Product Class: Other

PNGase F
Gray property icon for NEBU Gray property icon for cloned at NEB Gray property icon for incubation temperature 37° 75 Heat

Product Introduction

PNGase F is the most effective enzymatic method for removing almost all N-linked oligosaccharides from glycoproteins. PNGase F is an amidase, which cleaves between the innermost GlcNAc and asparagine residues of high mannose, hybrid, and complex oligosaccharides. 

  • Leaves N-glycan core oligosaccharides intact and suitable for further analysis
  • Non-recombinant with no detectable endoglycosidase F1, F2 or F3 contamination
  • ≥ 95% purity, as determined by SDS-PAGE and intact ESI-MS
  • Stored in 50% glycerol
  • Optimal activity and stability for up to 24 months
  • Can be used under native or denaturing conditions
Bioz Badge Exists : True
Catalog # Size Concentration
P0704S 15000 units 500000 units/ml
P0704L 75000 units 500000 units/ml

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Product Information

Description

Peptide -N-Glycosidase F, also known as PNGase F, is an amidase that cleaves between the innermost GlcNAc and asparagine residues of high mannose, hybrid, and complex oligosaccharides from N-linked glycoproteins (1)


Figure 1: Detailed specificity of PNGase F Diagram of detailed specificity of PNGase F 
PNGase F is not able to cleave N-linked glycans from glycoproteins when the innermost GlcNAc residue is linked to an α1-3 Fucose residue. This modification is most commonly found in plant and some insect glycoproteins.

Product Source

PNGase F is purified from Flavobacterium meningosepticum (3) and it is free of proteases and Endo F activities.

Glycosidase Recognition Site

This product is related to the following categories:
Endoglycosidases,
Proteome Analysis,
This product can be used in the following applications:
Expression Systems,
Glycan Sequencing,
Proteomics,
Recombinant Glycoprotein Expression,
Glycoprotein Analysis

Reagents Supplied

Reagents Supplied

The following reagents are supplied with this product:

NEB # Component Name Component # Stored at (°C) Amount Concentration
  • NEB # Stored at (°C)
    P0704S -20
    Component Name Component # Stored at (°C) Amount Concentration
    PNGase F P0704SVIAL -20 1 x 0.03 ml 500,000 units/ml
    GlycoBuffer 2 B3704SVIAL -20 1 x 1 ml 10 X
    Glycoprotein Denaturing Buffer B1704SVIAL -20 1 x 1 ml 10 X
    NP-40 B2704SVIAL -20 1 x 1 ml 10 %
  • NEB # Stored at (°C)
    P0704L -20
    Component Name Component # Stored at (°C) Amount Concentration
    PNGase F P0704LVIAL -20 1 x 0.15 ml 500,000 units/ml
    GlycoBuffer 2 B3704SVIAL -20 1 x 1 ml 10 X
    Glycoprotein Denaturing Buffer B1704SVIAL -20 1 x 1 ml 10 X
    NP-40 B2704SVIAL -20 1 x 1 ml 10 %

Properties & Usage

Unit Definition

One unit is defined as the amount of enzyme required to remove > 95% of the carbohydrate from 10 µg of denatured RNase B in 1 hour at 37°C in a total reaction volume of 10 µl.

Unit Definition Assay:
10 µg of RNase B are denatured with 1X Glycoprotein Denaturing Buffer (0.5% SDS, 40 mM DTT) at 100°C for 10 minutes. After the addition of NP-40 and GlycoBuffer 2, two-fold dilutions of PNGase F are added and the reaction mix is incubated for 1 hour at 37°C. Separation of reaction products are visualized by SDS-PAGE.

1X Glycoprotein Denaturing Buffer
0.5% SDS
40 mM DTT

1X NP-40
1% NP-40 in MilliQ-H2O

Reaction Conditions

1X GlycoBuffer 2
Incubate at 37°C

1X GlycoBuffer 2
50 mM Sodium Phosphate
(pH 7.5 @ 25°C)

Storage Buffer

20 mM Tris-HCl
50 mM NaCl
5 mM EDTA
50% Glycerol
pH 7.5 @ 25°C

Heat Inactivation

75°C for 10 minutes

Molecular Weight

Apparent: 36000 daltons

Application Features

  • Removal of high mannose N-glycans from glycoproteins

Product Notes

  1. Since PNGase F activity is inhibited by SDS, it is essential to have NP-40 present in the reaction mixture. Why this non-ionic detergent counteracts the SDS inhibition is unknown at present.
  2. To deglycosylate a native glycoprotein, longer incubation time as well as more enzyme may be required.
  3. PNGase F will not cleave N-linked glycans containing core α1-3 Fucose.
  4. Typical reaction conditions: Please see Protocols

References

  1. Maley, F. et al. (1989). Anal. Biochem. 180, 195-204.
  2. Tretter, V. et al. (1991). Eur. J. Biochem.. 199, 647-652.
  3. Plummer, T.H. Jr. and Tarentino, A.L. (1991). Glycobiology. 1, 257-263.

Tools & Resources

Selection Charts

FAQs & Troubleshooting

FAQs

  1. Is PNGase F compatible with downstream analysis such as HPLC and Mass Spectrometry?
  2. What happens to the asparagine after PNGase removes the sugar?
  3. Why is my immunoprecipitated (IP) protein degraded? When I denature and add SDS all I see on my SDS-PAGE is a smear or no protein?
  4. What are the typical reaction conditions for PNGase F?
  5. Does PNGase F work in Urea?
  6. How do I inhibit PNGase F?
  7. How much PNGase F should I use to remove my carbohydrate under native conditions?
  8. I tried the PNGase F on my glycoprotein and didn't see removal of the carbohydrate. What could be the problem?
  9. What is the difference between PNGase F, Endo H and O-Glycosidase?
  10. Do detergents inhibit exoglycosidases/endoglycosidases?
  11. Why have the NEB Glycosidase enzymes changed reaction buffers? What are the new reaction buffers and can I still use an enzyme with its old buffer? Where can I find the composition of the old buffers?
  12. What are Glycosidases and their uses?
  13. What is a good endoglycosidase substrate?

Tech Tips

PNGase F
You can use this enzyme under native or denaturing conditions
Under native conditions we recommend adding more enzyme and using longer incubation times
PNGase F activity is inhibited by SDS, therefore under denaturing conditions it is essential to have NP-40 present in the reaction mixture in a 1:1 ratio.
PNGase F will not cleave N-linked glycans containing core a1-3 Fucose (PNGase A must be used in this instance)
Enzyme activity varies at different temperatures: 37°C - 100%; 30°C - 100%; 23°C - 65%; 17°C - 40% and 3°C - 0%
A good positive control substrate is RNase B

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.

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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