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.
產品評價
靶點詳情
功能:
Regulatory subunit of the cyclin-dependent kinase pair (CDK9/cyclin-T1) complex, also called positive transcription elongation factor B (P-TEFb), which is proposed to facilitate the transition from abortive to productive elongation by phosphorylating the CTD (C-terminal domain) of the large subunit of RNA polymerase II (RNA Pol II).
基因功能參考文獻:
Data show that the minimal 90-amino acid AF9 fragment in MLL-AF9 retains an ability to form higher order complexes with AF4*P-TEFb and with DOT1. PMID: 21896721
Data show that the CDK9 and cyclin T1 subunits of P-TEFb are present in mouse oocytes and preimplantation embryos, and that CDK9 is essential for embryonic genome activation in the mouse. PMID: 21639898
Cyclin T1 oncogenic function and suggest a role for this protein in controlling cell cycle probably via Rb/E2F1 pathway. PMID: 20714219
CDK9 has the intrinsic property to shuttle between nucleus and cytoplasm, and enhanced expression of cyclin T1 promotes its nuclear localization. PMID: 12115727
P-TEFb is a key mediator of Myc activated transcription by stimulating elongation PMID: 12177005
Tat and trans-activation-responsive (TAR) RNA-independent induction of HIV-1 long terminal repeat by this protein requires Sp1. PMID: 12458222
cyclin T1 binds with granulin to inhibit transcription PMID: 12588988
location of the cyclin T1 gene regulatory elements is male germ cell-specific PMID: 12914944
These data link the P-TEFb equilibrium to the intracellular transcriptional demand and proliferative/differentiated states of cells. PMID: 16980611
knockdown of CycT1 from P-TEFb abolishes both of the different chromatin loops regulating CD4 expression PMID: 18039856
the reduced level of CLP-1 introduced in the background of elevated levels of cyclin T1 elevates derepression of P-TEFb activity and emphasizes the importance of the role of CLP-1 in the mechanism governing compensatory hypertrophy in cardiomyocytes. PMID: 19443839