File
... c) Water will diffuse down its concentration gradient into the liposome, causing it to burst. d) Water will enter the liposome, diluting the sucrose concentration there down to 0 M. ...
... c) Water will diffuse down its concentration gradient into the liposome, causing it to burst. d) Water will enter the liposome, diluting the sucrose concentration there down to 0 M. ...
The role of Cdc14 phosphatases in the control of cell division
... structures in a cell cycle-dependent manner. During interphase, they concentrate in the nucleolus and/or on the spindle pole bodies of yeast, or centrosomes of higher eukaryotes, where catalytic activity is prevented. Indeed, intracellular sequestration is a major mechanism of Cdc14 phosphatase inhi ...
... structures in a cell cycle-dependent manner. During interphase, they concentrate in the nucleolus and/or on the spindle pole bodies of yeast, or centrosomes of higher eukaryotes, where catalytic activity is prevented. Indeed, intracellular sequestration is a major mechanism of Cdc14 phosphatase inhi ...
Prezentare
... Rosengrave, “Porous silicon – a nanostructured biomaterial”, “Nanoscience and Nanoengineering” Vol., Series in “Micro and Nanoengineering”, Romanian Academy Editure, Bucuresti 2004. A. Angelescu, I. Kleps, M. Miu, S. Petrescu, C. Paduraru, M. Simion, A. Bragaru, A. Raducanu,“Thin carbon layers on na ...
... Rosengrave, “Porous silicon – a nanostructured biomaterial”, “Nanoscience and Nanoengineering” Vol., Series in “Micro and Nanoengineering”, Romanian Academy Editure, Bucuresti 2004. A. Angelescu, I. Kleps, M. Miu, S. Petrescu, C. Paduraru, M. Simion, A. Bragaru, A. Raducanu,“Thin carbon layers on na ...
Sticking the Landing: Probing the Roles of LORELEI
... the synergids in the waiting embryo sac, the pollen tube initiates double fertilization. During this process, the synergids facilitate pollen tube burst (to release the two sperm cells), as well as the fusion of one sperm cell with the egg cell and one with the central cell to form the embryo and en ...
... the synergids in the waiting embryo sac, the pollen tube initiates double fertilization. During this process, the synergids facilitate pollen tube burst (to release the two sperm cells), as well as the fusion of one sperm cell with the egg cell and one with the central cell to form the embryo and en ...
A simple calculus for proteins and cells
... κ-calculus and brane calculi. Such a formalism is the aim of this contribution. The calculus presented in this contribution – the bioκ-calculus – retains denotations for proteins, cells, and solutions. Protein reactions are complexations and decomplexations of two proteins. These reactions follow th ...
... κ-calculus and brane calculi. Such a formalism is the aim of this contribution. The calculus presented in this contribution – the bioκ-calculus – retains denotations for proteins, cells, and solutions. Protein reactions are complexations and decomplexations of two proteins. These reactions follow th ...
ThePhyscomitrella patensunique alpha
... leading to the formation of oxylipins. In flowering plants, two main groups of α-DOXs have been described. While the α-DOX1 isoforms are mainly involved in defense responses against microbial infection and herbivores, the α-DOX2 isoforms are mostly related to development. To gain insight into the ro ...
... leading to the formation of oxylipins. In flowering plants, two main groups of α-DOXs have been described. While the α-DOX1 isoforms are mainly involved in defense responses against microbial infection and herbivores, the α-DOX2 isoforms are mostly related to development. To gain insight into the ro ...
RICKETTSIA, CHLAMYDIA, MYCOPLASMA
... morphological characteristics and cultural properties have been isolated. These are commonly referred to as pleuropneumonia-like organisms or PPLO. A certain group of mycoplasmas produce extremely tiny colonies on agar plates, and are called the Tstrains. Some bacteria readily give rise spontaneousl ...
... morphological characteristics and cultural properties have been isolated. These are commonly referred to as pleuropneumonia-like organisms or PPLO. A certain group of mycoplasmas produce extremely tiny colonies on agar plates, and are called the Tstrains. Some bacteria readily give rise spontaneousl ...
A single cell approach in modeling the dynamics of tumor
... investigate how changes occurring in individual cells can influence behavior of the whole tumor tissue. We have applied this model previously to study formation of tumor clusters with random distribution of proliferating cells, not dependent on any external factors [17]. In this paper we extend our ...
... investigate how changes occurring in individual cells can influence behavior of the whole tumor tissue. We have applied this model previously to study formation of tumor clusters with random distribution of proliferating cells, not dependent on any external factors [17]. In this paper we extend our ...
Assembly and maintenance of the sarcomere night and day
... It was initially proposed that a series of actin stress fibrelike cables served as a template for the elements necessary to form a myofibril. These cables coupled by the focal adhesions to the extracellular environment establish a polygonal morphology with the resulting myofibrils running at oblique an ...
... It was initially proposed that a series of actin stress fibrelike cables served as a template for the elements necessary to form a myofibril. These cables coupled by the focal adhesions to the extracellular environment establish a polygonal morphology with the resulting myofibrils running at oblique an ...
Cell cycle control by ubiquitylation
... promoting the formation of an isopeptide bond between the Ub carboxy-terminus and specific lysine side chains on the substrate. ...
... promoting the formation of an isopeptide bond between the Ub carboxy-terminus and specific lysine side chains on the substrate. ...
PDF
... nuclear envelope defects, we therefore examined ER distribution in mitotic cells by live imaging. The ER was excluded from chromosomes and the central spindle area in control metaphase cells but, strikingly, was closely associated with mitotic chromosomes and the spindle in REEP3/4 knockdown cells ( ...
... nuclear envelope defects, we therefore examined ER distribution in mitotic cells by live imaging. The ER was excluded from chromosomes and the central spindle area in control metaphase cells but, strikingly, was closely associated with mitotic chromosomes and the spindle in REEP3/4 knockdown cells ( ...
Wnt Signaling and a Hox Protein Cooperatively Regulate PSA
... that cooperation between Wnt signaling and a Hox protein functions to determine the specific fate of a daughter cell. Introduction During animal development, a zygote generates diverse cell types that have different temporal and spatial identities; asymmetric cell division is a fundamental mechanism ...
... that cooperation between Wnt signaling and a Hox protein functions to determine the specific fate of a daughter cell. Introduction During animal development, a zygote generates diverse cell types that have different temporal and spatial identities; asymmetric cell division is a fundamental mechanism ...
Recent advances in plant cell wall proteomics
... formed by structural proteins, e.g. extensins, both embedded in a pectin matrix. Plant cell walls are dynamic structures essential not only for cell division, enlargement, and differentiation, but also for response to environmental constraints [4, 5]. Cell wall dynamics is illustrated by immunodetec ...
... formed by structural proteins, e.g. extensins, both embedded in a pectin matrix. Plant cell walls are dynamic structures essential not only for cell division, enlargement, and differentiation, but also for response to environmental constraints [4, 5]. Cell wall dynamics is illustrated by immunodetec ...
7-3 Cell Boundaries
... b. provides rigid support for the surrounding cell. c. allows most small molecules and ions to pass through easily. d. is found only in plants, fungi, algae, and many prokaryotes. Slide 25 of 47 End Show Copyright Pearson Prentice Hall ...
... b. provides rigid support for the surrounding cell. c. allows most small molecules and ions to pass through easily. d. is found only in plants, fungi, algae, and many prokaryotes. Slide 25 of 47 End Show Copyright Pearson Prentice Hall ...
Characterization of Ag+ toxicity on living fibroblast cells by the
... in situ, and SECM images of fibroblast cells were also obtained [37]. Since antibacterial products containing Ag are used to treat wounds and burns, it is essential to investigate their toxicity on mammalian epithelial tissues [38,39]. When human dermal fibroblast cells were exposed to AgNO3 at concen ...
... in situ, and SECM images of fibroblast cells were also obtained [37]. Since antibacterial products containing Ag are used to treat wounds and burns, it is essential to investigate their toxicity on mammalian epithelial tissues [38,39]. When human dermal fibroblast cells were exposed to AgNO3 at concen ...
THE MAMMALIAN TARGET OF RAPAMYCIN (MTOR) AS A
... Rapamycin has been a critical reagent in the elucidation of cell signaling pathways regulated by mTOR. The work of many investigators has established that mTOR regulates cell size and proliferation in part through control of protein synthesis of a subset of cell cycle regulatory proteins3,4. In yeas ...
... Rapamycin has been a critical reagent in the elucidation of cell signaling pathways regulated by mTOR. The work of many investigators has established that mTOR regulates cell size and proliferation in part through control of protein synthesis of a subset of cell cycle regulatory proteins3,4. In yeas ...
Chapter 12
... • Cancer cells may not need growth factors to grow and divide: – They may make their own growth factor – They may convey a growth factor’s signal without the presence of the growth factor – They may have an abnormal cell cycle control system Copyright © 2008 Pearson Education, Inc., publishing as Pe ...
... • Cancer cells may not need growth factors to grow and divide: – They may make their own growth factor – They may convey a growth factor’s signal without the presence of the growth factor – They may have an abnormal cell cycle control system Copyright © 2008 Pearson Education, Inc., publishing as Pe ...
Human B7-H3 binds to Triggering receptor expressed on myeloid
... The B7 family member B7-H3 is broadly expressed in many tissue and tumor types. B7-H3 expression is induced on some immune cells; however, its immunological function remains controversial, because both immunoenhancing and immunoinhibitory effects have been reported in human and mouse systems. We hav ...
... The B7 family member B7-H3 is broadly expressed in many tissue and tumor types. B7-H3 expression is induced on some immune cells; however, its immunological function remains controversial, because both immunoenhancing and immunoinhibitory effects have been reported in human and mouse systems. We hav ...
electron microscope observations on frozen
... thin sectioning and electron microscopy of high resolution. So far, however, the observations have been primarily made on cells fixed by chemical reagents. Osmium tetroxide (OsO4) fixation, for instance, proved to be an excellent method for the ...
... thin sectioning and electron microscopy of high resolution. So far, however, the observations have been primarily made on cells fixed by chemical reagents. Osmium tetroxide (OsO4) fixation, for instance, proved to be an excellent method for the ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).