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.
Interferon-induced dynamin-like GTPase with potent antiviral activity against human immunodeficiency virus type 1 (HIV-1). Acts by targeting the viral capsid and affects the nuclear uptake and/or stability of the HIV-1 replication complex and the subsequent chromosomal integration of the proviral DNA. Exhibits antiviral activity also against simian immunodeficiency virus (SIV-mnd). May play a role in regulating nucleocytoplasmic transport and cell-cycle progression.
基因功能參考文獻:
Study identifies MxB as a potent pan-herpesvirus restriction factor which blocks the uncoating of viral DNA from the incoming viral capsid. PMID: 29773792
These data demonstrate that human MXB but not other human or murine MX proteins inhibit murine cytomegalovirus propagation. Evidently, the viral protein expression was delayed and the viral DNA amount in nucleus was diminished in MXB expressing cells indicating an obstruction of nuclear entry. PMID: 30032029
Therefore, these results demonstrate the importance of MxB in alpha interferon-mediated inhibition of HIV-1 infection. PMID: 29925663
The dynamin-like MxB GTPase serves as a broadly acting intracellular restriction factor that controls retrovirus as well as herpesvirus infections. PMID: 29950411
MxB dimers form higher order oligomers that restrict retroviral replication by binding to the viral capsid. [review] PMID: 27492442
These experiments suggested that MxB does not contribute to the HIV-1 restriction observed in IFN-alpha-treated human cells. PMID: 26719253
Together, the data demonstrate that interferon-beta inhibits foamy virus early in infection and that MxB is not a restriction factor of foamy virus. PMID: 26609934
We propose that lower-order oligomerization of MX2 is sufficient for the effective inhibition of human immunodeficiency virus type 1. PMID: 26446602
Study analyzed the evolutionary history of MX2 at the inter- and intraspecific level and use this information to identify a haplotype that associates with natural resistance to HIV-1 infection in humans; the ancestral (G) allele of rs2074560 protects from HIV-1 infection with a recessive effect. PMID: 24930137
The high prevalence of MxB-resistant mutations in the CypA-binding loop indicates the significant selective pressure of MxB on HIV-1 replication in vivo. PMID: 25571928
MxB inhibits HIV-1 by interfering with minimally two steps of infection, nuclear entry and post-nuclear trafficking and/or integration, without destabilizing the inherent catalytic activity of viral preintegration complexes. PMID: 25348155
HIV-seronegative women who use Depo-Provera have the highest levels of Mx2 expression, highlighting a possible mechanism for hormonal modulation of HIV resistance. PMID: 25562491
The amino-terminal domain of Mx2/MxB-dependent interaction with the HIV-1 capsid has been characterized. PMID: 25363729
MxB oligomerization is important for the ability of MxB to bind to the HIV-1 core proteins. PMID: 25568212
A triple-arginine motif in the amino-terminal domain and oligomerization are required for HIV-1 inhibition by human MX2. PMID: 25673704
structural analysis of assembly of human anti-HIV dynamin-like protein MxB/Mx2 PMID: 25446123
To identify protein domains of MX2 that specify HIV-1 inhibition. PMID: 24899177
Through a combination of in vitro evolution and unbiased mutagenesis, authors further map the determinants of sensitivity to Mx2 and reveal that multiple capsid (CA) surfaces define sensitivity to Mx2. PMID: 24760893
Taken together, it is concluded that human MxB protein inhibits HIV-1 DNA integration by a CypA-dependent mechanism. PMID: 24055605
MX2 is therefore a cell-autonomous, anti-HIV-1 resistance factor whose purposeful mobilization may represent a new therapeutic approach for the treatment of HIV/AIDS PMID: 24048477
findings indicate that MX2 is an effector of the anti-HIV-1 activity of type-I IFN, and suggest that MX2 inhibits HIV-1 infection by inhibiting capsid-dependent nuclear import of subviral complexes PMID: 24121441
The MX2 promoter is activated by Trichostatin A (TSA) treatment and by serum depletion according to promoter reporter assays in HEK 293 cells. PMID: 20494980
the MX2 gene to be significantly less expressed in comparison with normal subjects in the white blood cells of narcoleptic patients PMID: 17702266
The expression level of the MX2 gene tended to be downregulated in subjects carrying HLA-DQB1*0602, compared with that of the control subjects without this allele. PMID: 18517045