The Plasma Membrane of the Cyanobacterium
... et al., 2004) and by the murein binding domain found in the PsaB subunit (Grizot and Buchanan, 2004). Associated with the cytoplasmic surface of the plasma membrane is an 80-nm-thick electron-dense layer attributed to the phycobilisomes (Guglielmi et al., 1981), which, due to their bundle-shape stru ...
... et al., 2004) and by the murein binding domain found in the PsaB subunit (Grizot and Buchanan, 2004). Associated with the cytoplasmic surface of the plasma membrane is an 80-nm-thick electron-dense layer attributed to the phycobilisomes (Guglielmi et al., 1981), which, due to their bundle-shape stru ...
Role of cholesterol in SNARE-mediated trafficking on intracellular
... proteins showing the position and type of cholesterolbinding motifs in the juxtamembrane or transmembrane domains (see Box 1). Two SNARE proteins that bind to cholesterol have not been included in this figure; the first is Sec22a, an unusual t-(R)-SNARE protein with the yeast homolog being located a ...
... proteins showing the position and type of cholesterolbinding motifs in the juxtamembrane or transmembrane domains (see Box 1). Two SNARE proteins that bind to cholesterol have not been included in this figure; the first is Sec22a, an unusual t-(R)-SNARE protein with the yeast homolog being located a ...
Bacterial Growth and Cell Division: a Mycobacterial Perspective
... synthesis, researchers found that mycobacterial PG contains both N-glycolyl and N-acetyl modifications (254). The researchers noted that use of D-cycloserine resulted in all of the precursors becoming N-glycolylmuramic acid. Second, approximately 25% of cross-links in the PG of M. smegmatis (and oth ...
... synthesis, researchers found that mycobacterial PG contains both N-glycolyl and N-acetyl modifications (254). The researchers noted that use of D-cycloserine resulted in all of the precursors becoming N-glycolylmuramic acid. Second, approximately 25% of cross-links in the PG of M. smegmatis (and oth ...
Bacteria under stress by complement and coagulation
... MBL and ficolins in the LP, mediates activation of the classical pathway (CP). C1q is classically known to bind to Fc regions of IgG or IgM antibodies on the microbial surface. For some bacteria like Neisseria meningitidis, antibodies are essential for an effective complement response (Granoff, 2009 ...
... MBL and ficolins in the LP, mediates activation of the classical pathway (CP). C1q is classically known to bind to Fc regions of IgG or IgM antibodies on the microbial surface. For some bacteria like Neisseria meningitidis, antibodies are essential for an effective complement response (Granoff, 2009 ...
Laboratory Exercise # 6: Gram Stain Purpose: The student will
... Laboratory Exercise # 6: Gram Stain ...
... Laboratory Exercise # 6: Gram Stain ...
Spatiotemporal distribution of different extracellular polymeric
... outer and inner diam. 2170 6 250 nm and 640 6 90 nm, respectively; n 5 29) at the regions where cells were previously reversibly adhered. The central hole diameter of those structures agrees with the observed (Fig. 1b) and expected size for X. fastidiosa CPR (varying between ,0.5–1 mm). The observab ...
... outer and inner diam. 2170 6 250 nm and 640 6 90 nm, respectively; n 5 29) at the regions where cells were previously reversibly adhered. The central hole diameter of those structures agrees with the observed (Fig. 1b) and expected size for X. fastidiosa CPR (varying between ,0.5–1 mm). The observab ...
Leveau2008 - Johan Leveau
... cells and releasing nutrients for bacterial growth. By contrast, extracellular biotrophs do not kill fungal hyphae, but live in close proximity, often colonizing hyphal surfaces, and using nutrients exuded from living fungal cells. Biotrophs are able to tolerate or suppress the production of anti-ba ...
... cells and releasing nutrients for bacterial growth. By contrast, extracellular biotrophs do not kill fungal hyphae, but live in close proximity, often colonizing hyphal surfaces, and using nutrients exuded from living fungal cells. Biotrophs are able to tolerate or suppress the production of anti-ba ...
Identification and localization of the multiple bacterial
... involvement in catabolic processes, such as hydrogen metabolism, to anabolic processes, such as nitrogen fixation (Brune & Stingl, 2005; Ohkuma, 2008). Another function, shown in some cases, is the involvement of ectosymbiotic bacteria in motility, with the flagella of the symbionts propelling their ...
... involvement in catabolic processes, such as hydrogen metabolism, to anabolic processes, such as nitrogen fixation (Brune & Stingl, 2005; Ohkuma, 2008). Another function, shown in some cases, is the involvement of ectosymbiotic bacteria in motility, with the flagella of the symbionts propelling their ...
Funguslike Protists
... Use Target Reading Skills As you read, make an outline about protists that you can use for review. Use the red section headings for the main topics and blue headings for the subtopics. Protists I. What is a protist? II. Animal-like protists A. Protozoans with pseudopods ...
... Use Target Reading Skills As you read, make an outline about protists that you can use for review. Use the red section headings for the main topics and blue headings for the subtopics. Protists I. What is a protist? II. Animal-like protists A. Protozoans with pseudopods ...
In-Cell Solid-State NMR - Institut de Biologie Physico
... Various isolated (but hydrated) cell walls have also been probed by 13C MAS NMR and DNP. The group of JeanPierre Simorre compared the organization of peptidoglycan in various bacteria, including its metal-binding sites and constants, cross-linkage, flexibility, and dynamics (18,47). More recently, t ...
... Various isolated (but hydrated) cell walls have also been probed by 13C MAS NMR and DNP. The group of JeanPierre Simorre compared the organization of peptidoglycan in various bacteria, including its metal-binding sites and constants, cross-linkage, flexibility, and dynamics (18,47). More recently, t ...
Vesicular transport of newly synthesized opsin from the Golgi
... a typical intrinsic membrane protein within ROS disks, we wished to determine which cell constituents might participate in its transport across the inner segment. Prior autoradiographic and radiobiochemical studies showed that most of the radiolabeled protein migrated from the Golgi past the ellipso ...
... a typical intrinsic membrane protein within ROS disks, we wished to determine which cell constituents might participate in its transport across the inner segment. Prior autoradiographic and radiobiochemical studies showed that most of the radiolabeled protein migrated from the Golgi past the ellipso ...
Left–right asymmetry: cilia stir up new surprises in the node
... Cilia are microtubule-based hair-like organelles that project from the surface of most eukaryotic cells. They play critical roles in cellular motility, fluid transport and a variety of signal transduction pathways. While we have a good appreciation of the mechanisms of ciliary biogenesis and the det ...
... Cilia are microtubule-based hair-like organelles that project from the surface of most eukaryotic cells. They play critical roles in cellular motility, fluid transport and a variety of signal transduction pathways. While we have a good appreciation of the mechanisms of ciliary biogenesis and the det ...
Biogenesis and origin of thylakoid membranes
... chloroplasts are found close to the tip. Ultra-thin sections revealed that during the progress of chloroplast maturation the internal membrane system builds up in consecutive phases. First, long lamella are formed which are later complemented by smaller, disc-shaped structures that associate into so ...
... chloroplasts are found close to the tip. Ultra-thin sections revealed that during the progress of chloroplast maturation the internal membrane system builds up in consecutive phases. First, long lamella are formed which are later complemented by smaller, disc-shaped structures that associate into so ...
19-1 Bacteria
... Antibiotics work by breaking down the cell wall of gram positive bacteria. Gram negative one are not as affected as their cell wall, so it is important to know what type of bacterial infection one has. ...
... Antibiotics work by breaking down the cell wall of gram positive bacteria. Gram negative one are not as affected as their cell wall, so it is important to know what type of bacterial infection one has. ...
CENP-E Is a Plus End–Directed Kinetochore Motor Required for
... and Salmon, 1994). Initially, the oscillatory movements of bioriented chromosomes have a net bias toward the spindle equator. Once an equatorial position is achieved, chromosomes continue to oscillate much in the same manner as during initial movement to the spindle midzone, except that these moveme ...
... and Salmon, 1994). Initially, the oscillatory movements of bioriented chromosomes have a net bias toward the spindle equator. Once an equatorial position is achieved, chromosomes continue to oscillate much in the same manner as during initial movement to the spindle midzone, except that these moveme ...
Multiple Roles of the Cytoskeleton in Bacterial Autophagy
... assembly site (PAS). (II) In the case of ubiquitin (Ub)-mediated selective autophagy, actin can promote the fusion of autophagosomes and lysosomes to degrade ubiquitinated substrates. (III) After escaping from the phagosome to the cytosol, some bacterial pathogens initiate actin-based motility; mos ...
... assembly site (PAS). (II) In the case of ubiquitin (Ub)-mediated selective autophagy, actin can promote the fusion of autophagosomes and lysosomes to degrade ubiquitinated substrates. (III) After escaping from the phagosome to the cytosol, some bacterial pathogens initiate actin-based motility; mos ...
A Cell is Like A (100 points) You will compare an animal or plant
... ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, vacuole. o Plant Cell Projects MUST include the following 12 organelles: nucleus, ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, ...
... ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, vacuole. o Plant Cell Projects MUST include the following 12 organelles: nucleus, ribosomes, cytoplasm, mitochondria, endoplasmic reticulum, Golgi body, cell membrane, chromosomes, lysosome, ...
Figures and figure supplements
... Figure 2. Algal-bacterial co-cultures. (a) Scanning electron microscopy (SEM) image of E. huxleyi (CCMP3266) pure algal culture. (b) SEM image of P. inhibens (DMS17395) pure bacterial culture. (c) Overlay image of a pure culture of P. inhibens bacteria (phase contrast microscopy, grey) stained with ...
... Figure 2. Algal-bacterial co-cultures. (a) Scanning electron microscopy (SEM) image of E. huxleyi (CCMP3266) pure algal culture. (b) SEM image of P. inhibens (DMS17395) pure bacterial culture. (c) Overlay image of a pure culture of P. inhibens bacteria (phase contrast microscopy, grey) stained with ...
Antibacterial activity of Nicolaia speciosa fruit extract
... number of samples and effective to separate the active components of extract based on its polarity (Houghton and Raman, 1998). The extraction process was carried out starting with a non polar condition using hexane, followed by a semi-polar condition using ethyl acetate and finally using a polar con ...
... number of samples and effective to separate the active components of extract based on its polarity (Houghton and Raman, 1998). The extraction process was carried out starting with a non polar condition using hexane, followed by a semi-polar condition using ethyl acetate and finally using a polar con ...
eIF-3 - Universidad Autónoma de San Luis Potosí
... eIF-6 is required to maintain large subunits in their dissociated state. eIF-2, eIF-3 & eIF-6 are released when the large subunit joins the initiation complex (60S will not load otherwise). ...
... eIF-6 is required to maintain large subunits in their dissociated state. eIF-2, eIF-3 & eIF-6 are released when the large subunit joins the initiation complex (60S will not load otherwise). ...
Growth of bacteria in seawater filtered through 0.2 pm Nuclepore
... vacuum pressure of less than 100 mm Hg. This pressure differential (or a value slightly larger) has been the upper limit used by many others performing this type of experiment (Fuhrman & Azam 1980, Ferguson et al. 1984, Kirchman et al. 1984, Wright & Coffin 1984a, Ducklow & Hill 1985a, Sieracki et a ...
... vacuum pressure of less than 100 mm Hg. This pressure differential (or a value slightly larger) has been the upper limit used by many others performing this type of experiment (Fuhrman & Azam 1980, Ferguson et al. 1984, Kirchman et al. 1984, Wright & Coffin 1984a, Ducklow & Hill 1985a, Sieracki et a ...
Mechanisms Shaping the Membranes of Cellular Organelles
... occurs most often by fusion or fission. During fusion two separate membranes merge into one, whereas during fission a continuous membrane is divided into two separate ones. For example, ER tubules can fuse with an existing tubule to form a three-way junction. How the characteristic shape of an organel ...
... occurs most often by fusion or fission. During fusion two separate membranes merge into one, whereas during fission a continuous membrane is divided into two separate ones. For example, ER tubules can fuse with an existing tubule to form a three-way junction. How the characteristic shape of an organel ...
The proteomics of plant cell membranes
... 2004), mitochondria (Kruft et al., 2001; Millar et al., 2001; Millar and Heazlewood, 2003; Heazlewood et al., 2004), mitochondrial membrane (Brugiere et al., 2004), peroxisome (Fukao et al., 2002; Carter et al., 2004), and tonoplast proteome (Shimaoka et al., 2004), as well as the Arabidopsis cell w ...
... 2004), mitochondria (Kruft et al., 2001; Millar et al., 2001; Millar and Heazlewood, 2003; Heazlewood et al., 2004), mitochondrial membrane (Brugiere et al., 2004), peroxisome (Fukao et al., 2002; Carter et al., 2004), and tonoplast proteome (Shimaoka et al., 2004), as well as the Arabidopsis cell w ...
Charge asymmetry in the proteins of the outer membrane
... exteriors that are extremely hydrophobic and protein-facing interiors that are similarly hydrophobic to the hydrophobic cores of soluble proteins (Rees et al., 1989; Rees and Eisenberg, 2000). The structures of OMBBs, on the other hand, are such that they are more like inside-out soluble proteins. T ...
... exteriors that are extremely hydrophobic and protein-facing interiors that are similarly hydrophobic to the hydrophobic cores of soluble proteins (Rees et al., 1989; Rees and Eisenberg, 2000). The structures of OMBBs, on the other hand, are such that they are more like inside-out soluble proteins. T ...
Functions of the Arabidopsis kinesin superfamily of microtubule
... potentially could contribute to bundling of CMTs. However, the atk5 mutant has normal CMT organization (Ambrose et al. 2005), indicating that it does not play an essential role in CMT organization. CMTs are dynamic at both ends and their dynamic properties are important for array organization (Shaw ...
... potentially could contribute to bundling of CMTs. However, the atk5 mutant has normal CMT organization (Ambrose et al. 2005), indicating that it does not play an essential role in CMT organization. CMTs are dynamic at both ends and their dynamic properties are important for array organization (Shaw ...
Flagellum
A flagellum (/fləˈdʒɛləm/; plural: flagella) is a lash-like appendage that protrudes from the cell body of certain prokaryotic and eukaryotic cells. The word flagellum in Latin means whip. The primary role of the flagellum is locomotion but it also often has function as a sensory organelle, being sensitive to chemicals and temperatures outside the cell. Flagella are organelles defined by function rather than structure. There are large differences between different types of flagella; the prokaryotic and eukaryotic flagella differ greatly in protein composition, structure, and mechanism of propulsion. However, both are used for swimming.An example of a flagellate bacterium is the ulcer-causing Helicobacter pylori, which uses multiple flagella to propel itself through the mucus lining to reach the stomach epithelium. An example of a eukaryotic flagellate cell is the mammalian sperm cell, which uses its flagellum to propel itself through the female reproductive tract. Eukaryotic flagella are structurally identical to eukaryotic cilia, although distinctions are sometimes made according to function and/or length.