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Description
BsaⅠ restriction endonucleaseProduct Specification Species Bacillus stearothermophilus Synonyms Bsa restriction endonuclease Expression System E. coli Molecular Weight 64. 9kDa (Reducing) Purity >95% by SDS PAGE Conjugation Unconjugated Tag His Tag Physical Appearance Liquid Storage Buffer 10 mM Tris HCl300 mM NaCl1 mM DTT0. 1 mM EDTA500 g ml BSA50% Glycerol pH 7. 4 @ 25C Stability & Storage Store at 25 ~ 15 for 2 years Reference [1] Zhu Z, Samuelson J C, Zhou J, et al.
Product Specification
| Species | Bacillus stearothermophilus |
| Synonyms | BsaⅠ restriction endonuclease |
| Expression System | E.coli |
| Molecular Weight |
64.9kDa (Reducing) |
| Purity | >95% by SDS-PAGE |
| Conjugation | Unconjugated |
| Tag | His Tag |
| Physical Appearance | Liquid |
| Storage Buffer | 10 mM Tris-HCl、300 mM NaCl、1 mM DTT、0.1 mM EDTA、500 µg/ml BSA、50% Glycerol （pH 7.4 @ 25°C） |
| Stability & Storage |
Store at -25 ~ -15℃ for 2 years |
| Reference |
[1] Zhu Z, Samuelson J C, Zhou J, et al.Engineering Strand-specific DNA Nicking Enzymes from the Type IIS Restriction Endonucleases BsaI, BsmBI, and BsmAI[J].Journal of Molecular Biology, 2004, 337(3):573-583. [2] Lee J H, Won H J, Oh E S,etal. Golden Gate Cloning-Compatible DNA Replicon/2A-Mediated Polycistronic Vectors for Plants[J]. Frontiers in Plant Science, 2020, 11. |
Background
BsaI is a Type IIs restriction enzyme that can recognize non-palindromic sequences and cut outside of the recognition sequence. It is commonly used for Golden Gate assembly and enzymatic cleavage of plasmids to prepare linear DNA fragments with poly (A/T/G/C) endings and obtain specific sticky ends.
Recognition site:
5'-GGTCTC(N)1↓-3'
3'-CCAGAG(N)5↑-5'
Components
Storage Solution: 20 U/μl BsaⅠ、10 mM Tris-HCl、300 mM NaCl、1 mM DTT、0.1 mM EDTA、500 µg/ml BSA、50% Glycerol（pH 7.4 @ 25°C）
10*Reaction Buffer：500 mM Potassium Acetate、200 mM Tris-acetate、100 mM Magnesium Acetate、1mg/ml BSA（pH 7.4 @ 25°C）
Protocol
This step is suitable for linearization of 1 μg DNA (≥100 nt) and can be scaled up according to experimental needs.
1）Add the following components in sequence
| Components |
Volume |
|
Plasmid DNA |
1μg DNA |
|
10*Reaction Buffer |
5μl |
|
BsaⅠ (20 U/μl) |
1μl |
|
RNase-free ddH2O |
Up to 50μl |
2）Incubate at 37°C 1h
3）DNA linearization is complete, and subsequent experiments can be performed.
Guidelines
1. star activity may result from a glycerol concentration of >5%; 2. Please avoid repeated freeze-thaw cycles.
Unit Definition
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