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.
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.
產(chǎn)品提供形式:
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.
復(fù)溶:
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.
儲存條件:
Store at -20°C/-80°C upon receipt, aliquoting is necessary for
mutiple use. Avoid repeated freeze-thaw cycles.
保質(zhì)期:
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.
貨期:
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.
注意事項:
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.
產(chǎn)品評價
靶點(diǎn)詳情
功能:
ATP-dependent specificity component of the ClpAP protease. It directs the protease to specific substrates. It has unfoldase activity. The primary function of the ClpA-ClpP complex appears to be the degradation of unfolded or abnormal proteins.
基因功能參考文獻(xiàn):
These results suggest that the presence of gamma phosphate may serve to switch ClpA into a conformational state with high peptide binding activity, whereas affinity is severely attenuated when ADP is bound. PMID: 21376057
Molecular mechanism of polypeptide translocation catalyzed by the Escherichia coli ClpA protein translocase PMID: 20380838
one ClpS monomer is sufficient to direct the activity of the ClpA hexamer PMID: 20068042
identified a number of structural features in the N-domain, including a Zn(++) binding motif, several interfaces for binding to ClpS, and a prominent hydrophobic surface area that binds peptides in different configurations PMID: 15037248
determined structure at 12A resolution by cryo-electron microscopy; N-domain region is accentuated in a variance map of ClpAP and in a difference imaging experiment with ClpAP complexed with ClpS PMID: 15037249
ClpA has a single high affinity peptide binding site per hexamer PMID: 15657062
ClpA utilizes two structural elements, one in the N-temrinal domain and the other in the pore of the hexamer, both of which are required for efficient unfolding of some protein substrates. PMID: 18279386
Results suggest that the flexible attachment of the N-domains to ClpA allows their recruitment to the pore on demand for certain substrates, while allowing them to move out of the way for substrates binding directly to the pore. PMID: 18358489
Data support substrate translocation by ClpA via ATP-induced movements of the D2 loop. PMID: 18682217
Application of analytical ultracentrifugation and light scattering techniques reveals that ClpA self-associates in a monomer-tetramer equilibrium in the presence and absence of magnesium at 25 degrees centigrade. PMID: 19650643
ATP hydrolysis in both domains of ClpA was required for efficiently processing substrates of high local stability. PMID: 19726681