components of the tdap vaccine
Báo cáo khoa học: The protein shuffle Sequential interactions among components of the human nucleotide excision repair pathway pdf
Ngày tải lên :
07/03/2014, 12:20
... late steps of the process. For example, early in the
NER process, RPA assists TFIIH in the opening of
the DNA helix around the damage site [36]. Further-
more, in the presence of the XPA minimal ... sites.
Taken together, these findings suggest that the struc-
tural properties of DNA-damaged substrates, whether
intrinsic or the result of protein binding, function in
the recruitment of the XPC–hHR23B ... assembly of the protein
complex that carries out DNA incision around the
lesion, (b) incision of the damaged DNA strand on
both sides of the injury, which results in damage exci-
sion, and (c) synthesis...
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Báo cáo khoa học: Interaction of the E2 and E3 components of the pyruvate dehydrogenase multienzyme complex of Bacillus stearothermophilus ppt
Ngày tải lên :
16/03/2014, 18:20
... representing the
PSBD of the dihydrosuccinyltransferase chain of the
2-oxoglutarate dehydrogenase complex of E. coli [12]
and of the dihydroacetyltransferase chain of the PDH
complex of B. stearothermophilus ... 119–171) of the B. stearothermophilus
E2p polypeptide chain with the dimer of a protein
domain (E3int) representing the interface domain (resi-
dues 343–470) of B. stearothermophilus E3. The use of
the ... close to the twofold axis of E3
preventing the association of a second PSBD [28,29].
The interaction occurs at the C
2
-axis of symmetry in
the E3 dimer, chiefly with the interface domain of E3,
which...
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List the components of a radio system
Ngày tải lên :
13/09/2012, 10:52
... with the data to be sent
–
Imprints a unique address on the data
–
The longer the code is, the more users will be able to
share the same channel
–
Number of chips in the code
•
Determines the ... single
output
–
Output is in the range of the highest sum and the lowest
difference of the two frequencies
–
Sum and differences are known as the sidebands of the
frequency carrier
•
Shield ... interference of noise
–
Boost the strength of the signal
–
Use of filters when receiving the signal
•
Attenuation
–
A loss of signal strength
•
Multipath distortion
–
As a radio signal is transmitted, the...
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COMPONENTS OF REPRODUCTIVE ISOLATION BETWEEN THE MONKEYFLOWERS MIMULUS LEWISII AND M. CARDINALIS (PHRYMACEAE) potx
Ngày tải lên :
05/03/2014, 17:20
... this
reason the low relative biomass of M. lewisii reduces the total
isolation of the species only slightly the advantage of hy-
bridization is calculated as a function of the small amount
of reproductive ... contrasts.
Because of the labor required to estimate the relative fre-
quency of F
1
individuals in the progeny ofmixed pollinations,
we studied the progeny of each cross type from eight of the
17 seed ... 62% of crosses between congeneric species
showed no clear reduction in F
1
fitness. Furthermore, they
found that the time span of the loss of hybrid fertility and
viability is often longer than the...
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Báo cáo khoa học: Structural and functional aspects of unique type IV secretory components in the Helicobacter pylori cag-pathogenicity island potx
Ngày tải lên :
06/03/2014, 00:21
... arrangement of
CagD is quite different from SycT as well as that of
other members of this family.
Finally, when crystallized in the presence of Cu(II),
the protein shows the presence of the ion coordinated
in ... proteins.
Four of them, M69, M130, M133, M138, define a clus-
ter in the 3D structure, approximately located in the
internal side of the peanut. The results of the crystallo-
graphic model of CagS do ... about the function of the protein. The
Fig. 1. (A) Cartoon representation of CagZ
protein fold. The L-shape is clearly visible.
(B) Two views of the electrostatic potential
surface of CagZ. In the...
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Báo cáo khoa học: Membrane binding of SRP pathway components in the halophilic archaea Haloferax volcanii docx
Ngày tải lên :
16/03/2014, 16:20
... polyhistidine-tagged version of the
protein. Given that the presence of a His
6
-tag at the
C-terminus of the E. coli FtsY NG domain did not
interfere with determination of the 3D structure of this
FtsY region ... preincubated
with either FtsY or the FtsY NG domain. The mixture
was then applied to the base of ultracentrifuge tubes for
the S120AT2 rotor of the Sorvall Discovery M120
ultracentrifuge. In some cases, the ... understanding of the membrane interaction
of SRP pathway components in Archaea, the membrane
binding of SRP54 and FtsY in the halophilic archaea
Haloferax volcanii was investigated. Such studies offer
insight...
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Báo cáo Y học: The Fe-only nitrogenase and the Mo nitrogenase from Rhodobacter capsulatus A comparative study on the redox properties of the metal clusters present in the dinitrogenase components doc
Ngày tải lên :
18/03/2014, 01:20
... properties of the FeFe protein (Eur. J. Biochem. 269) 1655
Comparison of the turnover signals from enzyme-
reduced states of the MoFe protein and the FeFe protein
The characteristic EPR signal of the ... identical with the control
spectrum in the absence of Rc1
Mo
.Furthermore,withthe
exception of the classical S ¼ 3/2 signal of the MoFe
protein a t l ower temperatures (< 12 K), no other signal
was ... note
that the reducing agent was not entirely removed from FeFe
protein preparations in view of the lability of the protein
even in the presence of only trace amounts of oxygen [8].
For the sake of...
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Báo cáo " Quantitative distribution of groundwater chemical components in the Red River Delta based on frequency analysis " pot
Ngày tải lên :
22/03/2014, 12:20
... ed
mainly of sandin the lowerpartandweathered
clay in
the upper part of VinhPhuc Formation
(Q
1
3
vp). The thickness of this layer varies from
1mto55.7m. The thickness of coarsesediments
varies ... by theirs
statistical parameters with the most important
index being the expected values and the
standard deviations. The estimators of
these
two parameters depend on the ... distribution of main ions and other chemical components of groundwater
arecharacterizedbytheirsstatisticalparameters.Theydependcloselyonprobabilitydistribution of
the data....
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Báo cáo khoa học: Isolation and identification of antimicrobial components from the epidermal mucus of Atlantic cod (Gadus morhua) docx
Ngày tải lên :
23/03/2014, 15:21
... source for isolation of antimicrobial components.
The aim of the present study was to identify antimicro-
bial components from the skin mucus of healthy
Atlantic cod (Gadus morhua).
The mucus extract ... mimic the natural
environment of cod further supports the role of the
mucus as a defence barrier. Because we observed an
abolition of the extract activities by pepsin treatment
we concluded that the ... parts of the innate immunity and are
widespread, both in the plant and the animal kingdom
[12], e.g. the mammalian defensins and cathelicidins
[13] and magainins from the skin of frogs [14]. There
is...
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Báo cáo Y học: Exploration of the diaphorase activity of neutrophil NADPH oxidase Critical assessment of the interaction of iodonitrotetrazolium with the oxidase redox components doc
Ngày tải lên :
31/03/2014, 21:21
... strongly interfered with the
rate and extent of reoxidation of the heme b reduced in the
presence of NADPH. Following addition of sodium dithi-
onite, the cycles of reoxidation of heme b initiated ... experimental conditions of
the assay of NADPH oxidase, for example the nature of
the detergent used in the cell-free assay or the membrane
concentration.
Compared effects of the two heme inhibitors,
benzylimidazole ... C-terminal half of the g p91phox subunit of the
flavocytochrome. Experimental data show that this is not
the case, which raises the question of the capacity of I NT to
probe specifically the diaphorase...
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History of the periodic table
Ngày tải lên :
22/08/2012, 09:18
... ong theo th t tng dn v trng lng
nguyên t. Khi cái ng ong c a ra thì 16 n v khi lng có th ln lt c vit lên,
nhng nguyên t liên quan cht ch vi nhau c vit theo ... biu rng bt c nguyên tã cho nào cng s
th hin tính tng t v tính cht vi 8 nguyên t theo sau nó trong bng HTTH hóa hc.
Ai là cha ca bng HTTH?
ã có nhiu ý kin không tán thành ... loi các nguyên t. Bn tho này ã cp n khong mt na
các nguyên tã bit c sp sp theo trng lng nguyên t và trình bày nhng thay i tun
hoàn v hóa tr nh là mt hàm s ca...
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