enzymes that cannot be heat-inactivated, we recommend using a column for cleanup (such as the Monarch® PCR & DNA Cleanup Kit), or running the reaction on an agarose gel and then extracting the DNA (we recommend Monarch Gel Extraction Kit), or performing a phenol/chloroform extraction.
7. Supplement with supplied vial of Recombinant Albumin (rAlbumin) to 100 µg/ml.

1. Restriction Digest Protocol
2. Optimizing Restriction Endonuclease Reactions
3. Double Digest Protocol with Standard Restriction Enzymes

• Activity at 37°C for Restriction Enzymes with Alternate Incubation Temperatures
• Activity of Restriction Enzymes in PCR Buffers
• Cleavage Close to the End of DNA Fragments
• Digestion of Agarose-Embedded DNA: Info for Specific Enzymes
• Double Digests
• Heat Inactivation
• NEBuffer Activity/Performance Chart with Restriction Enzymes
• Optimizing Restriction Endonuclease Reactions
• Restriction Endonucleases - Survival in a Reaction
• Restriction Enzyme Diluent Buffer Compatibility
• Restriction Enzyme Tips
• Single Letter Codes
• Star Activity
• Traditional Cloning Quick Guide

• Alphabetized List of Recognition Sequences
• Dam-Dcm and CpG Methylation
• Enzymes with Nonpalindromic Sequences
• Frequencies of Restriction Sites
• Isoelectric Points (pI) for Restriction Enzymes
• Isoschizomers
• NEB Diluent and Buffer Table
• Why Choose Recombinant Enzymes?

• Competitor Cross-Reference Tool
• DNA Sequences and Maps Tool

• Double Digest Finder
• Enzyme Finder
• NEBcutter™ v3.0
• NEBioCalculator®
• REBASE®

1. How can this enzyme be inactivated?
2. Can you tell me more about the switch from BSA to Recombinant Albumin (rAlbumin) in NEBuffers?

• Restriction Enzyme Troubleshooting Guide

Quality Control tests are performed on each new lot of NEB product to meet the specifications designated for it. Specifications and individual lot data from the tests that are performed for this particular product can be found and downloaded on the Product Specification Sheet, Certificate of Analysis, data card or product manual. Further information regarding NEB product quality can be found here.

The Specification sheet is a document that includes the storage temperature, shelf life and the specifications designated for the product. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]

• R0695S_L_v1

The Certificate of Analysis (COA) is a signed document that includes the storage temperature, expiration date and quality controls for an individual lot. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]_[Lot Number]

• R0695S_L_v1_0031302
• R0695S_L_v1_0031306
• R0695S_L_v1_0031309
• R0695S_L_v1_0031312
• R0695S_L_v1_0031406
• R0695S_L_v1_0031409
• R0695S_L_v1_0031504
• R0695S_L_v1_0031510
• R0695S_L_v1_0031604
• R0695S_L_v1_0031611
• R0695S_L_v1_0031708
• R0695S_v1_10007484
• R0695S_v1_10015689
• R0695S_v1_10018184
• R0695S_v1_10019689
• R0695S_v1_10042563
• R0695S_v1_10055570
• R0695S_v1_10060451
• R0695S_v1_10090819
• R0695S_v1_10110861
• R0695S_v1_10127769
• R0695S_v1_10140866
• R0695S_v1_10162459
• R0695S_v1_10189644
• R0695S_v1_10207168
• R0695S_v1_10273880
• R0695S_v1_10309287
• R0695S_v1_10332566

The following is a list of Safety Data Sheet (SDS) that apply to this product to help you use it safely.

• PI-PspI
• Recombinant Albumin, Molecular Biology Grade
• pAKR7 XmnI-linearized Control Plasmid

Products and content are covered by one or more patents, trademarks and/or copyrights owned or controlled by New England Biolabs, Inc (NEB). The use of trademark symbols does not necessarily indicate that the name is trademarked in the country where it is being read; it indicates where the content was originally developed. The use of this product may require the buyer to obtain additional third-party intellectual property rights for certain applications. For more information, please email busdev@neb.com.

This product is intended for research purposes only. This product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

New England Biolabs (NEB) is committed to practicing ethical science – we believe it is our job as researchers to ask the important questions that when answered will help preserve our quality of life and the world that we live in. However, this research should always be done in safe and ethical manner. Learn more.