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My Cart> Cell Biology > Cell Detection > Cell Growth Factor > Recombinant E.coli Lactose operon repressor/LacI
Purity：≥95% as determined by reducing SDS-PAGE.
Storage：Store at≤-70℃，6 months.with seal;3 month after opening.Avoid freeze/thaw cycles.
Appearance：Supplied as a 0.2 μm filtered solution of 20mM Tris, 300mM NaCl, 5mM DTT pH 8.0.
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| Appearance | Supplied as a 0.2 μm filtered solution of 20mM Tris, 300mM NaCl, 5mM DTT pH 8.0. |
| Purity | ≥95% as determined by reducing SDS-PAGE. |
| Storage | Store at≤-70℃，6 months.with seal;3 month after opening.Avoid freeze/thaw cycles. |
| Background | Lactose operon repressor (LacI) contains one HTH lacI-type DNA-binding domain，functions as a homotetramer.Lactose operon repressor as a repressor of the lactose operon，which also as an inducer，binds allolactose.If remove residues 1-59，resulting the loss of DNA-binding activity but retains tetrameric structure and inducer-binding activity.If delete residues 340-360，resulting the loss of tetramer formation，but retains dimer formation，inducer-binding activity，and DNA-binding activity. |
| Source | E.coli |
| Endotoxin | Less than 0.1 ng/ug(1 EU/ug)as determined by LAL test. |
| Unit | Piece |
| Specification | 10ug 50ug 500ug 1mg |
Cell growth factor
Remark：These protocols are for reference only. Solarbio does not independently validate these methods.
Note：
1. The products are all for scientific research use only. Do not use it for medical, clinical diagnosis or treatment, food and cosmetics, etc. Do not store them in ordinary residential areas.
2. For your safety and health, please wear laboratory clothes, disposable gloves and masks.
3. The experimental results may be affected by many factors, after-sale service is limited to the product itself and does not involve other compensation.
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