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Profilin association with monomeric actin in
Profilin association with monomeric actin in

... antibodies bind in the cytoplasm and to regions of plasma membrane free of actin filaments in leukocytes and stimulated platelets (Hartwig et al., 1989). Polyphosphoinositides may mediate this binding to membranes (Lassing and Lindberg, 1985), but the fraction of profilin bound to membranes has not ...
Mitochondrial trafficking and anchoring in neurons
Mitochondrial trafficking and anchoring in neurons

... Correspondence to Zu-Hang Sheng: [email protected] Abbreviations used in this paper: KIF5, kinesin-1 family; MT, microtubule. ...
Triglyceride-Rich Lipoproteins as Agents of Innate Immunity
Triglyceride-Rich Lipoproteins as Agents of Innate Immunity

... It has been recognized for 120 years that the interaction between LPS and lipoproteins is dependent on plasma factors [8, 13]. Although several plasma proteins can interact with LPS, none have been more extensively studied than CD14 [18] and the acute-phase reactant LPS-binding protein (LBP) [19, 20 ...
lysis strategy of streptococcus pneumoniae bacteriophages
lysis strategy of streptococcus pneumoniae bacteriophages

... lysin by the same experimental procedures after culture treatment with the Sec inhibitor sodium azide. It was found that the phage lytic enzyme is possibly exported by the Sec system of pneumococci in spite of the striking absence of a signal sequence that could target it to the extracytoplasmic env ...
Homologous pairing and the role of pairing centers in meiosis
Homologous pairing and the role of pairing centers in meiosis

... Homologous pairing and the telomere bouquet Before homologous chromosomes recombine and form a bivalent, they must find each other within the cell nucleus. In most organisms, the initiation of homologous pairing occurs at numerous sites along chromosomes by a mechanism that still remains unclear. Th ...
PATELLIN1/2 interact with CVL1 and CVP2 to regulate vascular
PATELLIN1/2 interact with CVL1 and CVP2 to regulate vascular

Partial Purifiaction of β-1,3-glucan synthases and
Partial Purifiaction of β-1,3-glucan synthases and

... Recent studies of different β-1,3-glucans have identified the pharmacological activities of paramylon, a Euglena derived β-1,3-glucan. Although paramylon has relatively low immune-stimulating activities, chemical modification of the paramylon granule increased immune-potentiation with specific antim ...
Type XIII collagen. Structural and functional characterization of the
Type XIII collagen. Structural and functional characterization of the

... trimerization of type XIII collagen chains was initiated by 21 amino acid residues adjacent to the transmembrane domain on the extracellular side, and this sequence was found to be conserved in several other collagenous transmembrane proteins. In addition to the transmembrane form, the ectodomain of ...
Phloem transport: a review of mechanisms and
Phloem transport: a review of mechanisms and

... shorter, overlapping sieve tubes with apoplastic loading steps between them. Lang (1979) called these intervening loading steps ‘relays’. In this relay system, solutes are energetically transported from one unit to the next, providing a boost in pressure at the relays along the transport pathway. Th ...
The ultrastructure of a doliolid and a copepod
The ultrastructure of a doliolid and a copepod

... The goal of this study was to determine the morphology and ultrastructure of doliolid pellets using light, epifluorescence and transmission electron microscopy and compare the results to observations of calanoid copepod pellets. For (ultra)structural analyses, pellets of gonozooids of Dolioletta geg ...
Phloem transport: A review of mechanisms and controls (PDF
Phloem transport: A review of mechanisms and controls (PDF

... shorter, overlapping sieve tubes with apoplastic loading steps between them. Lang (1979) called these intervening loading steps ‘relays’. In this relay system, solutes are energetically transported from one unit to the next, providing a boost in pressure at the relays along the transport pathway. Th ...
Therapeutic targeting of autophagy in neurodegenerative and
Therapeutic targeting of autophagy in neurodegenerative and

... which evolve into double-membraned, sacshaped structures. After the edges of the phagophores extend and fuse, engulfing a portion of cytoplasm, they become known as autophagosomes. These are then trafficked along microtubules in a direction that is biased toward the perinuclear microtubule-organizin ...
Exosomes: Implications in HIV-1 Pathogenesis
Exosomes: Implications in HIV-1 Pathogenesis

... classes of EV include (I) apoptotic bodies that are generated by plasma membrane blebbing during cell death and (II) microvesicles [also known as microparticles or ectosomes] that are assembled at and are released from eukaryotic cellular plasma membranes via ectocytosis. Comparative analyses of var ...
PDF
PDF

... embryo mouse, targeted disruption of Wnt3a results in the loss of caudal somites and the tailbud (Takada et al., 1993). In Xenopus embryos, antagonism of Wnt signaling allows the formation of anterior structures at the expense of posterior ones (Leyns et al., 1997; Glinka et al., 1998). This is also ...
Focusing on unpolymerized actin.
Focusing on unpolymerized actin.

... while the total concentration of polymerized actin remains roughly constant. Net polymerization occurs primarily at the cell front and net depolymerization occurs, depending on cell type, throughout or at the rear of the lamella (Wang, 1985; Symons and Mitchison, 1991; Theriot and Mitchison, 1992; Z ...
FOCAL ADHESION KINASE: IN COMMAND AND CONTROL OF
FOCAL ADHESION KINASE: IN COMMAND AND CONTROL OF

AcmA of Lactococcus lactis is an N-acetylglucosaminidase
AcmA of Lactococcus lactis is an N-acetylglucosaminidase

... containing either pGK13, not encoding AcmA (2), pGKAL1, encoding enzyme A3 (3), pGKAL3, encoding enzyme A2 (4), pGKAL4, encoding enzyme A1 (5), pGKAL5, encoding enzyme A0 (6), pGKAL6, encoding enzyme A1.5 (7), or pGKAL7, encoding enzyme A4 (8). Cell extracts and supernatant samples were separated in ...
boron in plant structure and function
boron in plant structure and function

... now conclude that phloem movement of boron depends on the sugar or polyol transport molecules used by the particular plant. It could be of interest that a major crop in the United States, soybean, contains large quantities of the polyol pinitol and shows some response to foliar applications of boron ...
Article (Published version)
Article (Published version)

... Gli1, Gli2 and Gli3 are required for the development of primary neurons Several morpholino-modified antisense oligonucleotides (MO) were designed overlapping or adjacent to the initiator ATG of each Gli mRNA. Initial tests for efficacy of their ability to inhibit target mRNA translation used in vitr ...
A PP2A-B55 recognition signal controls substrate
A PP2A-B55 recognition signal controls substrate

... It has long been known that mitotic kinases, substrates of the anaphase-promoting complex/cyclosome, and many other regulatory enzymes have specific linear recognition motifs. However, these often fail to adequately describe the behavior seen in cells, where proteins sharing similar or sometimes ide ...
Cell Calcium Viral calciomics: Interplays between Ca2+ and virus
Cell Calcium Viral calciomics: Interplays between Ca2+ and virus

... Fig. 2. Virus infection selectively perturbs pro-apoptotic and pro-survival ER-mitochondria Ca2+ signaling. Upon engagement of receptors, the production of IP3 leads to the activation of IP3 R and release of Ca2+ from internal store. The decrease of ER Ca2+ concentration is subsequently sensed by th ...
Cdc6 in S phase in human cells - Journal of Cell Science
Cdc6 in S phase in human cells - Journal of Cell Science

... implying that in late G1, nuclear protein export does not control nuclear Cdc6 levels. However, as a number of soluble export factors can be lost from isolated nuclei (Kehlenbach et al., 1998) it is likely that nuclear protein export does not function optimally in our system. This has allowed identi ...
Endoplasmic Microtubules Configure the Subapical Cytoplasm and
Endoplasmic Microtubules Configure the Subapical Cytoplasm and

Mitochondrial dynamics, mitophagy and cardiovascular disease
Mitochondrial dynamics, mitophagy and cardiovascular disease

... & Chan, 2005; Chan, 2006). Additionally, MFN2 has been implicated in several other physiological functions, such as modulation of energetic processes, endoplasmic reticulum–mitochondria coupling, and regulation of mitophagy, a process through which mitochondria are engulfed by autophagosomes and del ...
`Sarcomeres` of smooth muscle - Journal of Cell Science
`Sarcomeres` of smooth muscle - Journal of Cell Science

... Morphometric and statistical analysis Sampling and analysis were carried out ‘blind’. The codes indicating experimental conditions were revealed only after the analysis of each group was finished. Specialized image analysis software (Image Pro-Plus 3.0) was used to help with the manual counting of t ...
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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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