Recombinant Mouse Bestrophin-1 (Best1), partial

Code CSB-YP002666MO1
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Source Yeast
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Code CSB-EP002666MO1
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Source E.coli
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Code CSB-EP002666MO1-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP002666MO1
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Source Baculovirus
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Code CSB-MP002666MO1
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Source Mammalian cell
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Product Details

>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
Best1; Bmd1; Vmd2; Bestrophin-1; Vitelliform macular dystrophy protein 2 homolog
Mus musculus (Mouse)
Protein Length
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

Forms calcium-sensitive chloride channels. Permeable to bicarbonate.
Gene References into Functions
  1. Data suggest that the ion channels CaV1.3, bestrophin-1 and maxiK were identified as players in the regulation of photoreceptor outer segments (POS) phagocytosis by the retinal pigment epithelium (RPE). PMID: 26427483
  2. Best1-mediated astrocytic glutamate activates the synaptic N-methyl-D-aspartate receptor (NMDAR) and modulates NMDAR-dependent synaptic plasticity. PMID: 25645137
  3. Bestrophin-1 functions as an intracellular Cl channel which helps to accumulate and to release Ca(2+) from stores by conducting the counterion for Ca(2+). PMID: 24664688
  4. Best1, located at the microdomains near the synaptic junctions, has a significantly high permeability to glutamate in vivo. PMID: 24321245
  5. Results show that different mutations in Best1 cause differential effects on its localization and that this effect varies with the presence or absence of wild-type (WT) Best1. PMID: 23825107
  6. Astrocytic glutamate via Best1 channel targets and activates synaptic NMDA receptors. PMID: 23324492
  7. Upon activation of protease activated receptor 1 (PAR1), an increase in intracellular Ca2+ concentration leads to an opening of Best1 channels and subsequent release of glutamate in cultured astrocytes. PMID: 23062602
  8. Ultrastructural analyses demonstrate that TREK-1 is preferentially localized at cell body and processes, whereas Best1 is mostly found in microdomains of astrocytes near synapses. PMID: 23021213
  9. study reports that tonic inhibition in the cerebellum is due to GABA being released from glial cells by permeation through the Bestrophin 1 anion channel PMID: 20929730
  10. Retinal pigment bestrophin-1 possibly conducts Cl(-) as counter ion for Ca(2+) uptake into cytosolic Ca(2+) stores. PMID: 20411394
  11. Data demonstrate that bestrophin 1 is localized in the endoplasmic reticulum (ER), where it interacts with the ER-Ca(2+) sensor and can enhance Ca(2+) signaling and activation of Ca(2+)-dependent Cl(-) (TMEM16A) and K(+) (SK4) channels. PMID: 19823864
  12. cloning and characterization by combining biocomputational analyses and molecular genetic approaches PMID: 15218265
  13. We suggest the loss of vision associated with Best vitelliform macular dystrophy is not caused by the same pathologic process as the diminished light peak, but is caused by an unidentified effect of best-1 [VMD2] on other cellular processes. PMID: 16636205
  14. BEST1 may form the Ca2+-activated Cl(-) current, or it may be a component of a Cl(-) channel complex in epithelial tissues. PMID: 17003041
  15. suggest a role of bestrophin 1 and 2 for Ca(2+) dependent Cl(-) secretion in mouse airways PMID: 18652850
  16. This study provides the first characterization of the biophysical properties of mBest1 and a framework for the elucidation of the physiological role of bestrophins. PMID: 19426717
  17. Repression of cell proliferation, induction of Ca(2+)-dependent Cl(-) conductance, and expression of Best1 occurs during mesenchymal-to-epithelial transition once renal collecting duct cells polarize and terminally differentiate. PMID: 19470678
  18. Our data suggest that Best1 belongs to a group of genes upregulated by nerve injury and supports functional Ca(2+)-activated chloride current expression in injured sensory neurons PMID: 19675239
  19. The data of this study provided molecular evidence that the Bestrophin-1 channel is responsible for Ca2+-activated anion channel function in astrocytes. PMID: 19828819

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Subcellular Location
Cell membrane; Multi-pass membrane protein. Basolateral cell membrane.
Protein Families
Bestrophin family
Database Links
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