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Does intracrine amplification provide a unifying principle for the
Does intracrine amplification provide a unifying principle for the

... variable levels of others, suggesting some commonality of regulation and/or intracrine-like regulatory networking. One protein commonly involved is tau, which also appears to be the primary protein in disorders such as progressive supranuclear palsy. Possible amplification mechanisms for tau, in add ...
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view as pdf - KITP Online
view as pdf - KITP Online

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Role of lipids in the translocation of proteins across membranes

... mutant. The ratio between these lipids is dependent on the type of cation present during growth. Apparently, restoration of growth requires a specific lipid composition in combination with a specific cation. Analysis of the phase behaviour of these lipids in the presence of the corresponding cation ...
- Wiley Online Library
- Wiley Online Library

... proteins (Vicente et al., 2006) and constricts to separate the two daughter cells. Of the 15 proteins that form the divisome – FtsZ, FtsA, ZipA, ZapA, FtsE, FtsX, FtsK, FtsQ, FtsB, FtsL, FtsW, FtsI, FtsN, AmiC and EnvC – 10 (underlined proteins) are essential for cell division (Goehring and Beckwith ...
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... also called virus particles (virions).  Virions is the virus particles which consist of two or three parts: the genetic material made from either DNA or RNA, a protein coat that protects these genes; and in some cases an envelope of lipids that surrounds the protein coat when they are outside a cel ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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