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H6512

Sigma-Aldrich

Heparinase II from Flavobacterium heparinum

Lyophilized powder stabilized with approx. 25% bovine serum albumin, lyophilized powder, ≥100 units/mg protein (enzyme + BSA)

Synonym(s):

Heparin lyase II

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About This Item

CAS Number:
149371-12-0
MDL number:
MFCD00131319
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

bacterial (Flavobacterium heparinum)

Quality Level

200

conjugate

conjugate (Glucosaminoglycan)

form

lyophilized powder

specific activity

≥100 units/mg protein (enzyme + BSA)

mol wt

84.1 kDa

storage temp.

−20°C

General description

Heparinase II is one of three key heparin-degrading enzymes of Flavobacterium heparinum (also known as Pedobacter heparinus1). It belongs to the polysaccharide lyases family PL21.

Application

Heparinase II from Flavobacterium heparinum has been used:
  • for digestion of heparin sulfate during exosome isolation
  • for digestion of heparin sulfate in notochordal cell conditioned media (NCCM) to investigate the content of glycosaminoglycans in NCCM
  • as a component of digestion buffer during cell surface glycan processing
  • as a component of heparin lyase (HSase) mix to remove the heparin sulfate on the 293ͰT/ACE2 cell surface and study the effect of histones on the infectivity of pseudovirus

Biochem/physiol Actions

Heparinase II cleaves heparan sulfate, and to a lesser extent heparin (relative activity about 2:1), at the α (1-4) linkages between hexosamines and uronic acid residues (both glucuronic and iduronic), yielding mainly disaccharides. Heparinase II has the broadest substrate specificity of the three heparinases Heparinase enzymes helps in decoding the complex structures of substrates. Heparin interferes with DNA transcription in PCR and in reverse transcription of RNA. Heparinase II has been used to remove heparin for downstream analysis of genomic DNA.

Unit Definition

One unit will form 0.1 μmole of unsaturated uronic acid per hr at pH 7.0 at 25 °C. One International Unit (I.U.) is equivalent to approx. 600 Sigma units.

Other Notes

View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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David Shaya et al.
The Journal of biological chemistry, 285(26), 20051-20061 (2010-04-21)
Heparinase II (HepII) is an 85-kDa dimeric enzyme that depolymerizes both heparin and heparan sulfate glycosaminoglycans through a beta-elimination mechanism. Recently, we determined the crystal structure of HepII from Pedobacter heparinus (previously known as Flavobacterium heparinum) in complex with a
Moffat, C.F., et al.
Proc. 8th Int. Symp. Glycoconjugates, 1, 79-79 (1985)
McLean, M.W., et al.
Proc. 8th Int. Symp. Glycoconjugates, 1, 73-73 (1985)
PCR-sequence-specific primer typing of HLA class I and class II alleles.
Mike Bunce
Methods in molecular biology (Clifton, N.J.), 210, 143-171 (2002-11-05)
R S Heyderman et al.
Methods in molecular medicine, 67, 649-661 (2001-01-01)
The vascular endothelium forms an essential barrier against invasion by Neisseria meningitidis from the nasopharynx into the circulation and against meningococcal invasion from the bloodstream into the brain. In previous chapters, there has therefore been considerable emphasis on techniques designed
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