Abstract:
:Thin pili of the closely related IncI1 plasmids ColIb-P9 and R64 are required only for liquid mating and belong to the type IV family of pili. They were sedimented by ultracentrifugation from culture medium in which Escherichia coli cells harboring ColIb-P9- or R64-derived plasmids had been grown, and then the pili were purified by CsCl density gradient centrifugation. In negatively stained thin pilus samples, long rods with a diameter of 6 nm, characteristic of type IV pili, were observed under an electron microscope. Gel electrophoretic analysis of purified ColIb-P9 thin pili indicated that thin pili consist of two kinds of proteins, pilin and the PilV protein. Pilin was demonstrated to be the product of the pilS gene. Pilin was first synthesized as a 22-kDa prepilin from the pilS gene and subsequently processed to a 19-kDa protein by the function of the pilU product. The N-terminal amino group of the processed protein was shown to be modified. The C-terminal segments of the pilV products vary among six or seven different types, as a result of shufflon DNA rearrangements of the pilV gene. These PilV proteins were revealed to comprise a minor component of thin pili. Formation of PilV-specific cell aggregates by ColIb-P9 and R64 thin pili was demonstrated and may play an important role in liquid mating.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Yoshida T,Furuya N,Ishikura M,Isobe T,Haino-Fukushima K,Ogawa T,Komano Tdoi
10.1128/JB.180.11.2842-2848.1998subject
Has Abstractpub_date
1998-06-01 00:00:00pages
2842-8issue
11eissn
0021-9193issn
1098-5530journal_volume
180pub_type
杂志文章abstract::The mecA-27r gene, which encodes PBP2a-27r, was modified by site-specific mutagenesis, resulting in replacement of the N-terminal membrane anchor with a short chelating peptide (CP-PBP2a-27r). CP-PBP2a-27r retained the same binding affinity for beta-lactam antibiotics as the wild-type enzyme. Approximately 95% pure CP...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.5.1539-1541.1994
更新日期:1994-03-01 00:00:00
abstract::The composition of the molecular species of acidic phospholipids in Escherichia coli B during the late exponential growth phase at 37 degrees C was determined. Two phosphatidyl groups of cardiolipin, the 3-(3-sn-phosphatidyl) and 1-(3-sn-phosphatidyl) moieties of cardiolipin, were isolated by limited hydrolysis with p...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.141.3.1047-1051.1980
更新日期:1980-03-01 00:00:00
abstract::Bergdoll, Merlin S. (University of Chicago, Chicago, Ill.), Concordia R. Borja, and Remedios M. Avena. Identification of a new enterotoxin as enterotoxin C. J. Bacteriol. 90:1481-1485. 1965.-Identification of a new enterotoxin was accomplished by purification of the enterotoxins produced by staphylococcal strains 137 ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.90.5.1481-1485.1965
更新日期:1965-11-01 00:00:00
abstract::Endonuclease V is specific for single-stranded DNA or for duplex DNA that contains uracil or that is damaged by a variety of agents (B. Demple and S. Linn, J. Biol. Chem. 257:2848-2855, 1982). Thus, it may be a versatile DNA repair enzyme. The protein was purified to apparent homogeneity, and from its N-terminal seque...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.2.310-316.1997
更新日期:1997-01-01 00:00:00
abstract::Isolated cell envelopes of a marine bacterium, M.B.3, have been prepared which possess a nonspecific, cation-activated nucleotidase. The cell envelope comprises approximately 35% (dry weight) of the whole cell and contains protein, 60.2%; lipids, 20.7%; hexose, 3.4%; and ribonucleic acid, 4.6%. No deoxyribonucleic aci...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.99.3.834-841.1969
更新日期:1969-09-01 00:00:00
abstract::An enzyme which liberates Pi from myo-inositol hexaphosphate (phytic acid) was shown to be present in culture filtrates of Bacillus subtilis. It was purified until it was homogeneous by ultracentrifugation, but it still showed two isozymes on polyacrylamide gel electrophoresis. The enzyme differed from other previousl...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.151.3.1102-1108.1982
更新日期:1982-09-01 00:00:00
abstract::Disruption of gene HI0894 or HI0895 in Haemophilus influenzae Rd, homologs of Escherichia coli acrAB multidrug efflux genes, caused hypersusceptibility to erythromycin, rifampin, novobiocin, and dyes such as ethidium bromide and crystal violet and increased accumulation of radioactive erythromycin, showing that these ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.21.6855-6857.1997
更新日期:1997-11-01 00:00:00
abstract::The cheF gene, which is involved in chemotaxis in Bacillus subtilis, has been cloned, expressed, and sequenced. This gene is contained in a 0.7-kilobase PstI DNA fragment that was isolated from a lambda Charon 4A B. subtilis chromosomal DNA library. This fragment was subcloned into the expression vector pSI-1 and show...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.171.3.1631-1637.1989
更新日期:1989-03-01 00:00:00
abstract::Using yeast two-hybrid screens, we have defined an interaction group of six Tra proteins encoded by the F plasmid and required by F(+) cells to elaborate F pili. The six proteins are TraH, TraF, TraW, TraU, TrbI, and TrbB. Except for TrbI, these proteins were all identified as hallmarks of F-like type IV secretion sys...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.186.16.5480-5485.2004
更新日期:2004-08-01 00:00:00
abstract::The phoP-phoQ operon of Salmonella typhimurium is a member of the family of two-component regulatory systems and controls expression of the phoN gene that codes for nonspecific acid phosphatase and the genes involved in the pathogenicity of the bacterium. The phoP-phoQ operon of Escherichia coli was cloned on a plasmi...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.2.492-498.1992
更新日期:1992-01-01 00:00:00
abstract::We report the draft genome sequence of methicillin-resistant Staphylococcus aureus (MRSA) strain ST672, an emerging disease clone in India, from a septicemia patient. The genome size is about 2.82 Mb with 2,485 open reading frames (ORFs). The staphylococcal cassette chromosome mec (SCCmec) element (type V) and immune ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01868-12
更新日期:2012-12-01 00:00:00
abstract::Alkaline phosphatase (APase) is induced as a culture enters stationary phase because of limiting phosphate. The results presented here show that expression of APase is regulated both negatively and positively. PhoP, a homolog of a family of bacterial transcription factors, and PhoR, a homolog of bacterial histidine pr...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.175.12.3749-3756.1993
更新日期:1993-06-01 00:00:00
abstract::Pseudomonas cepacia mutants deficient in either 6-phosphogluconate (6PGA) dehydratase (Edd-) or 2-keto-3-deoxy-6-phosphogluconate (KDPG) aldolase (Eda-) failed to utilize glucose or gluconate despite the prominence of of 6-phosphogluconate dehydrogenase (6PGAD) ii this bacterium and the potential for utilizing the pen...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.150.3.1340-1347.1982
更新日期:1982-06-01 00:00:00
abstract::Transcription of the ferric citrate transport genes of Escherichia coli is induced by ferric citrate bound to the outer membrane receptor FecA. Additional ferric citrate-specific regulatory proteins are FecR in the cytoplasmic membrane and the FecI sigma factor in the cytoplasm. To further understand the assumed FecR-...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.180.9.2387-2394.1998
更新日期:1998-05-01 00:00:00
abstract::An increase in the apparent molecular weight of the principal outer membrane protein (POMP) of Neisseria gonorrhoeae is associated with introduction of the penB2 genetic marker, which results in low-level, relatively nonspecific antibiotic resistance. Limited proteolysis of the two forms of POMP showed that they had f...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.143.2.847-851.1980
更新日期:1980-08-01 00:00:00
abstract::Open reading frame orf192, which is located immediately upstream of the aerobic repressor gene crtJ, was genetically and biochemically demonstrated to code for a second aerobic repressor (AerR) of photosynthesis gene expression in Rhodobacter capsulatus. Promoter-mapping studies indicate that crtJ has its own promoter...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.10.2805-2814.2002
更新日期:2002-05-01 00:00:00
abstract::Coxiella burnetii is a Gram-negative, obligate intracellular bacterial pathogen that resides within the harsh, acidic confines of a lysosome-like compartment of the host cell that is termed a parasitophorous vacuole. In this study, we characterized a thiol-specific peroxidase of C. burnetii that belongs to the atypica...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.01324-09
更新日期:2010-04-01 00:00:00
abstract::Toluene dioxygenase from Pseudomonas putida F1 has been studied extensively with aromatic substrates. The present work examined the toluene dioxygenase-catalyzed oxidation of various halogenated ethenes, propenes, butenes and nonhalogenated cis-2-pentene, an isomeric mix of 2-hexenes, cis-2-heptene, and cis-2-octene a...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.179.12.3858-3865.1997
更新日期:1997-06-01 00:00:00
abstract::The plasmid-encoded yop genes of pathogenic yersiniae are regulated by the environmental stimuli calcium and temperature. A novel protein, LcrQ, which exhibits a key function in the negative calcium-controlled pathway, was identified. DNA sequence analysis revealed that LcrQ has a molecular mass of 12,412 daltons and ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.10.3355-3363.1992
更新日期:1992-05-01 00:00:00
abstract::ibeA is a virulence factor found in some extraintestinal pathogenic Escherichia coli (ExPEC) strains from the B2 phylogenetic group and particularly in newborn meningitic and avian pathogenic strains. It was shown to be involved in the invasion process of the newborn meningitic strain RS218. In a previous work, we sho...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00089-12
更新日期:2012-09-01 00:00:00
abstract::Henle, Gertrude (Children's Hospital of Philadelphia, Philadelphia, Pa.), and Werner Henle. Immunofluorescence in cells derived from Burkitt's lymphoma. J. Bacteriol. 91:1248-1256. 1966.-Indirect immunofluorescence tests led to the brilliant staining of a small proportion of the cells in five different cultures derive...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.91.3.1248-1256.1966
更新日期:1966-03-01 00:00:00
abstract::Sguros, Peter L. (University of Miami, Miami, Fla.), and Jacqueline Simms. Role of marine fungi in the biochemistry of the oceans. IV. Growth responses to seawater inorganic macroconstituents. J. Bacteriol. 88:346-355. 1964.-The filamentous ascomycete Halosphaeria mediosetigera and the deuteromycete Culcitalna achrasp...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.88.2.346-355.1964
更新日期:1964-08-01 00:00:00
abstract::The electron transport system of Neisseria gonorrhoeae was partially characterized by using spectrophotometric, spectroscopic, and oxygen consumption measurements. The effects of selected electron transport inhibitors (amytal, rotenone, 2-heptyl-4-hydroxyquinoline, antimycin A1, and potassium cyanide [KCN]) on electro...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.134.2.537-545.1978
更新日期:1978-05-01 00:00:00
abstract::The conjugally acquired deoxyribonucleic acid (DNA) of small, anucleate cells ("minicells") of a mutant strain of Escherichia coli K-12 was found to be predominantly associated with the bacterial membrane. Evidence from X-irradiation studies in vivo shows that there is no decrease in DNA-membrane association under con...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.106.2.626-633.1971
更新日期:1971-05-01 00:00:00
abstract::Spontaneous mutators of Salmonella typhimurium LT2 were generated by inserting the transposable element Tn5 or Tn10 into the bacterial chromosome. Two mutators mapped at the position of the mutH and mutL loci of S. typhimurium, and two other mutators mapped at positions corresponding to the mutS and uvrD loci of Esche...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.147.3.827-835.1981
更新日期:1981-09-01 00:00:00
abstract::The Escherichia coli dnaN159 allele encodes a mutant form of the beta-sliding clamp (beta159) that is impaired for interaction with the replicative DNA polymerase (Pol), Pol III. In addition, strains bearing the dnaN159 allele require functional Pol I for viability. We have utilized a combination of genetic and bioche...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00476-07
更新日期:2007-07-01 00:00:00
abstract::Halalkalicoccus jeotgali B3(T), isolated from salt-fermented seafood from South Korea, is an extremely halophilic archaeon belonging to the family Halobacteriaceae. Here, we present the complete genome sequence of the type strain H. jeotgali B3(T) (3,698,650 bp, with a G+C content of 62.5%), which consists of one chro...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00663-10
更新日期:2010-09-01 00:00:00
abstract::A temperate phage, phi CTX, is a cytotoxin-converting phage of Pseudomonas aeruginosa. In this study, we characterized the lipopolysaccharide (LPS) structures of phi CTX-resistant mutants derived from phi CTX-sensitive strains. phi CTX infectivity was neutralized by LPS preparations derived from sensitive strains but ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.17.5262-5269.1994
更新日期:1994-09-01 00:00:00
abstract::During conjugation, a single strand of DNA is cleaved at the origin of transfer (oriT) by the plasmid-encoded relaxase. This strand is then unwound from its complement and transferred in the 5'-to-3' direction, with the 3' end likely extended by rolling-circle replication. The resulting, newly synthesized oriT must th...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00818-12
更新日期:2012-10-01 00:00:00
abstract::Cultures of the inducible penicillinase-producing strain 749 of Bacillus licheniformis, induced with small amounts of benzylpenicillin, synthesized penicillinase at a high rate for a short period, after which the rate of synthesis slowly declined. During the period of active synthesis, the rate of secretion, as a frac...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.97.2.820-826.1969
更新日期:1969-02-01 00:00:00