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Gene Section EIF3C (eukaryotic translation initiation factor 3, subunit C)
Gene Section EIF3C (eukaryotic translation initiation factor 3, subunit C)

... and was overexpressed in meningiomas that had lost merlin expression. EIF3c overexpression can also transform NIH/3T3 fibroblasts, indicated by decreased doubling times, increased clonogenicity, increased viability, facilitated S-phase entry, attenuated apoptosis, formation of transformed foci, and ...
Introduction: plant cell wall proteins
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Molecules of Life - CCRI Faculty Web

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AP Protein Synthesis Quiz

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survey of biochemistry - School of Chemistry and Biochemistry

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... •The control in the DNA transcription process is very tight. •Cells are able to "turn on" or "turn off" genes when their products are not required in cell metabolism or control. • Regulation of gene expression is now only being to be fully understood and is a major area of research today. ...
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a version - SEA

... patch tests were suggestive of Taptic lysogens; however, stable lysogens were not formed as host cells were consistently lysed over time. The role of gp38 in the Taptic life cycle remains to be explored. In other experiments, the computational prediction that Butters gp31 is a transmembrane protein ...
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... • The mRNA is either read by another ribosome or it is recycled so its nucleotides can be used again. • The ribosome large and small subunit falls apart from each other ...
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書面報告

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osmolarity regulates gene expression in intervertebral disc cells
osmolarity regulates gene expression in intervertebral disc cells

... within the top 2% of highest average intensity values (n=174), a significant number related to extracellular matrix (21, 28%) and cytoskeleton proteins (12, 16%). Many of these proteins were recognized as important products of fibrochondrocyte biosynthesis, including types I, III and VI collagen, de ...
Disentangling factors of gene expression regulation in human
Disentangling factors of gene expression regulation in human

... Additionally,  in  higher  eukaryotes  the  same  gene  can  potentially  lead  to  a  number  of  different  transcripts  through  alternative  splicing.  We  have  recently  demonstrated  that  in  human  tissues  most  genes  express  only  one  transcript  to  significantly  higher  levels  than ...
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Protein moonlighting



Protein moonlighting (or gene sharing) is a phenomenon by which a protein can perform more than one function. Ancestral moonlighting proteins originally possessed a single function but through evolution, acquired additional functions. Many proteins that moonlight are enzymes; others are receptors, ion channels or chaperones. The most common primary function of moonlighting proteins is enzymatic catalysis, but these enzymes have acquired secondary non-enzymatic roles. Some examples of functions of moonlighting proteins secondary to catalysis include signal transduction, transcriptional regulation, apoptosis, motility, and structural.Protein moonlighting may occur widely in nature. Protein moonlighting through gene sharing differs from the use of a single gene to generate different proteins by alternative RNA splicing, DNA rearrangement, or post-translational processing. It is also different from multifunctionality of the protein, in which the protein has multiple domains, each serving a different function. Protein moonlighting by gene sharing means that a gene may acquire and maintain a second function without gene duplication and without loss of the primary function. Such genes are under two or more entirely different selective constraints.Various techniques have been used to reveal moonlighting functions in proteins. The detection of a protein in unexpected locations within cells, cell types, or tissues may suggest that a protein has a moonlighting function. Furthermore, sequence or structure homology of a protein may be used to infer both primary function as well as secondary moonlighting functions of a protein.The most well-studied examples of gene sharing are crystallins. These proteins, when expressed at low levels in many tissues function as enzymes, but when expressed at high levels in eye tissue, become densely packed and thus form lenses. While the recognition of gene sharing is relatively recent—the term was coined in 1988, after crystallins in chickens and ducks were found to be identical to separately identified enzymes—recent studies have found many examples throughout the living world. Joram Piatigorsky has suggested that many or all proteins exhibit gene sharing to some extent, and that gene sharing is a key aspect of molecular evolution. The genes encoding crystallins must maintain sequences for catalytic function and transparency maintenance function.Inappropriate moonlighting is a contributing factor in some genetic diseases, and moonlighting provides a possible mechanism by which bacteria may become resistant to antibiotics.
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