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Limited subtilisin cleavage of tubulin results in formation of S-tubulin heterodimer and a 4-kDa carboxyl-terminal peptide fragment. This carboxyl-terminal domain constitutes an essential site for MAPs interaction and plays a role in modulating the interactions responsible for tubulin self-assembly into microtubules [Serrano et al. (1984) Proc. Natl Acad.(More)
Despite generation upon generation of scaling, computer chips have until now remained essentially 2-dimensional. Improvements in on-chip wire delay and in the maximum number of I/O per chip have not been able to keep up with transistor performance growth; it has become steadily harder to hide the discrepancy. 3D chip technologies come in a number of(More)
  • J R Cann
  • 1989
A phenomenological theory of gel electrophoresis is elaborated for protein-DNA complexes involving one, two, or three binding sites on the DNA molecule. The computed electrophoretic patterns simulate experimental patterns shown by both prokaryotic and eukaryotic systems. The mechanism whereby the electrophoretic protein-DNA ladder is generated upon(More)
CD and nmr studies have been carried out on aqueous trifluoroethanol (TFE) solutions of bradykinin (BK) and a bradykinin antagonist. The CD results exhibit a striking effect of TFE on the spectra of BK, with sequence Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg, and the BK antagonist, with sequence D-Arg-Arg-Pro-Hyp-Gly-Thi-D-Ser-D-Cpg-Cpg-Arg [where Hyp is(More)
Numerical simulation of BIAcore sensorgrams has highlighted the need for concern about an assumption, inherent in current determinations of rate constants for macromolecular interactions, that the concentration of solute in the flowing phase remains constant at its injected value. This assumption is shown to be valid for systems with effective association(More)
A phenomenological theory of small zone gel chromatography is elaborated for kinetically controlled macromolecule-ligand interactions. Chromatography, direct binding experiments, and rate measurements are used for successful comparison of experimental behavior with theoretical elution profiles for the interaction of MAP-2 with two synthetic peptide(More)