{"product_id":"neb-r0581l","title":"New England Biolabs, R0581L, BseRI","description":"BseRI has been reformulated with Recombinant Albumin (rAlbumin) beginning with Lot #10184086.  \u003cb\u003eRelated Categories\u003c\/b\u003e Restriction Endonucleases B,, Time-Saver Qualified Restriction Enzymes  \u003cb\u003eApplications\u003c\/b\u003e Fast Cloning: Accelerate your cloning workflows with reagents from NEB,, Restriction Enzyme Digestion  \u003cb\u003eSpecification\u003c\/b\u003e \u003cb\u003eUnit Definition\u003c\/b\u003e One unit is defined as the amount of enzyme required to digest 1 µg of λ DNA in 1 hour at 37°C in a total reaction volume of 50 μl.  \u003cb\u003eReaction Conditions\u003c\/b\u003e 1X rCutSmart™ Buffer Incubate at 37°C 1X rCutSmart™ Buffer 50 mM Potassium Acetate 20 mM Tris-acetate 10 mM Magnesium Acetate 100 µg\/ml Recombinant Albumin (pH 7.9 @ 25°C)  \u003cb\u003eActivity in NEBuffers\u003c\/b\u003e NEBuffer™ r1.1: 100% NEBuffer™ r2.1: 100% NEBuffer™ r3.1: 75% rCutSmart™ Buffer: 100%  \u003cb\u003eDiluent Compatibility\u003c\/b\u003e Diluent A  \u003cb\u003eStorage Buffer\u003c\/b\u003e 10 mM Tris-HCl 50 mM NaCl 1 mM DTT 0.1 mM EDTA 200 µg\/ml Recombinant Albumin 50% Glycerol pH 7.4 @ 25°C  \u003cb\u003eHeat Inactivation\u003c\/b\u003e 80°C for 20 minutes  \u003cb\u003eMethylation Sensitivity\u003c\/b\u003e dam methylation: Not Sensitive dcm methylation: Not Sensitive CpG Methylation: Not Sensitive  \u003cb\u003eFAQ\u003c\/b\u003e Q: Is extended digestion of BseRI recommended? A: Extended digestion is not beneficial because the enzyme is not stable in reaction. Q: Does BseRI have a single site in a common vector? A: Yes, there is a single BseRI site in M13mp18. Q: What is the activity of BseRI at 25°C? A: BseRI is 100% active at 25°C. Q: Can over digestion be detrimental? A: BseRI has an exonuclease or nonspecific endonuclease activity that appears to be a property of the enzyme. Do not use greater than 10 units per ug of DNA. Q: Do I have to set-up digests with Time-Saver™ qualified enzymes for 5-15 minutes? Can I digest longer? A: NEB's Time-Saver™ enzymes have the benefit of working fast (5-15 minutes), but are also designed and qualified to withstand overnight digestions without degradation of DNA. Q: Is this enzyme sensitive to dam, dcm or mammalian CpG methylation? A: No. This enzyme is not sensitive to dam, dcm, or mammalian CpG methylation. For up-to-date information about methylation sensitivities, please visit Dam-Dcm and CpG Methylation or REBASE. Q: Can you tell me more about the switch from BSA to Recombinant Albumin (rAlbumin) in NEBuffers? A: NEB is excited to announce that we have switched BSA-containing reaction buffers (NEBuffer 1.1, 2.1, 3.1 and CutSmart® Buffer) to Recombinant Albumin-containing buffers (NEBuffer r1.1, r2.1, r3.1 and rCutSmart™ Buffer). We are also in the process of moving all restriction enzyme formulations to contain rAlbumin. We feel that moving away from animal-containing products is a step in the right direction and are able to offer this enhancement at the same price. ","brand":"New England Biolabs","offers":[{"title":"Default Title","offer_id":46835490095273,"sku":"R0581L","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/neb-r0581l","provider":"Iright","version":"1.0","type":"link"}