المحاضرات
... historical picture of event occurring during germ cell production, epididymal sperm cell transport and storage. This evaluation can be help to diagnose a male factor of infertility with itُ s possible etiology. Sperm morphology is considered a stable parameter as apposed to motility since itُ s affe ...
... historical picture of event occurring during germ cell production, epididymal sperm cell transport and storage. This evaluation can be help to diagnose a male factor of infertility with itُ s possible etiology. Sperm morphology is considered a stable parameter as apposed to motility since itُ s affe ...
Protein Synthesis within Dendrites: Glycosylation
... However, it is not known whether these organelles participate in the local synthesis and processing of proteins. The goal of the present study was to define whether the machinery for protein glycosylation is present in the dendrites of hippocampal neurons in culture. These are the same cells in whic ...
... However, it is not known whether these organelles participate in the local synthesis and processing of proteins. The goal of the present study was to define whether the machinery for protein glycosylation is present in the dendrites of hippocampal neurons in culture. These are the same cells in whic ...
Ca2+ signalling and control of guard-cell volume in stomatal
... in the past four years, have yielded some of the most exciting new findings in plant cell signalling. Stomatal movements are achieved through changes in guard-cell volume, which, in turn, are driven by the accumulation (during opening) and loss (during closing) of osmotically active solutes (i.e. KC ...
... in the past four years, have yielded some of the most exciting new findings in plant cell signalling. Stomatal movements are achieved through changes in guard-cell volume, which, in turn, are driven by the accumulation (during opening) and loss (during closing) of osmotically active solutes (i.e. KC ...
A Nanobody-Based System Using Fluorescent Proteins as Scaffolds
... Characterization of the GFP-Dependent Transcription System In Vitro The induced transcription output in 293T cells was found to be dependent on all components of the system, as removal of GFP, DBDG, or ADG from the transfection mixture resulted in loss of reporter activity (Figures 2B and S1). Repor ...
... Characterization of the GFP-Dependent Transcription System In Vitro The induced transcription output in 293T cells was found to be dependent on all components of the system, as removal of GFP, DBDG, or ADG from the transfection mixture resulted in loss of reporter activity (Figures 2B and S1). Repor ...
Introduction: Keylevels of Biocommunication in Fungi
... pragmatic (context dependent) and semantic (content-specific) rules. On one side, development and growth of fungal organisms depends upon successful communication processes within, and between, cells of fungal organisms. However, on the other side, sign mediated interactions are necessary to coordin ...
... pragmatic (context dependent) and semantic (content-specific) rules. On one side, development and growth of fungal organisms depends upon successful communication processes within, and between, cells of fungal organisms. However, on the other side, sign mediated interactions are necessary to coordin ...
Gutsy moves in mice: cellular and molecular dynamics of endoderm
... mouse embryos [17,18]. In this set of studies, cells of the epiblast and VE were individually labelled, embryos incubated for various time periods and then the position of their cellular descendants noted. Derivatives of epiblast cells from the region in the vicinity of the anterior primitive streak ...
... mouse embryos [17,18]. In this set of studies, cells of the epiblast and VE were individually labelled, embryos incubated for various time periods and then the position of their cellular descendants noted. Derivatives of epiblast cells from the region in the vicinity of the anterior primitive streak ...
Acetylation of Polysaccharides in Plant Cell Wall
... According to recent report released by United Nations, the global population will not stabilise until the end of 21st century. It will go on increasing from current 7.2 billion to 12.3 billion in 2100 (Gerland et al., 2014). To meet the food and energy demand for such a huge population, we need to f ...
... According to recent report released by United Nations, the global population will not stabilise until the end of 21st century. It will go on increasing from current 7.2 billion to 12.3 billion in 2100 (Gerland et al., 2014). To meet the food and energy demand for such a huge population, we need to f ...
The regulation and plasticity of root hair patterning
... whereas cells that are in contact with only one cortical cell (i.e. those in an ‘N position’) enter the non-hair cell developmental program. The process of root hair formation can be separated into two discrete phases: initiation and tip growth (Fig. 2B; Dolan et al., 1994; Grierson et al., 2014). A ...
... whereas cells that are in contact with only one cortical cell (i.e. those in an ‘N position’) enter the non-hair cell developmental program. The process of root hair formation can be separated into two discrete phases: initiation and tip growth (Fig. 2B; Dolan et al., 1994; Grierson et al., 2014). A ...
Regulated Expression of Vimentin cDNA in Cells in the Presence
... Total cellular RNA was isolated from mouse L-929 cells by the guanidinium thi0cyanate procedure of Han et al. (1987) and poly A+ RNA selected by oligo (dT)-cellulose chromatography. This RNA was used for DNA synthesis using a commercial eDNA synthesis kit (Pharmacia Fine Chemicals, Piscataway, NJ) t ...
... Total cellular RNA was isolated from mouse L-929 cells by the guanidinium thi0cyanate procedure of Han et al. (1987) and poly A+ RNA selected by oligo (dT)-cellulose chromatography. This RNA was used for DNA synthesis using a commercial eDNA synthesis kit (Pharmacia Fine Chemicals, Piscataway, NJ) t ...
The 14-3-3 gene par-5 is required for germline development and
... deregulation, the accumulation of endogenous DNA damage and genomic instability. Moreover, par-5 was required for checkpointinduced cell cycle arrest in response to DNA-damaging agents. We propose a model in which PAR-5 regulates CDK-1 phosphorylation to prevent premature mitotic entry. This study o ...
... deregulation, the accumulation of endogenous DNA damage and genomic instability. Moreover, par-5 was required for checkpointinduced cell cycle arrest in response to DNA-damaging agents. We propose a model in which PAR-5 regulates CDK-1 phosphorylation to prevent premature mitotic entry. This study o ...
Inhibition of Target of Rapamycin Signaling and
... vacuole membrane, and the remaining vesicle, known as the autophagic body, is finally released to the vacuole for its degradation (Xie and Klionsky, 2007). The evolutionary conservation of autophagy among eukaryotes indicates that structural and regulatory components of this cellular process must be ...
... vacuole membrane, and the remaining vesicle, known as the autophagic body, is finally released to the vacuole for its degradation (Xie and Klionsky, 2007). The evolutionary conservation of autophagy among eukaryotes indicates that structural and regulatory components of this cellular process must be ...
AMPK regulates ER morphology and function in
... the ER alongside increased expression of UPR markers in -cells have been documented in animal models of diabetes and humans with T2D (4, 5). ER stress is often accompanied by changes in ER morphology; however, the mechanisms involved and the impact of ER morphology on cellular function are poorly u ...
... the ER alongside increased expression of UPR markers in -cells have been documented in animal models of diabetes and humans with T2D (4, 5). ER stress is often accompanied by changes in ER morphology; however, the mechanisms involved and the impact of ER morphology on cellular function are poorly u ...
Microfabrication in Biology and Medicine
... In a microfabrication process, one takes a substrate and builds a device either out of its bulk material or on its surface. The former is referred to as bulk micromachining (74), whereas the latter is known as surface micromachining (29). Figure 3 is a schematic example of each type of process. Ofte ...
... In a microfabrication process, one takes a substrate and builds a device either out of its bulk material or on its surface. The former is referred to as bulk micromachining (74), whereas the latter is known as surface micromachining (29). Figure 3 is a schematic example of each type of process. Ofte ...
Phototropism: Growing towards an Understanding of
... NONPHOTOTROPIC HYPOCOTYL3 (NPH3) was originally identified as a phototropic loss-of-function mutant in Arabidopsis (Liscum and Briggs, 1995). NPH3 encodes a protein containing an N-terminal Broad-complex, Tramtrack, and Bric-á-brac (BTB) domain, a central NPH3 domain (Pfam, PF03000), and a C-terminal ...
... NONPHOTOTROPIC HYPOCOTYL3 (NPH3) was originally identified as a phototropic loss-of-function mutant in Arabidopsis (Liscum and Briggs, 1995). NPH3 encodes a protein containing an N-terminal Broad-complex, Tramtrack, and Bric-á-brac (BTB) domain, a central NPH3 domain (Pfam, PF03000), and a C-terminal ...
Symposium 74_Evolution: The Molecular Landscape
... been considered, e.g., replication on the surface of mineral particles or within porous rocks, but biology makes universal use of bilayer lipid membranes for cellular compartmentalization. Whether there was at some stage a jump to this mode of organization, or whether this form of spatial localizati ...
... been considered, e.g., replication on the surface of mineral particles or within porous rocks, but biology makes universal use of bilayer lipid membranes for cellular compartmentalization. Whether there was at some stage a jump to this mode of organization, or whether this form of spatial localizati ...
Mitochondrial Dynamics
... localizes to the inner surface of the cell membrane at division sites, where it forms a ring structure (Z ring) that enables constriction and scission of the parent into two daughter cells. FtsZ is a GTPase, which can hydrolyze guanosine triphosphate to provide a source of energy. However, it is tho ...
... localizes to the inner surface of the cell membrane at division sites, where it forms a ring structure (Z ring) that enables constriction and scission of the parent into two daughter cells. FtsZ is a GTPase, which can hydrolyze guanosine triphosphate to provide a source of energy. However, it is tho ...
Molecular and Cellular Mechanisms Whereby the Apical Ectodermal
... stylopod and ending with formation of the autopod (Saunders, 1948). As the limb grows outward from the body wall, differences along each axis can be observed which allow for normal function of the vertebrate limb: the proximal bone structure is much different than the distal bone structure, the form ...
... stylopod and ending with formation of the autopod (Saunders, 1948). As the limb grows outward from the body wall, differences along each axis can be observed which allow for normal function of the vertebrate limb: the proximal bone structure is much different than the distal bone structure, the form ...
COMMUNICATION Two categories of mammalian galactose
... and 141) rather than GalNAc (glycans 101 and 161). The highest-affinity ligand on the array for RHL-1 is a complex biantennary glycan, in which both antennae terminate in a GalNAcβ1-4GlcNAc structure. This glycan also contains outer arm α1–2-linked fucose on the subterminal GlcNAc and α1–2-linked fu ...
... and 141) rather than GalNAc (glycans 101 and 161). The highest-affinity ligand on the array for RHL-1 is a complex biantennary glycan, in which both antennae terminate in a GalNAcβ1-4GlcNAc structure. This glycan also contains outer arm α1–2-linked fucose on the subterminal GlcNAc and α1–2-linked fu ...
Homeostasis and the Importance for a Balance
... called mTORC1 and mTORC2 (Fig. 1). The complexes are distinguished through the binding of mTOR to accessory proteins, such as the regulatory associated protein of mTOR (Raptor) found in mTORC1 and rapamycin-insensitive companion of mTOR (Rictor) in mTORC2, as previously reviewed [14]. mTORC1 is regu ...
... called mTORC1 and mTORC2 (Fig. 1). The complexes are distinguished through the binding of mTOR to accessory proteins, such as the regulatory associated protein of mTOR (Raptor) found in mTORC1 and rapamycin-insensitive companion of mTOR (Rictor) in mTORC2, as previously reviewed [14]. mTORC1 is regu ...
PDF - Hormones.gr
... (bacteria, viruses), whole organelles, as well as longlived soluble proteins.12,13 Three forms of autophagic processes are currently known: classic autophagy (also called macroautophagy to distinguish it from other processes), chaperone-mediated autophagy, and microautophagy.14 Classic autophagy is ...
... (bacteria, viruses), whole organelles, as well as longlived soluble proteins.12,13 Three forms of autophagic processes are currently known: classic autophagy (also called macroautophagy to distinguish it from other processes), chaperone-mediated autophagy, and microautophagy.14 Classic autophagy is ...
Mechanisms That Promote Stem Cell Maintenance throughout Life
... Stem Cell Markers Gene-expression markers have long been sought that would distinguish stem cells based on a unique underlying process. Such markers would free researchers from the experimental difficulties of identifying stem cells by lineage and simultaneously provide clues about regulatory mechan ...
... Stem Cell Markers Gene-expression markers have long been sought that would distinguish stem cells based on a unique underlying process. Such markers would free researchers from the experimental difficulties of identifying stem cells by lineage and simultaneously provide clues about regulatory mechan ...
PDF
... results do not rule out possible contributions of MAPK pathways other than p38MAPK in this process. In particular, given the U0126 results, it seemed reasonable to consider that ERK signaling also played a role in activating Hro-notch transcription during late stage 2, as has been shown for Drosoph ...
... results do not rule out possible contributions of MAPK pathways other than p38MAPK in this process. In particular, given the U0126 results, it seemed reasonable to consider that ERK signaling also played a role in activating Hro-notch transcription during late stage 2, as has been shown for Drosoph ...
Protozoa - Dr Magrann
... Many free-living forms – marine. Most microscopic - ~5 – 20 um (but some new spp 0.5 – 2um). Since unicellular, each cell must do all basic functions multi-cellular organisms do. ...
... Many free-living forms – marine. Most microscopic - ~5 – 20 um (but some new spp 0.5 – 2um). Since unicellular, each cell must do all basic functions multi-cellular organisms do. ...
Unleashing the potential of the root hair cell as a
... Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, USA ...
... Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, USA ...
A Review of Centriole Activity, and Wrongful Activity, during Cell
... Following centriole duplication and separation into two pair, the younger pair moves around the nucleus to the opposite side. While this is occurring, the nuclear membrane begins to soften. The centrioles at the opposite sides of the nucleus then begin to pull the nucleus apart. As the nucleus is be ...
... Following centriole duplication and separation into two pair, the younger pair moves around the nucleus to the opposite side. While this is occurring, the nuclear membrane begins to soften. The centrioles at the opposite sides of the nucleus then begin to pull the nucleus apart. As the nucleus is be ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.