Abstract:
:The cell walls of selected bacteria were studied by X-ray diffraction analysis to determine and characterize crystalline components. The walls were isolated by mechanical disruption and purified by enzymatic and washing procedures. The X-ray diffraction lines which appeared from the gram-positive cell walls were shown to be due to the constituent "mucopeptide" fraction. No diffraction lines could be obtained from the gram-negative bacterium studied. The results show that crystallinity is associated with mucopeptide.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Carito SL,Bazil SL,DiGiacomo Gdoi
10.1128/JB.93.1.122-124.1967subject
Has Abstractpub_date
1967-01-01 00:00:00pages
122-4issue
1eissn
0021-9193issn
1098-5530journal_volume
93pub_type
杂志文章abstract::The effects of temperature and attractants on chemotaxis in psychrotrophic Pseudomonas fluorescens were examined using the Adler capillary assay technique. Several organic acids, amino acids, and uronic acids were shown to be attractants, whereas glucose and its oxidation products, gluconate and 2-ketogluconate, elici...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.143.1.338-342.1980
更新日期:1980-07-01 00:00:00
abstract::Integration host factor (IHF) is a small, basic protein that is needed for efficient recombination of bacteriophage lambda, as well as for other host and viral functions. We have constructed strains in which the two subunits of IHF, encoded by the himA and hip genes of Escherichia coli, are expressed under the control...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.9.4124-4127.1987
更新日期:1987-09-01 00:00:00
abstract::Growth rate control of adherent, sessile populations was achieved by the controlled perfusion of membrane-associated bacterial biofilms by the method of Gilbert et al. (P. Gilbert, D. G. Allison, D. J. Evans, P. S. Handley, and M. R. W. Brown, Appl. Environ. Microbiol. 55:1308-1311, 1989). Changes in cell surface hydr...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.172.3.1667-1669.1990
更新日期:1990-03-01 00:00:00
abstract::Motility in mycobacteria was described for the first time in 1999. It was reported that Mycobacterium smegmatis and Mycobacterium avium could spread on the surface of solid growth medium by a sliding mechanism and that the presence of cell wall glycopeptidolipids was essential for motility. We recently reported that M...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00572-08
更新日期:2008-10-01 00:00:00
abstract::The mechanisms involved in the virulence of Yersinia pestis, the plague pathogen, are not fully understood. In previous research, we found that a Y. pestis mutant lacking the HicB3 (YPO3369) putative orphan antitoxin was attenuated for virulence in a murine model of bubonic plague. Toxin-antitoxin systems (TASs) are w...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01932-14
更新日期:2014-11-01 00:00:00
abstract::Exogenous proline specifically stimulates the growth rate of enteric bacteria in media of inhibitory osmotic strength (J. H. B. Christian, Aust. J. Biol. Sci. 8:490-497, 1955). I observed that Salmonella typhimurium mutants which lack both of the previously known proline permeases (putP proP) are stimulated by proline...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.151.3.1433-1443.1982
更新日期:1982-09-01 00:00:00
abstract::Natural and immune human antibodies reactive with heat-labile and heat-stable antigens of virulent Neisseria gonorrhoeae were studied by use of an indirect fluorescent-antibody (IFA) procedure. The immunoglobulin class of the reactive antibodies was identified by using fluorescein-conjugated antisera specific for huma...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.94.1.141-148.1967
更新日期:1967-07-01 00:00:00
abstract::Accumulation of abnormal proteins in cells of bacteria or eukaryotes can induce synthesis of a set of heat shock proteins. We examined such induction following addition of azetidine (a proline analog) or synthesis of a heterologous protein (human prourokinase) in Escherichia coli. Synthesis of heat shock proteins unde...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.18.5648-5653.1994
更新日期:1994-09-01 00:00:00
abstract::A simple three-step procedure is described which yields electrophoretically homogeneous preparations of ribitol-5-phosphate dehydrogenase and xylitol-5-phosphate dehydrogenase. The former enzyme is a 115,000-molecular-weight protein composed of two subunits of identical size and is specific for its substrate, ribitol....
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.4.1651-1655.1987
更新日期:1987-04-01 00:00:00
abstract::Cysteine and methionine availability influences many processes in the cell. In bacteria, transcription of the specific genes involved in the synthesis of these two amino acids is usually regulated by different mechanisms or regulators. Pathways for the synthesis of cysteine and methionine and their interconversion wer...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.11.3762-3778.2005
更新日期:2005-06-01 00:00:00
abstract::We previously described a bacteriophage of the Lyme disease agent Borrelia burgdorferi designated phiBB-1. This phage packages the host complement of the 32-kb circular plasmids (cp32s), a group of homologous molecules found throughout the genus Borrelia. To demonstrate the ability of phiBB-1 to package and transduce ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.183.16.4771-4778.2001
更新日期:2001-08-01 00:00:00
abstract::Hydroxylamine mutagenesis was used to alter the tar gene that encodes the transmembrane Tar protein required for chemotaxis. Mutants defective in chemotaxis were selected, and the mutation was characterized by DNA sequencing. Two classes of mutations were found: nonsense and missense. The nonsense mutations were distr...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.167.3.992-998.1986
更新日期:1986-09-01 00:00:00
abstract::Production of Bacillus subtilis exoproteases is positively regulated by the DegS-DegU two-component regulatory system and other regulatory factors including DegR and ProB. It was shown that the expression of degR was virtually abolished in a sigD mutant and that the transcriptional initiation site in vivo is preceded ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.1.216-222.1996
更新日期:1996-01-01 00:00:00
abstract::The 3.1-Mb genome of an outbreak methicillin-resistant Staphylococcus aureus (MRSA) strain (TW20) contains evidence of recently acquired DNA, including two large regions (635 kb and 127 kb). The strain is resistant to a wide range of antibiotics, antiseptics, and heavy metals due to resistance genes encoded on mobile ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01255-09
更新日期:2010-02-01 00:00:00
abstract::Sinorhizobium meliloti is a soil-dwelling alphaproteobacterium that engages in a nitrogen-fixing root nodule symbiosis with leguminous plants. Cell surface polysaccharides are important both for adapting to stresses in the soil and for the development of an effective symbiotic interaction. Among the polysaccharides ch...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00501-17
更新日期:2018-01-10 00:00:00
abstract::On the basis of the constitutive phenotypes of two catM mutants of Acinetobacter calcoaceticus, the CatM protein was proposed to repress expression of two different loci involved in catechol degradation, catA and catBCIJFD (E. Neidle, C. Hartnett, and L. N. Ornston, J. Bacteriol. 171:5410-5421, 1989). In spite of its ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.177.20.5891-5898.1995
更新日期:1995-10-01 00:00:00
abstract::ruvC mutants of Escherichia coli appear to lack an activity that resolves Holliday intermediates into recombinant products. Yet, these strains produce close to normal numbers of recombinants in genetic crosses. This recombination proficiency was found to be a function of recG. A "mini-kan" insertion in recG was introd...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.173.17.5414-5418.1991
更新日期:1991-09-01 00:00:00
abstract::We describe the identification and characterization of two genes and their gene products responsible for determining receptor binding and pilus length in type 1-piliated Escherichia coli. One gene, pilE, conferred the ability of piliated cells to agglutinate guinea pig erythrocytes. The other gene, pilF, determined pi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.2.640-645.1987
更新日期:1987-02-01 00:00:00
abstract::Nitrate reductase extracted from the membrane of Escherichia coli by alkaline heat treatment was purified to homogeneity and used to prepare specific antibody. Nitrate reductase, precipitated by this antibody from Triton extracts of the membrane, contained a third subunit not present in the purified enzyme used to pre...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.121.3.1102-1110.1975
更新日期:1975-03-01 00:00:00
abstract::Lysogenization of Salmonella typhimurium with either of the bacteriophages A3 and A4 results in O-acetylation of the L-rhamnose residues of the O-polysaccharide chain of the lipopolysaccharide of the bacterial cell envelope. The O-acetyl group is found on both O-2 and O-3 of the L-rhamnosyl residues. This lysogenic co...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.169.3.1003-1009.1987
更新日期:1987-03-01 00:00:00
abstract::Goldberg, Herbert S. (University of Missouri, Columbia), Ella M. Barnes, and Anthony B. Charles. Unusual Bacteroides-like organism. J. Bacteriol. 87:737-742. 1964.-An organism is described which appears to be a new species of gram-negative, anaerobic, nonsporulating rod. It was isolated from poultry caeca at levels of...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.87.3.737-742.1964
更新日期:1964-03-01 00:00:00
abstract::A 10-kb region of the Bacillus subtilis genome that contains genes involved in biotin-biosynthesis was cloned and sequenced. DNA sequence analysis indicated that B. subtilis contains homologs of the Escherichia coli and Bacillus sphaericus bioA, bioB, bioD, and bioF genes. These four genes and a homolog of the B. spha...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.14.4122-4130.1996
更新日期:1996-07-01 00:00:00
abstract::The Bacillus subtilis ferric uptake regulator (Fur) protein mediates the iron-dependent repression of at least 20 operons encoding approximately 40 genes. We investigated the physiological roles of Fur-regulated genes by the construction of null mutations in 14 transcription units known or predicted to function in sid...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.188.10.3664-3673.2006
更新日期:2006-05-01 00:00:00
abstract::Spontaneous mutants of Staphylococcus aureus resistant to rifampin, rifamycin SV, streptovaricin, or streptolydigin were isolated and shown to be resistant due to chromosomal rather than plasmid mutations. Based on data concerning spontaneous mutation rates, genetic cotransduction rates, and in vitro sensitivity studi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.137.1.374-383.1979
更新日期:1979-01-01 00:00:00
abstract::A large number of carbon source utilization pathways are repressed in Bacillus subtilis by the global regulator CcpA, which also acts as an activator of carbon excretion pathways during growth in media containing glucose. In this study, CcpA mutants defective in transcriptional activation of the alsSD operon, which is...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.182.19.5611-5614.2000
更新日期:2000-10-01 00:00:00
abstract::A new Salmonella enterica serovar Typhimurium strain has been constructed to facilitate tightly regulated gene expression. Arabinose-inducible and glucose-repressible expression of a T7 RNA polymerase gene that has been integrated with an adjacent araC-P(BAD) control element into the bacterial chromosome allows dynami...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.21.6056-6059.2002
更新日期:2002-11-01 00:00:00
abstract::The highly purified lipoprotein of the outer membrane of Escherichia coli forms paracrystals. The ultrastructures of these paracrystals were examined by electron microscopy. The needle-shaped paracrystals show several different band patterns, depending on conditions of paracrystallization. Models are presented to expl...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.127.1.564-571.1976
更新日期:1976-07-01 00:00:00
abstract::Marchette, Nyven J. (University of Utah, Salt Lake City), and Paul S. Nicholes. Virulence and citrulline ureidase activity of Pasteurella tularensis. J. Bacteriol. 82:26-32. 1961.-The presence of a citrulline ureidase system in Pasteurella tularensis strains of high virulence, and its absence in avirulent strains and ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.82.1.26-32.1961
更新日期:1961-07-01 00:00:00
abstract::Although arsenic is highly toxic to most organisms, certain prokaryotes are known to grow on and respire toxic metalloids of arsenic (i.e., arsenate and arsenite). Two enzymes are known to be required for this arsenic-based metabolism: (i) the arsenate respiratory reductase (ArrA) and (ii) arsenite oxidase (AoxB). Bot...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00244-10
更新日期:2010-07-01 00:00:00
abstract::The number and disposition of flagella harbored by eubacteria are regulated by a specific trait successfully maintained over generations. The genes governing the number of flagella in Bacillus subtilis have never been identified, although the ifm locus has long been recognized to influence the motility phenotype of th...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.15.5356-5366.2005
更新日期:2005-08-01 00:00:00