XhoI

cloned at nebrecombinanttimesaver 5minincubation tempheat inactivationcpgblue white
Xho-I-cutsite_1
Item# Description List Price Web Price Qty
R0146L XhoI - 25,000 units (20,000 units/ml) $364.00 $327.60 ADD TO CART
R0146S XhoI - 5,000 units (20,000 units/ml) $91.00 $81.90 ADD TO CART
R0146M XhoI - 25,000 units (100,000 units/ml) $364.00 $327.60 ADD TO CART
*On-line ordering is for Canadian customers only. Web pricing is applicable only to orders placed online at www.neb.ca
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Companion Products

Item# Description List Price Web Price Qty
B7204S CutSmart Buffer - 5.0 ml $26.00 $23.40 ADD TO CART
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Categories:
Restriction Endonucleases: T-Z,
Time-Saver™ Qualified Restriction Enzymes
Applications:
Restriction Enzyme Digestion

Description

Product Source

An E. coli strain that carries the XhoI gene from Xanthomonas holcicola (ATCC 13461).

Reagents Supplied

The following reagents are supplied with this product:

Store at (°C)Concentration
CutSmart™ Buffer-2010X

Properties and Usage

Unit Definition

One unit is defined as the amount of enzyme required to digest 1 µg of λ DNA (HindIII digest) fragments in 1 hour at 37°C in a total reaction volume of 50 µl.

Reaction Conditions

1X CutSmart™ Buffer
Incubate at 37°C

1X CutSmart™ Buffer:
50 mM Potassium Acetate
20 mM Tris-acetate
10 mM Magnesium Acetate
100 μg/ml BSA
pH 7.9 @ 25°C

Activity in NEBuffers

NEBuffer 1.1: 75%
NEBuffer 2.1: 100%
NEBuffer 3.1: 100%
CutSmart™ Buffer: 100%

Diluent Compatibility

Storage Temperature

-20°C

Storage Conditions

10 mM Tris-HCl
50 mM KCl
1 mM DTT
0.1 mM EDTA
200 μg/ml BSA
50% Glycerol
pH 7.4 @ 25°C

Heat Inactivation

65°C for 20 min

Methylation Sensitivity

dam methylation: Not Sensitive
dcm methylation: Not Sensitive
CpG Methylation: Impaired

Quality Control

Quality Control Assays

The following Quality Control Tests are performed on each new lot and meet the specifications designated for the product. Individual lot data can be found on the Product Summary Sheet/Datacard or Manual which can be found in the Supporting Documents section of this page.
  • Blue-White Screening (Terminal Integrity):
    A sample of DNA vector linearized with a 10-fold excess of a restriction endonuclease, religated and transformed into an E. coli strain expressing the LacZ beta fragment gene results in less than 1% white colonies.
  • Endonuclease Activity (Nicking):
    The product is tested in a reaction containing a supercoiled DNA substrate. After incubation for 4 hours the percent converted to the nicked form is determined by agarose gel electrophoresis.
  • Exonuclease Activity (Radioactivity Release):
    The product is tested in a reaction containing a radiolabeled mixture of single and double-stranded DNA. After incubation for 4 hours the exonuclease activity is determined by the % release of radioactive nucleotides.
  • Ligation and Recutting (Terminal Integrity):
    After an over-digestion of DNA with a restriction endonuclease the percentage of the DNA fragments ligated with T4 DNA ligase and the percentage that can be recut are determined by agarose gel electrophoresis.
  • Non-Specific DNase Activity (16 hour):
    The product is tested for non-specific nuclease degradation in a reaction containing a DNA substrate. After incubation for 16 hours there is no detectable degradation of the DNA substrate as determined by agarose gel electrophoresis.

Notes

  1. XhoI is an isoschizomer of PaeR7I.

Supporting Documents

Certificate of Analysis

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

Specifications

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]

Material Safety Datasheets

The following is a list of Material Safety Data Sheets (MSDS) that apply to this product to help you use it safely. The following file naming structure is used to name these document files: [Product Name] MSDS. For international versions please contact us at info@neb.com.

Datacards

The Product Summary Sheet, or Data Card, includes details for how to use the product, as well as details of its formulation and quality controls. The following file naming structure is used to name the majority of these document files: [Catalog Number]Datasheet-Lot[Lot Number]. For those product lots not listed below, please contact NEB at info@neb.com or fill out the Technical Support Form for appropriate document.
  1. Why isn't XhoI cutting?
  2. Does XhoI produce commonly used compatible ends?
  3. How does XhoI differ from its isoschizomer, PaeR71?
  4. What is the molecular weight of XhoI?
  5. What is the activity of XhoI at 25°C?
  6. What effect does BSA have on the performance of NEB’s restriction enzymes when included in the new buffers?
  7. Do I have to set-up digests with Time-Saver™ qualified enzymes for 5-15 minutes? Can I digest longer?
  8. How can I access the old NEBuffer Activity Chart?
  9. How can I access the old Double Digest Finder?
  1. Optimizing Restriction Endonuclease Reactions
  2. Double Digest Protocol with Standard Restriction Enzymes