PNGase F PRIME Glycosidase

More Glycan Groups

Specifically remove oligosaccharides from proteins

PNGase F PRIME is a mutant recombinant PNGase F cloned from Flavobacterium meningosepticum and expressed and purified from E. coli. The proprietary changes made to PNGase F have been shown to have unique characteristics when compared to other commercially-available sources of PNGase F. Data generated by independent labs shows that PRIME works on native glycoproteins and serum glycoproteins in minutes at room temperature. Glycan analysis of the digestion products shows that PNGase F PRIME digestion led to more complete glycan release and also allowed for the cleavage of glycans not released by the commercially-available enzymes when used at the same concentrations with the same digestion conditions. This advancement benefits applications that seek to understand glycobiology in a natural milieu. Preliminary data indicates that PNGase F PRIME has a higher specificity towards complex (tri and tetra-antennary) sialylated structures compared to the commercially sourced enzyme. Additionally, the work presented in this Analytical Chemistry paper utilized PNGase F PRIME for all in situ tissue work as the commercially-available PNGase enzymes did not work on native tissue to allow glycan recognition.





 

 

PNGase F Prime Specificity



LITERATURE
User Protocol
Publication - MALDI IMS
 

MALDI-IMS Analysis of a Mouse Brain Slice

PNGase Treated Sample on Mass Spec

 

The three starred oligosaccharide groups in the mass spec trace to the right are color coded and overlayed on a mouse brain section. The distribution shows a distinct localization pattern.

 

 

 

 

 

 

 

 

 

 

Peak-a-boo we see you

Analysis by mass spectrometry is when PRIME truly shines. Traditional PNGase provides fewer and blunted peaks as compared with PRIME. In nearly every side-by-side study to date, PNGase F PRIME produces favorable results. For example, native Avastin® (IgG1 based therapeutic for cancers) treated with PRIME releases 11 different oligosaccharides structures (only a subset of data shown below).

 

Avastin treated with PNGase F PRIME

 

In another example, when compared with a very popular PNGase F, PRIME produced 33% more peaks, sharper peaks and with much lower background when cleaving the native form of the blood borne glycoprotein fetuin.

Fetuin treated with PNGase F PRIME

 

The same treatments show marked differences even by HPLC analysis. PNGase F PRIME (in blue) shows more pronounced peaks than the same competing PNGase F (in black). Also note the additional peaks in both the neutral and sialylated regions, particularly the trisialo region.

 

PNGase F PRIME HPLC Analysis

 

This type of richer data presents the opportunity to develop a deeper, more complete, understanding of glycobiology.

 

 

SPECIFICATIONS
Part Numbers NZPP050
Target Asparagine-linked (N-linked) oligosaccharides (mannose, hybrid, and complex)
Compatible Glycoprotein Native and denatured
Source of PNGase F Prime Recombinant, E. coli
Total Protocol Length 30 minutes to 24 hours
Typical Yield 1 unit will catalyze the deglycosolation of 1 nanomole of detantured Ribonuclease B (RNase B) in 30 minutes at 37°C. 1 Unit = 1 IUB milliunit.
Concentration 500,000 units/ml
Purity ≥95% as determined by SDS PAGE
Contains Glycerol No
Compatible with Mass Spec Yes
Affinity tag for purifcation Yes. PNGase F Prime contains a His-tag.
Reaction Conditions In vitro and in situ
Storage -20°C or 4°C (avoid multiple freeze-thaws)
Shelf Life 1 year
Microbe Free Yes, lot tested


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