• 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
Open Questions on the Origin of Eukaryotes
Open Questions on the Origin of Eukaryotes

... making necessary a splicing system, likely integrated in a sophisticated gene regulation machinery that also included the activity of small non-coding RNAs and RNA interference. This list is not exhaustive because many other processes, such as ubiquitination and proteasome-mediated degradation, were ...
The Title of Presentation
The Title of Presentation

... Relationship between feasibility of proteomic studies and sample complexity. Different complexity levels can be used to accomplish certain study goals. Carla M. R. Lacerda, and Kenneth F. Reardon Briefings in Functional Genomics and Proteomics 2009;8:75-87 ...
Effect of energy metabolism and membrane structure on single l
Effect of energy metabolism and membrane structure on single l

... the outer membrane is a rigid structure composed of glycan strands crosslinked by peptide bonds. The λ-receptor is an integral outer membrane protein responsible for transport of maltodextrins across the membrane and used by the bacteriophage lambda as receptor. In the presence of maltose thousands ...
Bacteria, Viruses, Protists, and Fungi
Bacteria, Viruses, Protists, and Fungi

... (singular, bacterium) they think of eubacteria. The eubacteria are the most-studied organisms and are found almost everywhere except in the extreme environments where mostly archaebacteria are found. Eubacteria have very strong cell walls that contain peptidogylcan. Some eubacteria have a second cel ...
Bacterial biofilms: Importance in animal diseases
Bacterial biofilms: Importance in animal diseases

... adhered to inert material or live tissue. These communities can be conformed by a single species or by different bacterial species and even different genera. The composition of the biofilm varies depending on the system under study. In general, the main component is water, and can represent up to 97 ...
Chapter 18: Bacteria and Viruses
Chapter 18: Bacteria and Viruses

... (singular, bacterium) they think of eubacteria. The eubacteria are the most-studied organisms and are found almost everywhere except in the extreme environments where mostly archaebacteria are found. Eubacteria have very strong cell walls that contain peptidogylcan. Some eubacteria have a second cel ...
PDF sample
PDF sample

... times. Other than these scarce remains, we have little information about early life on earth. The marine sediments and continental rocks where bacteria may have been deposited have been flattened and heated over time, or recrystalize completely, so that few rocks (and fossils) of this age have rema ...
here
here

... [The reader wishing to gain a broader and more detailed appreciation for the molecular definition of the three groups can consult refs. 2, 20, and 21 and the proceedings of the most recent conference on archaebacteria (22).] Molecular characterizations also reveal that the evolutionary differences a ...
bacteria: the good, the bad and the ugly
bacteria: the good, the bad and the ugly

... Gram negative bacteria have their peptidoglycan layer sandwiched between two membranes. For Gram negative bacteria other classes of antibiotics are more effective. The other classes of antibiotics work against bacteria in a variety of ways. Some reduce the bacteria’s ability to properly make protein ...
Glencoe Biology - Mr. Jones Jaguars
Glencoe Biology - Mr. Jones Jaguars

...  A nonliving strand of genetic material within a protein coat  No organelles to take in nutrients or use energy  Cannot make proteins  Cannot move  Cannot replicate on their own  Most viruses range in size from 5 to 300 nanometers. ...
Identifying Uropathogens
Identifying Uropathogens

... its shape. I.e. Cocci (spherical in shape), Bacilli (rod-shaped) or coccobacilli. Gram – ve cocci and coccobacilli don't usually cause UTI. However, it could cause urethritis associated with sexual transmitted diseases. One example is Neisseria gonorrhoeae. For now, we will focus on gram –ve bacilli ...
Functional and structural studies of a C
Functional and structural studies of a C

... peptidyl tRNA in the A site now move to the empty P site. Thus, the ribosome moves along its mRNA in the 3´direction by one codon so that the next aminoacyl tRNA can be delivered to the empty A site. ...
Bacteria
Bacteria

... connected by polypeptide cross-links. In some bacteria, the peptidoglycan forms a thick, complex network around the outer surface of the cell. This network is interlaced with peptide chains. In other bacteria a thin layer of peptidoglycan is found sandwiched between two plasma membranes. The outer m ...
Promiscuity of the Euonymus Carbohydrate-Binding Domain
Promiscuity of the Euonymus Carbohydrate-Binding Domain

... more complex carbohydrates in a reversible way. These carbohydrate-binding domains are widespread but have been studied most intensively within the plant kingdom. Plant lectins are a very diverse group of proteins with obvious differences in their biochemical/physicochemical properties, molecular st ...
Imposex Study on Thais tuberosa from Port and Non
Imposex Study on Thais tuberosa from Port and Non

... 2008). They are typically of 30 to 40 mm in thickness and have channels for transport of water, nutrients and waste by molecular diffusion. Bacteria in biofilms use some combination of pili, fimbriae, and secreted exopolymeric substances (EPS) to adhere to an interface (Pradhan et al 2008). Biofilms ar ...
Complement
Complement

... Complement functions • Host benefit: ...
DENS 521 3rd S
DENS 521 3rd S

...  Penicillin G is the dug of choice for infections due to Neisseria meningitidis, Bacillus anthracis, Clostridium perfringens and tetani, Corynebacterium diphtheriae and Treponema pallidum…..  Penicillin V is less active than penicillin G against Neisseria species. It is satisfactory substitute for ...
The use of signature sequences in different proteins
The use of signature sequences in different proteins

... assumptions (e.g. reliability of the sequence alignment, regions of sequences that are retained or excluded in phylogenetic analysis, number and range of species included, differences in the evolutionary rates, base compositional differences, phylogenetic methods employed, etc.) (Gupta, 1998b). Henc ...
Determinants of pathogenicity and avirulence in plant pathogenic
Determinants of pathogenicity and avirulence in plant pathogenic

... the cytoplasm of living P. syringae and Xanthomonas spp. cells [8,23], but it now appears that the Hrp systems of Erwinia spp. can secrete Avr proteins in culture. A homolog of the P. syringae pv. tomato avrE gene has been found in E. amylovora and designated dspA in strain CFBP1430 and dspE in stra ...
Rooting the Universal Tree of Life Using Genomic Fusion
Rooting the Universal Tree of Life Using Genomic Fusion

... synthase has been proposed to root the eukaryote tree and put the eukaryotic root between bikonts and opisthokonts. However, the approach has the similar shortcoming and requires that the genes fused just once and will never secondarily split or laterally transferred within eukaryotes, which may not ...
microorganisms
microorganisms

... metals from ground water. Geobacter has the added advantage of potentially converting these wastes to biofuels. Scientists are hopeful about future environmental applications of this exciting microorganism. Harmful Microorganisms Some microorganisms feed themselves in a way that causes harm to other ...
sylabus - Medical University of Lodz
sylabus - Medical University of Lodz

... bacteria, preparation of pure cultures. Sterilization and disinfection techniques. The indigenous human bacterial flora, bacteria in environment. General microbiology – Morphology of bacterial cell, staining procedures for bacteria. General microbiology – Identification and classification of bacteri ...
Resources: - Real Science
Resources: - Real Science

... means “something that eats bacteria”. Phages, as they are often called, don't actually eat whole bacteria. But they do attack and kill them. So researchers have been testing phages. They have found that antibiotics can be 50 times as effective in killing bacteria if phages are used along with them. ...
Holding it all together? Candidate proteins for the plant Golgi matrix
Holding it all together? Candidate proteins for the plant Golgi matrix

... (Figure 2). Golgins are large proteins with extensive coiled-coil domains [20–22]. The coiled-coil is a very common protein motif that consists of heptad repeats, which form amphipatic a-helices that twist into a supercoil and form a long rod-like structure [23]. Long coiledcoil proteins often have ...
gram negative bacteria will be red.
gram negative bacteria will be red.

... The most used stain in bacteriology ...
< 1 ... 10 11 12 13 14 15 16 17 18 ... 91 >

Trimeric autotransporter adhesin



In molecular biology, trimeric autotransporter adhesins (TAAs), are proteins found on the outer membrane of Gram-negative bacteria. Bacteria use TAAs in order to infect their host cells via a process called cell adhesion. TAAs also go by another name, oligomeric coiled-coil adhesins, which is shortened to OCAs. In essence, they are virulence factors, factors that make the bacteria harmful and infective to the host organism.TAAs are just one of many methods bacteria use to infect their hosts, infection resulting in diseases such as pneumonia, sepsis, and meningitis. Most bacteria infect their host through a method named the secretion pathway. TAAs are part of the secretion pathway, to be more specific the type Vc secretion system.Trimeric autotransporter adhesins have a unique structure. The structure they hold is crucial to their function. They all appear to have a head-stalk-anchor structure. Each TAA is made up of three identical proteins, hence the name trimeric. Once the membrane anchor has been inserted into the outer membrane, the passenger domain passes through it into the host extracellular environment autonomously, hence the description of autotransporter. The head domain, once assembled, then adheres to an element of the host extracellular matrix, for example, collagen, fibronectin, etc.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report