Product Class: Other

HpaII Methyltransferase
Gray property icon for rCutSmart Gray property icon for cloned at NEB recombinant Gray property icon for incubation temperature 37° Gray property icon for heat inactivation 65° Gray property icon for SAM

We are excited to announce that all reaction buffers are now BSA-free. NEB began switching our BSA-containing reaction buffers in April 2021 to buffers containing Recombinant Albumin (rAlbumin) for restriction enzymes and some DNA modifying enzymes. Find more details at www.neb.com/BSA-free.

m0214HpaII_thumb

Product Introduction

HpaII Methyltransferase recognizes the same sequence as the MspI Methyltransferase, but modifies the internal cytosine residue (C5) of the sequence CCGG.

Bioz Badge Exists : True
Catalog # Size Concentration
M0214S 100 units 4000 units/ml

Product Information

Description

Product Source

An E. coli strain that carries the cloned HpaII modification gene from Haemophilus parainfluenzae (ATCC 49669).
This product is related to the following categories:
Methyltransferases for Epigenetics,
Base Modifying Enzymes,

Reagents Supplied

Reagents Supplied

The following reagents are supplied with this product:

NEB # Component Name Component # Stored at (°C) Amount Concentration

Properties & Usage

Unit Definition

One unit is defined as the amount of enzyme required to protect 1 μg λ DNA in 1 hour at 37°C in a total reaction volume of 10 μl against cleavage by HpaII restriction endonuclease.

Reaction Conditions

1X rCutSmart™ Buffer
Supplement with 640 µM S-adenosylmethionine (SAM)
Incubate at 37°C

1X rCutSmart™ Buffer
50 mM Potassium Acetate
20 mM Tris-acetate
10 mM Magnesium Acetate
100 µg/ml Recombinant Albumin
(pH 7.9 @ 25°C)

Control Protection Assay

One unit of HpaII Methyltransferase is incubated with 1 µg of λ DNA in 10 µl 1X rCutSmart Buffer, supplemented with 640 µM S-adenosylmethionine, for one hour at 37°C followed by 15 minutes inactivation at 65°C. The extent of protection by HpaII Methyltransferase is determined by the addition of 10 units of HpaII restriction endonuclease in 40 µl 1X rCutSmart Buffer followed by incubation at 37°C for one hour. Results are analyzed on agarose gel.

Storage Buffer

50 mM Tris-HCl
150 mM NaCl
0.1 mM EDTA
5 mM TCEP
200 µg/ml BSA
50% Glycerol
pH 7.5 @ 25°C

Heat Inactivation

65°C for 15 minutes

Molecular Weight

Theoretical: 40397 daltons

References

  1. Hoffman, J.L. (1986). Biochemistry. 25, 4444-4449.

FAQs & Troubleshooting

FAQs

  1. Is S-adenosylmethionine (SAM) supplied with the Methyltransferase?
  2. What should be considered if the methylation is not going to completion?
  3. Can HpaII Methyltransferase be heat inactivated?
  4. Does HpaII Methyltransferase require MgCl2?
  5. What is the molecular weight of HpaII Methyltransferase?
  6. Can HpaII methylated DNA be used to transform E. coli?
  7. Will any NEB methyltransferases (methylases) work on RNA?
  8. Can you tell me more about the switch from BSA to Recombinant Albumin (rAlbumin) in NEBuffers?

Quality, Safety & Legal

Quality Assurance Statement

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.

Specification Change Notifications

Effective December 2, 2025, shelf life extended to 24 months.

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]

Certificate Of Analysis

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]

Safety DataSheets

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

Legal and Disclaimers

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.

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