Results 21 to 30 of about 6,092,811 (364)
Guanine nucleotide-binding protein beta and gamma subunits form a tightly bound complex that can only be separated by denaturation. Assembly of beta and gamma subunits is a complicated process. The beta 1 and gamma 2 subunits can be synthesized in vitro in rabbit reticulocyte lysate and then assembled into dimers, but beta 1 cannot form beta gamma ...
Denise J. Spring+4 more
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Structural similarity and classification of protein interaction interfaces. [PDF]
Interactions between proteins play a key role in many cellular processes. Studying protein-protein interactions that share similar interaction interfaces may shed light on their evolution and could be helpful in elucidating the mechanisms behind ...
Nan Zhao+3 more
doaj +1 more source
The simultaneous improvement of grain quality and yield of cereal crops is a major challenge for modern agriculture. Here we show that a rice grain yield quantitative trait locus qLGY3 encodes a MADS-domain transcription factor OsMADS1, which acts as a ...
Qian Liu+13 more
semanticscholar +1 more source
Subunit Exchange in Protein Complexes
Over the past 50 years, protein complexes have been studied with techniques such as X-ray crystallography and electron microscopy, generating images which although detailed are static and homogeneous. More recently, limited application of in vivo fluorescence and other techniques has revealed that many complexes previously thought stable and ...
Tusk, S, Delalez, N, Berry, R
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The Est3 protein is a subunit of yeast telomerase [PDF]
EST1, EST2, EST3 and TLC1 function in a single pathway for telomere replication in the yeast Saccharomyces cerevisiae [1] [2], as would be expected if these genes all encode components of the same complex. Est2p, the reverse transcriptase protein subunit, and TLC1, the templating RNA, are subunits of the catalytic core of yeast telomerase [3] [4] [5 ...
Sara K. Evans+3 more
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Characterization of alkali-modified soy protein concentrate [PDF]
To study the influence of the preparation mode, including mild alkali modification, of soy protein concentrate on soluble protein content and composition, some of its nutritive and functional properties were investigated. Soy protein concentrate prepared
Barać Miroljub B.+2 more
doaj +1 more source
Shigella flexneri is the most common causal agent of shigellosis. Its pili are composed of pili protein subunits. Adhesion molecules can be found on the pili and outer membrane proteins (Omp).
Avin Ainur Fitrianingsih+6 more
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Mass Fractal Dimension of the Ribosome and Implication of its Dynamic Characteristics [PDF]
Self-similar properties of the ribosome in terms of the mass fractal dimension are investigated. We find that both the 30S subunit and the 16S rRNA have fractal dimensions of 2.58 and 2.82, respectively; while the 50S subunit as well as the 23S rRNA has the mass fractal dimension close to 3, implying a compact three dimensional macromolecule.
arxiv +1 more source
Subunits of the Drosophila actin-capping protein heterodimer regulate each other at multiple levels.
The actin-Capping Protein heterodimer, composed of the α and β subunits, is a master F-actin regulator. In addition to its role in many cellular processes, Capping Protein acts as a main tumor suppressor module in Drosophila and in humans, in part, by ...
Ana Rita Amândio+3 more
doaj +1 more source
A comparison of the innate flexibilities of six chains in F$_1$-ATPase with identical secondary and tertiary folds; 3 active enzymes and 3 structural proteins [PDF]
The $\alpha$ and $\beta$ subunits comprising the hexameric assembly of F1-ATPase share a high degree of structural identity, though low primary identity. Each subunit binds nucleotide in similar pockets, yet only $\beta$ subunits are catalytically active. Why? We re-examine their internal symmetry axes and observe interesting differences. Dividing each
arxiv +1 more source