نتایج جستجو برای: zipper
تعداد نتایج: 3644 فیلتر نتایج به سال:
In this study, we describe synthesis, characterization, and zipper assembly of yellow p-oligophenyl naphthalenediimide (POP-NDI) donor-acceptor hybrids. Moreover, we disclose, for the first time, results from the functional comparison of zipper and layer-by-layer (LBL) assembly as well as quartz crystal microbalance (QCM), atomic force microscopy (AFM), and molecular modeling data on zipper ass...
Aureochrome1 is a blue-light-receptor protein identified in a stramenopile alga, Vaucheria frigida. Photozipper (PZ) is an N-terminally truncated, monomeric, V. frigida aureochrome1 fragment containing a basic leucine zipper (bZIP) domain and a light-oxygen-voltage (LOV)-sensing domain. PZ dimerizes upon photoexcitation and consequently increases its affinity for the target sequence. In the pre...
c-Jun and c-Fos are major components of the transcriptional complex AP-1. Here, we investigate the nuclear import pathway(s) of the transcription factor c-Jun. c-Jun bound specifically to the nuclear import receptors importin beta, transportin, importin 5, importin 7, importin 9, and importin 13. In digitonin-permeabilized cells, importin beta, transportin, importin 7, and importin 9 promoted e...
The purine-rich strand d(GTACGGGACCGA)(n) of the Drosophila centromeric dodeca-satellite sequence is highly conserved and was found to form stable fold-back structures in which the homopurine 5'-GGGA-3' sequence was determined to play a crucial role. Here, we report the stable formation of the d(GGGA)(2) motif in the stem of a DNA hairpin closed by a single-residue d(ACC) loop. Similar to the z...
The human protein NEFA (DNA binding, EF-hand, Acidic region) has previously been isolated from a KM3 cell line and immunolocalized on the plasma membrane, in the cytoplasma, and in the culture medium. Sequence analysis of a cDNA clone encoding NEFA identified a hydrophilic domain, two EF-hands, and a leucine zipper at the C-terminus. These characters are shared with nucleobindin (Nuc). In this ...
The leucine zipper proteins are a group of transcriptional regulators that dimerize to form a DNA binding domain. It has been proposed that this dimerization results from the hydrophobic association of the alpha-helices of two leucine zipper monomers into a coiled coil. We propose a model for a coiled coil based on a periodic hydrophobic-hydrophilic amino acid motif found in the leucine zipper ...
A dynamic actomyosin cytoskeleton drives many morphogenetic events. Conventional nonmuscle myosin-II (myosin) is a key chemomechanical motor that drives contraction of the actin cytoskeleton. We have explored the regulation of myosin activity by performing genetic screens to identify gene products that collaborate with myosin during Drosophila morphogenesis. Specifically, we screened for second...
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