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(chǔ)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(xiàng):
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(jià)
靶點(diǎn)詳情
功能:
Part of the twin-arginine translocation (Tat) system that transports large folded proteins containing a characteristic twin-arginine motif in their signal peptide across membranes. TatA could form the protein-conducting channel of the Tat system.
基因功能參考文獻(xiàn):
The authors observe that substitutions of charged residues located in the TatA amphipathic helix lock TatA in an assembled state, suggesting that these charged residues play a critical role in the protein translocation step that follows TatA assembly. PMID: 28857741
Live cell imaging shows reversible assembly of the TatA component of the twin-arginine protein transport system. PMID: 24003141
Each subunit of TatA consists of a transmembrane segment, an amphiphilic helix (APH), and a C-terminal densely charged region (DCR). The sequence of charges in the DCR is complementary to the charge pattern on the APH, suggesting that the protein can be "zipped up" by a ladder of seven salt bridges. PMID: 23332763
analysis of the Tat translocation mechanism through structural and biophysical studies of the amphipathic region of TatA from Escherichia coli PMID: 21683683
the TatA protein represents a bifunctional component fulfilling both the TatA and TatB functions. PMID: 15557327
TatA fused to green/cyan/yellow fluorescent protein is found to be preferentially incorporated into the TatABC complex. PMID: 15728576
TatA may be the major pore-forming subunit in the twin-arginine translocation pathway [review] PMID: 15748976
We used purified preproteins to study interaction with the phospholipid membrane by using surface plasmon resonance.Preproteins interact tightly with a model membrane consisting of only phospholipids in early step in protein translocation by Tat system. PMID: 16475812
it is only in TatA that the amphipathic helix is sensitive to amino acid substitutions; the TatA amphipathic helix may play a role in forming and controlling the path of substrate movement across the membrane PMID: 17565984
data support the TatA polymerization model for the mechanism of Tat transport. PMID: 18832162
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亞細(xì)胞定位:
Cell inner membrane; Single-pass membrane protein; Cytoplasmic side. Note=Abundant all over the membrane, but is more concentrated at the cell poles.