Protein bacteria

Erythromycin Streptomyces erythreus Gram-positive bacteria Protein synthesis... 

Wang, Z. Russon, L. Li, L. Roser, D. C. Long, S. R. Investigation of spectral reproducibility in direct analysis of bacteria proteins by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Rapid Comm. Mass Spectrom. 1998,12,456-464. 

Immunoassays are based on the ability of the immune system to produce a virtually unlimited variety of antibodies each with a high affinity for foreign compounds (immunogens like viruses, bacteria, proteins, and haptens). Analytically, this phenomenon can be exploited by detection of this immunoreaction using labeled antibodies or antigens (i.e., compounds that can be bound by antibodies). The equilibrium between antibody (Ab), antigen (Ag), and immune complex (Ab-Ag) may be expressed as ... 

Nakai, K., and Kanehisa, M. (1991). PROTEINS Structure, function, and genetics expert system for predicting protein localization sites in gram-negative bacteria. Proteins Struct. Fund. Genet. 11, 95-110. 

Bacteria Proteins, peptides, propionic acid, indole, PAFA Antimicrobial Boobathy et al. (2009) Taylor et al. (2007) Devi et al. (2010) Patnayak and Sree (2005)... 

Gas chromatographic methods for the qualitative analysis of complex systems such as biological materials and bacteria, proteins, steroids and prostaglandins, and triglycerides have been developed. 

Phenolic substances are often thought of when referring to preformed rsistance compounds. The following classes of metabolites, however, should also be included alkaloids, carbohydrates that can bind bacteria, proteins that act as lectins, amino acids, terpenoids, and polyacetylenes. Some of these compounds will be included in the discussion below. 

A. Hollaender2-3 (president) 72 ORNL, Biology Div. Sr. Research Adviser Biophysics Effects of ultraviolet on bacteria proteins nucleic acids... 

The drug binds to the bacterial 50S ribosomal subunit and inhibits protein synthesis at the peptidyl transferase reaction. Because of the similarity of mammalian mitochondrial ribosomes to those of bacteria, protein synthesis in these organelles may be inhibited at high circulating chloramphenicol levels, producing bone marrow toxicity. 

The utilization of biomolecules and bio-organisms, such as bacteria, proteins, and polysaccharide, for the synthesis of Ag and gold nanoparticles (Chandran et al., 2006). 

Diuretic drug preparations have promoted urine formation. They are derivatives of mercury propanol RCH2CH(OH)CH2HgX, where R is a polar hydrophilic group. The mercury diuretic preparations act as ferment inhibitors (latter containing-. They also inhibit adenosine triphosphate (ATP). These properties led to the use of mercury drug compounds in the treatment of bacterial infections. In these cases, they interacted with -SH groups of the bacteria proteins. 

Figure 15.15. Comparasion of MALDI spectra of E. coli (strain ATCC 11775) grown in different laboratories, under the same experimental conditions. The asterisks on the bottom trace indicate common peaks in the two spectra.31,32 [Top trace reprinted, with permission, from Z. Wang, L. Russon, L. Li, D. C. Roser, and S. R. Long, Rapid Communications in Mass Spectrometry 12, 1998, 456 -64. Investigations of Spectral Reproducibility in Direct Analysis of Bacteria Proteins by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry . 1998 John Wiley Sons, Ltd. Bottom trace reprinted, with permission, from Catherine Fenselau and Plamen A. Demirev, Mass Spectrometry Reviews 20, 2001, 157-171. Characterization of Intact Microorganisms by Maldi Mass Spectrometry. Copyright 2002 by John Wiley Sons, Inc.]...

Laser-induced native fluorescence is measured on a set of bio-molecules from different classes (bacteria, proteins, fungi) for excitation at 266nm and 355nm. A method of preprocessing the spectra to obtain an inherently normalized set of data is described. Class identification on the normalized data set is demonstrated. 

Demethylation of Free and Ester-linked Ferulic Acid by Sonicated Cellular Extracts of SR3. The O-demethylase activity of the SR3 strain was not excreted in the culture medium. To demethylate ferulic acid esterified to WEAX, which cannot penetrate the cells, a cell extract of SR3 strain was prepared by anaerobic sonication (MSON 05 Bio block, 20 Hz, 3 cycles of sonication of 2 min 2 s pulses separated by 2 s lag phase). The sonicated cellular extract of SR3 was tested in anaerobiose on free ferulic acid and esterified ferulic acid at 37 °C with a bacteria protein/ferulic acid ratio of 100 mg/ mol. Composition of reaction medium has been chosen in agreement with previous works on the demethylation of methoxylated phenolic compounds by other strains.15 20-22 In order to limit the viscosity of the medium, a 0.5% arabinoxylan concentration was used, corresponding to a 50 / M ferulic acid concentration. 

Bacteria Protein acceptor Location of glycosylation glycosylation sites Reference(s)... 

Guo, J., Lin, Y, Liu, X. GNBSL A new integrative system to predict the subceUular location for gram-negative bacteria proteins. Proteomics 2006, 6,5099-105. 

Toxins can be divided into groups based upon the mechanism by which they function. Protein toxins are created by bacteria. Protein toxins include botulinum (seven related toxins), diphtheria, tetanus, and staphylococcal enerotoxins (seven different toxins). They function by paralyzing the respiratory muscles. Staphylcx (x cal entero-toxins can incapacitate at levels at least 100 times lower than the lethal level. 

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