Results 241 to 250 of about 2,197,129 (300)

Structure of Poly (I)•Poly (A)•Poly (I)

Journal of Biomolecular Structure and Dynamics, 2000
The molecular structure of poly (I).poly (A).poly (I) has been determined and refined using the continuous intensity data on layer lines in the x-ray diffraction pattern obtained from an oriented fiber of this polymorphic RNA complex. The polymer forms a 12-fold right-handed triple-helix of pitch 39.7A and each base-triplet is stabilized by quasi Crick-
R, Chandrasekaran, A, Giacometti, S, Arnott   +2 more
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Structure of Poly (U)•Poly (A)•Poly (U)

Journal of Biomolecular Structure and Dynamics, 2000
The molecular structure of poly (U).poly (A).poly (U) has been determined and refined using the continuous x-ray intensity data on layer lines in the diffraction pattern obtained from an oriented fiber of the RNA. The final R-value for the preferred structure is 0.24, far lower than that for the plausible alternatives.
R, Chandrasekaran, A, Giacometti, S, Arnott   +2 more
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Structure of Poly (dT)·Poly (dA)·Poly (dT)

Journal of Biomolecular Structure and Dynamics, 2000
The molecular structure of poly (dT).poly (dA).poly (dT) has been determined and refined using the continuous x-ray intensity data on layer lines in the diffraction pattern obtained from an oriented fiber of the DNA. The final R-value for the preferred structure is 0.29 significantly lower than that for plausible alternatives.
R, Chandrasekaran, A, Giacometti, S, Arnott   +2 more
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Electrical Conduction through Poly(dA)-Poly(dT) and Poly(dG)-Poly(dC) DNA Molecules

Physical Review Letters, 2001
We report direct measurements of electrical transport through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules containing identical base pairs. The observed experimental results suggest that electrical transport through DNA molecules occurs by polaron hopping. We have also investigated the effect of gate voltage on the current-voltage curve.
K H, Yoo, D H, Ha, J O, Lee, J W, Park, J, Kim, J J, Kim, H Y, Lee, T, Kawai, H Y, Choi   +8 more
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Poly(N-isopropylacrylamide)/Poly(dopamine) Capsules

Langmuir, 2014
Polymer capsules are an interesting concept considered in nanobiotechnology. Approaches that facilitate their assembly remain sought after. Poly(dopamine) (PDA) has been considered and successfully applied in this context. We recently demonstrated that PDA could be copolymerized with different types of poly(N-isopropylacrylamide) (pNiPAAm) to assemble ...
Zhang, Yan, Mian Teo, Boon, Goldie, Kenneth, Stadler, Brigitte Maria   +3 more
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Structures for the polynucleotide complexes poly(dA) · poly(dT) and poly(dT) · poly(dA) · poly(dT)

Journal of Molecular Biology, 1974
X-ray diffraction analyses of fibers of polydeoxyadenylic acid · polydeoxythymidylic acid show that this molecule exists as a 10-fold double-helix with axial rise per nucleotide h = 3.24 to 3.29 A. The structure is very similar to B-DNA (h = 3.37 A) in having C3-exo furanose rings and base-pairs positioned centrally on the helix axis, but distinctive ...
Struther Arnott, Erik Selsing
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Poly(A):Poly(U); Poly(O8A):Poly(U); Poly(A):Poly(MeNH5U) and poly(O8A):Poly(MeNH5U) versus bida semliki forest virus in chick embryos

Toxicology Letters, 1982
Poly(A):poly(U) (polyadenylic acid:polyuridylic acid hybrid); poly(O8A):poly(U) (poly-8-oxy-adenylic acid:polyuridylic acid hybrid); poly(A):poly(MeNH5U) (polyadenylic acid-5-methylamino uridylic acid hybrid) and poly(O8A):poly(MeNH5U) (poly-8-oxyadenylic acid:poly-5-methylamino uridylic acid hybrid) were studied in chick embryos to compare the ...
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Pulsed Electric Linear Dichroism of Poly(dA)·Poly(dT)·Poly(dT) and Poly(rA)·Poly(rU)·Poly(rU) in Solutions

Bulletin of the Chemical Society of Japan, 1997
Abstract The dependence of reduced dichroism (Δε/ε) of sonicated rodlike title triplexes with the counterion Mg2+, (dA)n·(dT)n·(dT′)n and (rA)n·(rU)n·(rU′)n, on the wavelength (190—300 nm) and on the applied-field strength (3.8—23.1 kV cm−1) was studied in aqueous ionic solutions at 7 °C.
Noriyuki Ojima, Kunihiko Gekko, Kiwamu Yamaoka   +2 more
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Poly reunion

Nursing Standard, 1988
I'm hoping to contact the group of students that did the Clinical Teaching course at the South Bank Polytechnic London in 1978 (Jan to July) about our ten year reunion.
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