• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Two Separate Functions Are Encoded by the Carboxyl
Two Separate Functions Are Encoded by the Carboxyl

... sole function of this domain, is unclear. Here, we demonstrate that the carboxyl-terminal domains of CAP and CAP homologs have two separate functions. We show that carboxyl-terminals of both yeast CAP and a mammalian CAP homolog, MCH1, bind to actin. We also show that this domain contains a signal f ...
Autophagy at the crossroads of catabolism and anabolism
Autophagy at the crossroads of catabolism and anabolism

... specific cargoes such as mitochondria, peroxisomes and ribosomes, and protein aggregates. Selective autophagy is mediated by autophagy cargo receptors that bind cargo earmarked with degradation signals, most commonly ubiquitin in mammals, through their ubiquitin-binding domain (UBD). These receptors ...
aureus and Enterococcus faecalis exposed to
aureus and Enterococcus faecalis exposed to

... methicillin-resistant strain of Staphylococcus aureus and in a strain of Enterococcus faecalis. The earliest (after 1 h) surface lesion observed was the appearance of bosslike processes randomly distributed on the cell surface. Later, grossly deformed bacteria were seen and in two of the three bacte ...
Cytokinin–auxin crosstalk
Cytokinin–auxin crosstalk

... most-studied auxin transporters are the PIN genes, which form a small family of eight members, most of which appear to facilitate cellular auxin efflux [28] (Figure 1). Members of the PIN protein family are homologous and functionally redundant, as indicated by the increasingly severe phenotypes of ...
Conditional expression of Mycobacterium smegmatis
Conditional expression of Mycobacterium smegmatis

... M. tuberculosis, are believed to maintain two physiologically distinct growth states – an active, multiplicative state and a dormant, non-replicative state (Manabe & Bishai, 2000). In the latter state, the bacterium remains metabolically active but is in a state of non-growth for extended periods, o ...
Phloem loading and unloading of sugars and amino acids
Phloem loading and unloading of sugars and amino acids

... paths. Source loading and sink unloading of sugars, amino N compounds and potassium largely account for phloem sap osmotic concentrations and hence pressure differences. A symplasmic component is characteristic of most loading and unloading pathways which, in some circumstances, may be interrupted b ...
Effects of Sulphur Dioxide on Biochemical Activity and
Effects of Sulphur Dioxide on Biochemical Activity and

... appeared intact, which accounts for the relatively high Hill reaction activity (3.IO pmoles 02/min/mg chlorophyll). The basal Hill reaction activity from the young or basal tissue was much higher than that from the mid-tissue or distal tissue (Fig. I), showing that younger tissue with a high rate of ...
Modeling leaf venation patterns Anne-Gaelle Rolland
Modeling leaf venation patterns Anne-Gaelle Rolland

... Models of venation formation in response to auxin Two biologically plausible hypotheses have been proposed to explain how veins are formed. The first one, named the canalization hypothesis (Sachs, 1981), was based on a series of careful experiments (Sachs, 1981). It predicts that as auxin flows thro ...
Survival in Animal Cells Requires ppGpp for Internalization and
Survival in Animal Cells Requires ppGpp for Internalization and

... Gallinarum, we carried out comparative studies between serovar Gallinarum and a better-characterized serovar, serovar Typhimurium. The representative serovar Gallinarum used in this study was isolated from the chicken liver with fowl typhoid in a South Korean broiler farm and identified by the modif ...
Thesis - KI Open Archive
Thesis - KI Open Archive

... execute these fundamental processes often leads to cell death. However, it can also lead to cells acquiring the wrong number of chromosomes, i.e. aneuploidy, which is a hallmark of cancer cells. Knowledge of how chromosomes are organized and maintained is therefore important not only to understand t ...
Document
Document

... cell ultimately leads to membrane depolarization and an influx of extracellular calcium. The resulting increase in intracellular calcium is thought to be one of the primary triggers for exocytosis of insulin-containing secretory granules. ...
Vesicle trafficking dynamics and visualization of zones of exocytosis
Vesicle trafficking dynamics and visualization of zones of exocytosis

... occur in tip-growing cells, as the amount of membrane inserted during exocytosis would exceed the quantity required to support new growth (Picton and Steer, 1983). These internalized vesicles could also contain membrane proteins that are recycled by trafficking to the enodosomal compartment, as well ...
Cytoskeleton: What Does GTP Do for Septins? Dispatch
Cytoskeleton: What Does GTP Do for Septins? Dispatch

... proteins. They were discovered in the budding yeast Saccharomyces cerevisiae as a set of genes — CDC3, CDC10, CDC11 and CDC12 — required for normal bud morphology. Subsequent work suggested that septins are the building blocks of the neck filaments which organize the thin neck of cytoplasm separatin ...
Cloning and developmental expression of Sna, a murine homologue
Cloning and developmental expression of Sna, a murine homologue

... an 8.5-day mouse embryo cDNA library was screened at moderate stringency with a probe containing most of the coding region of the Xsna gene. A single 1.4 kb clone was identified in this initial screen that cross-hybridised at high stringency with the Xsna probe. Sequence analysis indicated that this ...
PDF
PDF

... of these modifications remains unknown. In this study, a tissue-specific function of arginine methylation of the SmB protein was identified in Drosophila. Analysis of the distribution of SmB during oogenesis revealed that this protein accumulates at the posterior pole of the oocyte, a cytoplasmic re ...
The Cleavage and Polyadenylation Specificity Factor in Xenopus
The Cleavage and Polyadenylation Specificity Factor in Xenopus

... In this report we focus on the involvement of a third component, cleavage and polyadenylation specificity factor (CPSF), in cytoplasmic polyadenylation. CPSF was first characterized based on its role in nuclear cleavage and polyadenylation (21, 27, 49). In the nucleus, both the cleavage and subseque ...
Adhesion and Adhesives of Fungi and Oomycetes
Adhesion and Adhesives of Fungi and Oomycetes

... Department of Plant Pathology, University of California, Davis, CA 95616-8680, USA e-mail: [email protected] © Springer International Publishing Switzerland 2016 A.M. Smith (ed.), Biological Adhesives, DOI 10.1007/978-3-319-46082-6_2 ...
2 common staining technique
2 common staining technique

... image. Stains and dyes are frequently used in biological tissues for viewing, often with the aid of different microscopes. Stains may be used to define and examine bulk tissues (highlighting, for example, muscle fibers or connective tissue), cell populations (classifying different blood cells, for i ...
Role of Smad4 (DPC4) inactivation in human cancer.
Role of Smad4 (DPC4) inactivation in human cancer.

... A 552 amino acid protein found in the cytoplasm ...
science - Christian Schools International
science - Christian Schools International

... behalf of his people; it contains all that is necessary for bringing us to salvation and instructing us about how to live. As the infallible Word of God, it is the only book that has the status of divine authority. We learn about God through the direct revelation of his Word. We can also learn about ...
Localization of Ptr ToxA Produced by Pyrenophora tritici
Localization of Ptr ToxA Produced by Pyrenophora tritici

Up-regulation of junctophilin-2 prevents ER stress and apoptosis in
Up-regulation of junctophilin-2 prevents ER stress and apoptosis in

... has been proven that therapies to restore blood flow in ischemic myocardium salvage reversibly injured cardiomyocytes from necrosis. Since then, reperfusion strategies like thrombolysis, intervention, and bypass surgery have been widely incorporated into clinical practice during the last three decad ...
Lipid rafts
Lipid rafts

... It is important to note, cholesterol may regulate protein function not only through altering lipid rafts but also by direct interactions with the proteins. However, it is very challenging to discriminate between these possibilities for any specific type of protein because it is unreasonable to test ...
Deciphering the molecular functions of sterols in cellulose
Deciphering the molecular functions of sterols in cellulose

... accumulation. It is striking that sterol composition differs considerably between the fk, cph/smt1, and hyd1 mutants despite their similar cellulose deficiencies. In particular, fk mutants accumulate Δ8,14 sterols and exhibit a reduction in both sitosterol and campesterol (Schrick et al., 2000), whil ...
Antisense Oligonucleotides: problems with use and solutions
Antisense Oligonucleotides: problems with use and solutions

... be of small size to allow intercalation between tissues and to allow intracellular transport, they must be nontoxic and stable in the blood stream, they must retain the drug when in the circulation and must release it at its target before elimination. If the delivery vector is too large, this potent ...
< 1 ... 29 30 31 32 33 34 35 36 37 ... 1231 >

Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report