Recombinant Escherichia coli Bifunctional protein BirA (birA)

Code CSB-YP361925ENV
MSDS
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Source Yeast
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Code CSB-EP361925ENV
MSDS
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Source E.coli
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Code CSB-EP361925ENV-B
MSDS
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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-BP361925ENV
MSDS
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Source Baculovirus
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Code CSB-MP361925ENV
MSDS
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
birA
Uniprot No.
Alternative Names
birA; bioR; dhbB; b3973; JW3941; Bifunctional ligase/repressor BirA; Biotin operon repressor; Biotin--[acetyl-CoA-carboxylase] ligase; EC 6.3.4.15; Biotin--protein ligase; Biotin-[acetyl-CoA carboxylase] synthetase
Species
Escherichia coli (strain K12)
Expression Region
1-321
Target Protein Sequence
MKDNTVPLKL IALLANGEFH SGEQLGETLG MSRAAINKHI QTLRDWGVDV FTVPGKGYSL PEPIQLLNAK QILGQLDGGS VAVLPVIDST NQYLLDRIGE LKSGDACIAE YQQAGRGRRG RKWFSPFGAN LYLSMFWRLE QGPAAAIGLS LVIGIVMAEV LRKLGADKVR VKWPNDLYLQ DRKLAGILVE LTGKTGDAAQ IVIGAGINMA MRRVEESVVN QGWITLQEAG INLDRNTLAA MLIRELRAAL ELFEQEGLAP YLSRWEKLDN FINRPVKLII GDKEIFGISR GIDKQGALLL EQDGIIKPWM GGEISLRSAE K
Protein Length
full length protein
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.
Form
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
Reconstitution
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.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

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Target Background

Function
Acts both as a biotin--[acetyl-CoA-carboxylase] ligase and a biotin-operon repressor. In the presence of ATP, BirA activates biotin to form the BirA-biotinyl-5'-adenylate (BirA-bio-5'-AMP or holoBirA) complex. HoloBirA can either transfer the biotinyl moiety to the biotin carboxyl carrier protein (BCCP) subunit of acetyl-CoA carboxylase, or bind to the biotin operator site and inhibit transcription of the operon.
Gene References into Functions
  1. BirA signals to the global regulator Fur, which in turn activates LEE (locus of enterocyte effacement) genes to promote EHEC adherence in the low-biotin large intestine. PMID: 25791315
  2. work demonstrates that variable surface loops evolved to support BirA function in the homodimerization required for transcription repression by complementing the constant loops, which are constrained because of their essential role in posttranslational biotin addition PMID: 22446587
  3. BirA function entails extensive interactions among the three domains of the protein and show that normal ligase activity does not ensure normal DNA binding. PMID: 22210766
  4. Results describe the 2.8A resolution crystal structure of BirA in complex with the co-repressor analog biotinol-5'-AMP. PMID: 16438984
  5. Results indicate that the hydrophobic cluster is critical to the ligand-induced disorder-to-order transition in birA and that this transition is integral to the allosteric response in the biotin repressor. PMID: 17765263
  6. BirA ligase biotinylates K4, K9, K18 and K23 in histone H3. PMID: 18452652
  7. energetic and structural underpinnings of the dual specificity of protein BirA as a homodimer or as a heterodimer with acetyl coenzyme A carboxylase PMID: 19361526

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Protein Families
Biotin--protein ligase family
Database Links
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