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  • occurs
  • Cleavage occurs between the Thr and Gly, with transient attachment through the Thr residue to the active site Cys residue, followed by transpeptidation that attaches the protein covalently to cell wall components. (wikipedia.org)
  • poles
  • Immunofluorescence microscopy indicated that the IseA-3xFLAG fusion protein was specifically localized at cell separation sites and poles on the vegetative cell surface in a similar manner of the d,l-endopeptidases. (biomedsearch.com)
  • walls
  • Common anti-bacterial agents that work by destroying vegetative cell walls do not affect endospores. (wikipedia.org)
  • Substrate proteins attached to cell walls by sortases include enzymes, pilins, and adhesion-mediating large surface glycoproteins. (wikipedia.org)
  • cytoplasmic
  • This review focuses on the nature of the sperm cell cytoplasmic projection and the potential communicative function of the male germ unit. (pollennetwork.org)
  • undergo
  • Here two cells line up, the micronuclei undergo meiosis, some of the haploid daughters are exchanged and then fuse to form new micronuclei and macronuclei. (wikipedia.org)
  • Under ideal growth conditions, cells may sometimes undergo two or three rounds of mitosis before the daughter cells are released from the old cell wall into the medium. (wikipedia.org)
  • growth
  • Overexpression of IseA caused a long-chained cell morphology in the exponential growth phase, indicating that IseA inhibits the cell separation D,L-endopeptidases in vivo. (biomedsearch.com)
  • Besides, overexpression of IseA in a cwlO disruptant affected cell growth, implying that IseA is also involved in the cell elongation event. (biomedsearch.com)
  • Thus, a single growth step may result in 4 or 8 daughter cells per mother cell. (wikipedia.org)
  • Flagella
  • Flagella are microtubule-based structures that allow cells to have controlled movement to a certain degree. (wikipedia.org)
  • Like other heterokont algae, the planktonic cells of G. semen possess two differently shaped flagella, which enable them to actively swim around in the water column. (wikipedia.org)
  • mitosis
  • B, C) Cells expressing GFP-Ima10 (green) entering mitosis counterstained with DAPI (blue). (nih.gov)
  • membrane
  • Despite the lack of cell wall of the ectoplasmic net, each individual cell is surrounded by a cell wall located close to the cell membrane and composed of a single layer of Golgi-derived circular scales, which overlap over a few nanometers, but do not fuse. (wikipedia.org)
  • The drop-shaped, vegetative cells of G. semen are up to 100 µm long, but can vary quite a bit in form and size, as they are only surrounded by a cell membrane instead of a cell wall. (wikipedia.org)
  • Under physical stress, small organelles that sit under the cell membrane and are called trichocysts, explode and release slimy threads. (wikipedia.org)
  • Food vacuoles are formed through phagocytosis and typically follow a particular path through the cell as their contents are digested and broken down by lysosomes so the substances the vacuole contains are then small enough to diffuse through the membrane of the food vacuole into the cell. (wikipedia.org)
  • Others are the alveoli, small vesicles under the cell membrane that are packed against it to form a pellicle maintaining the cell's shape, which varies from flexible and contractile to rigid. (wikipedia.org)
  • micronuclei
  • Note that the cell expressing GFP alone contains two micronuclei, an atypical state often observed after conjugative electroporation. (nih.gov)
  • osmotic pressure
  • Most ciliates also have one or more prominent contractile vacuoles, which collect water and expel it from the cell to maintain osmotic pressure, or in some function to maintain ionic balance. (wikipedia.org)
  • structures
  • The core also contains normal cell structures, such as ribosomes and other enzymes, but is not metabolically active. (wikipedia.org)
  • colony
  • The defining characteristic of the genera Labyrinthula is the formation of an ectoplasmic net around the cells and embedding the whole colony. (wikipedia.org)
  • All but four cells of the colony reproductive or about half reproductive and half vegetative. (wikipedia.org)
  • yeast
  • Coloured scanning electron micrograph (SEM) of cells of baker's yeast (Saccharomyces cerevisiae) from part of a dried, commercial yeast pellet. (pond5.com)
  • polysaccharide
  • Identification of distinct cell-surface sugar helped us to understand the role of polysaccharide for each cell type. (springer.com)
  • B is required to cross-link the pectic polysaccharide rhamnogalacturonan II ( RG-II ) in the cell wall, and the percentage of RG-II dimers is reduced in tls1 inflorescences, indicating that the defects may result from altered cell wall properties. (plantcell.org)
  • Wall
  • A novel cell surface protein, IseA, inhibits the cell wall lytic activities of these d,l-endopeptidases in vitro, and IseA negatively regulates the cell separation enzymes at the post-translational level. (biomedsearch.com)
  • It lacks a cell wall and contains no organelles. (wikipedia.org)
  • The main components of the cell wall are fructose or galactose-derived substances. (wikipedia.org)
  • Methanobacterium thermoautotrophicum), where cell wall LPXTG-mediated decoration has not been reported. (wikipedia.org)
  • it cleaves between the Gly and Thr of the LPXTG motif and catalyses the formation of an amide bond between the carboxyl-group of threonine and the amino-group of the cell-wall peptidoglycan. (wikipedia.org)
  • It is conceivable that S. aureus has evolved more than one pathway for the transport of 20 surface proteins to the cell wall envelope. (wikipedia.org)
  • This is due to its waxy cell wall which retains the malachite green dye even after the decolorizing process. (wikipedia.org)
  • The cell wall is silicified, as is characteristic of all diatoms. (wikipedia.org)
  • Single
  • In interphase cells centrin is localized as a single bright spot in the centriolar region. (fau.de)
  • This finding implicates these proteins in the differential permeability of the two nuclei and implies that nuclear pores with discrete specificities are assembled within a single cell. (nih.gov)
  • The chloroplasts themselves are bi-lobed, but some cells have two single-lobed chloroplasts. (wikipedia.org)
  • planktonic
  • Like other heterokont algae, the planktonic cells of G. semen possess two differently shaped flagella, which enable them to actively swim around in the water column. (wikipedia.org)
  • proteins
  • It is conceivable that S. aureus has evolved more than one pathway for the transport of 20 surface proteins to the cell wall envelope. (wikipedia.org)
  • fuse
  • Here two cells line up, the micronuclei undergo meiosis, some of the haploid daughters are exchanged and then fuse to form new micronuclei and macronuclei. (wikipedia.org)
  • posterior
  • Vacuoles full of the storage product known as chrysolaminarin are found near the posterior end of the cell. (wikipedia.org)
  • These are arranged into rows called kineties, which run from the anterior to posterior of the cell. (wikipedia.org)
  • The cell body is roughly cigar-shaped, rounded at the front, tapering at the posterior to a blunt point. (wikipedia.org)
  • distinct
  • Pigments such as chlorophyll c1 and fucoxanthin within the chloroplasts cause the cells to have a distinct, golden or yellow-brown colour. (wikipedia.org)
  • decrease
  • As with all Synurophytes, the inorganic scales produced by organisms in the genus Mallomonas also decrease in size as a response to increasing temperature, the same way as the cells themselves decrease. (wikipedia.org)
  • envelope
  • Second, ATP is ubiquitous in living cells, present in growing cells ( 16 ), and released from cells when they are killed by heat, disinfectants, or other treatments that disrupt the integrity of the cell envelope ( 36 ). (pubmedcentralcanada.ca)