| Description | Product Descriptionalpha-L-fucoside fucohydrolase, alpha-L-fucosidase, alpha-(1-3,4) fucosidaseAlpha (1-3,4) Fucosidase cleaves branched non-reducing terminal fucose, linked α(1-3) or α(1-4) to the N-acetylglucosamine of terminal Gal-GlcNAc disaccharide structures. The presence of sialic Product Descriptionalpha-L-fucoside fucohydrolase, alpha-L-fucosidase, alpha-(1-3,4) fucosidaseAlpha (1-3,4) Fucosidase cleaves branched non-reducing terminal fucose, linked α(1-3) or α(1-4) to the N-acetylglucosamine of terminal Gal-GlcNAc disaccharide structures. The presence of sialic acid (but not fucose) linked to the galactose will block cleavage.For removing core fucose linked α-(1-6) to the core GlcNAc of a GlcNAc-GlcNAc disaccharide structure we recommend our Alpha-(1-6) Fucosidase.α(1-3, 4) Fucosidase is useful for:nbsp;nbsp;Fucose linkage determinationnbsp;nbsp;Deglycosylating glycoproteins with Lewis structuresContentsAlpha-(1-3,4)-Fucosidase in 20 mM Tris-HCl, 25 mM NaCl,(pH 7.5).Included with 20 µL and 60 µL pack sizes:5x Reaction Buffer 5.0 (250 mM sodium phosphate, pH 5.0)Molecular weight40,000 daltonsFormulationThe enzyme is provided as a sterile-filtered solution in 20 mM Tris-HCl, 25 mM NaCl pH 7.5.Suggested usage1. Add up to 1 nmole of oligosaccharide to a tube.2. Add de-ionized water to a total of 15 µl.3. Add 4 µl of 5x Reaction Buffer 5.0.4. Add 1 µl of Alpha-(1-3,4)-Fucosidase.5. Incubate for 1 hour at 37˚C.SpecifictityNon-reducing terminal branched fucose when linked alpha-(1-3) or alpha-(1-4) to GlcNAc of a Gal-GlcNAc disaccharide structure. The presence of sialic acid (but not fucose) linked to the galactose will block cleavage.Specific Activity AssayOne unit of Fucosidase activity is defined as the amount of enzyme required to cleave 1 µmole of fucose from Lewis X trisaccharide, 4-methylumbelliferyl glycoside in 1 minute at 37˚C and pH 5.0. Lewis X trisaccharide is Gal Beta-(1-4)[Fuc alpha-(1-3)]GlcNAc.PurityEach lot of α(1-3, 4) Fucosidase is tested for contaminating activities by incubating the enzyme for 24 hours at 37°C with the appropriate substrates; the detection limit of this assay is 5 µU/mL (IUB). A passing lot will have no detectable activity.For the protease assay, 10 µg of denatured BSA is incubated for 24 hours with 2 µL of enzyme. Analysis of the BSA band after SDS-PAGE should show no evidence of degradation.StabilityStable at least 12 months when stored properly. Several days exposure to ambient temperatures will not reduce activity... Read More | Amyloid β-Protein Fragment 25-35 (Aβ25-35) is derived from the amyloid-β protein.amyloid-β protein, which is mapped to human chromosome 21q21.Aβ25-35 lacks the N-terminal domain and the metal binding site and is majorly generated by proteolytic cleavage of Aβ(1−40Amyloid β-Protein Fragment 25-35 (Aβ25-35) is derived from the amyloid-β protein.amyloid-β protein, which is mapped to human chromosome 21q21.Aβ25-35 lacks the N-terminal domain and the metal binding site and is majorly generated by proteolytic cleavage of Aβ(1−40) peptides. It has a β-sheet and β-turn structure. Amino Acid Sequence Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-MetFunctional domain of Aβ required for both neurotrophic and neurotoxic effects... Read More | Inquire | Aprotinin is a competitive serine protease inhibitor that inhibits trypsin,chymotrypsin,kallikrein and plasmin.Aprotinin forms stable complexes with and blocks the active sites of enzymes. Binding is reversible with most aprotinin,protease complexes and dissociating at pH >10 or <3. Effective Aprotinin is a competitive serine protease inhibitor that inhibits trypsin,chymotrypsin,kallikrein and plasmin.Aprotinin forms stable complexes with and blocks the active sites of enzymes. Binding is reversible with most aprotinin,protease complexes and dissociating at pH >10 or <3. Effective concentration is equimolar with protease.Recombinant aprotinin is expressed in E. Coli, and purified with HPLC. It contains no animal-derived components. This is a recombinant form of bovine lung aprotinin, which is traditionally isolated from bovine lung by methods involving fractional precipitation, gel filtration, and ion exchange chromatography. UNIT DEFINITION:A conversion factor for Aprotinin is: 1 EPU = 1 USP Aprotinin Unit = 1800 KIU... Read More | Purity:>95%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：Transcription regulator involved in inner cell mass and embryonic stem (ES) cells proliferation and self-renewal. Imposes pluripotency on ES cells and prevents their differentiation towards extraembryonic Purity:>95%, by SDS-PAGE visualized with Coomassie® Blue Staining.Description：Transcription regulator involved in inner cell mass and embryonic stem (ES) cells proliferation and self-renewal. Imposes pluripotency on ES cells and prevents their differentiation towards extraembryonic endoderm and trophectoderm lineages. Blocks bone morphogenetic protein-induced mesoderm differentiation of ES cells by physically interacting with SMAD1 and interfering with the recruitment of coactivators to the active SMAD transcriptional complexes (By similarity). Acts as a transcriptional activator or repressor (By similarity). Binds optimally to the DNA consensus sequence 5'-TAAT[GT][GT]-3' or 5'-[CG][GA][CG]C[GC]ATTAN[GC]-3' (By similarity). When overexpressed, promotes cells to enter into S phase and proliferation... Read More |