N-Glycanase®, 1 U [GKE-5006D]

Price:

Description

PNGase F, peptide-N-glycosidase F, peptide-N4-(N-acetyl-β-glucosaminyl)asparagine amidase. Releases intact N-glycans by cleaving between the innermost GlcNAc and Asn. 

Source:
Recombinant gene from Elizabethkingia meningosepticum, expressed in E. coli. The source organism was previously known as Chryseobacterium [Flavobacterium] meningosepticum [1].

Specificity: 
Cleaves all N-linked complex, hybrid or high mannose oligosaccharides, unless α(1-3) core fucosylated, as in plant glycans and some insect glycans. Asparagine must be peptide-bonded at both termini. Phosphate, sulfate and sialic acid groups attached to the oligosaccharide do not affect cleavage. Endo F free. 

 

Figure 1: Cleavage specificity for GKE-5006 N-Glycanase (PNGase F).
R1: N & C substitution other than H
R2: may be H or the rest of an oligosaccharide
R3: may be H or α(1-6)-linked fucose

Applications:

  • Release of intact N-linked glycans from glycopeptides and glycoproteins
  • Structure-function studies of N-glycosylated glycoproteins
  • Preparation of deglycosylated proteins for molecular weight estimation or crystallography studies

Supplied at a concentration of ≥ 2.5 U/ml. For a more concentrated formulation of ≥ 10 U/ml, which may be useful for native digestions, see GKE-5010B or GKE-5020B (EDTA-free).

"D" pack size does not ship with reaction buffers that ship with "A" (100 mU) and "B" (200 mU) pack sizes. Please contact us if you require buffers.

    Formulation:
    20 mM Tris-HCl, 50 mM NaCl, 1 mM EDTA (pH 7.5)

    Reaction Buffer:
    5X concentrated buffer, when diluted gives 20 mM sodium phosphate pH 7.5, containing 0.02% sodium azide.

    MW:
    ~35,000 daltons

    pH optimum/range:
    8.6 / 7.5 - 9.5

    Unit Definition:
    One unit is defined as the amount of enzyme required to catalyze the release of N-linked oligosaccharides from 1 μmole of denatured ribonuclease B per minute at 37°C, pH 7.5.

    Not formulated for FACE® analysis, use GK50050 instead.

    Size: 1 U in 400 µl

    Concentration: ≥ 2.5 U/ml

    Product Code: GKE-5006D

    1. Kim KK, Kim MK, Lim JH, Park HY, Lee ST. Transfer of Chryseobacterium meningosepticum and Chryseobacterium miricola to Elizabethkingia gen. nov. as Elizabethkingia meningoseptica comb. nov. and Elizabethkingia miricola comb. nov.  2005 May;55(Pt 3):1287-93.

    Tech Info

    GKE-5006D Technical Data Sheet  

    Safety

    Product Safety Documentation for GKE-5006D:

    Product/Part No. Description
    GKE-5006D

    US-N-Glycanase®

    GB-N-Glycanase®

    

     


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