Getting the Word Around

published or submitted for publicatio

Identification of a new promoter for the response regulator rcsB expression in Salmonella enterica serovar Typhimurium

The RcsCDB (Rcs) phosphorelay system regulates capsule synthesis,flagella production and other cellular activities in several enteric bacteria. This system consists of three proteins: the sensor RcsC, the cognate response regulator RcsB and the histidine-containing phosphotransfer protein RcsD (YojN), which is hypothesized to act as an intermediary in the phosphotransfer from RcsC to RcsB. The rcsC gene is convergently transcribed toward rcsB, which follows rcsD in what appears to be a two-gene operon. Here, it is reported that the overproduction of the rcsB gene represses rcsD transcription, but has a weak effect on its own expression. We demonstrated that the differential rcsD and rcsB expression is due to the activity of two promoters to transcribe the rcsB gene: (1) PrcsDB located upstream of rcsD and (2) PrcsB located within the rcsD coding region. In addition,here it was demonstrated that in Salmonella typhimurium, PrcsB is important to activate the rcsB expression during the stationary growth phase.Fil: Pescaretti, María de Las Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Morero, Roberto Dionisio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Delgado, Monica Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentin

The Ursinus Weekly, March 14, 1932

Men\u27s mass meeting held Thursday night • Debating team enjoys successful road trip • Ball and entertainment given by class of \u2732 • Alfred C. Alspach elected editor-in-chief of Weekly • Grizzly basketeers have rather poor court season • William A. Shimer Ph. D. commencement speaker • Coach Carleton\u27s crew closes difficult season • Philadelphia alumni hold important business meeting • Paris chosen captain of wrestling team • Petitions for WSGA offices called for • Frosh-soph track meet scheduled for April 13 • New speakers at vespers • Win radio debate • Varsity Club to banquet • Rena Grim leading lady • Mr. Simmer speaks on conditions in Germany • Class basketball organized • Frosh quinters down sophs in close fray • Yearling\u27s season reviewed • Ursinus coeds to debate • Athletic council meets • Y representatives elected • Ira L. Bryner of \u2792 dies in California • Official league standing of Eastern college race • Students vs. faculty in battle of the centuryhttps://digitalcommons.ursinus.edu/weekly/2080/thumbnail.jp

The Ursinus Weekly, January 4, 1932

Twelfth League gathering sets conference record • New demonstration debate a trump conference card • Membership more than 50 in League\u27s biggest year • Reading-York work praised by Penn debate mentor • League treasurer\u27s report • Reader\u27s first aid list on unemployment insurance • The debate: Resolved, that extra-curricular activities are over-stressed in Pennsylvania high schoolshttps://digitalcommons.ursinus.edu/weekly/2072/thumbnail.jp

The Ursinus Weekly, January 19, 1931

Contract awarded for new science building • Grizzly grapplers lose to Lafayette 26 to 6 • Athalie presented by Ursinus Music Club • Girls\u27 sextet downs Moravian College 51-14 • Grizzly cagers drop three in a row • Dance held Saturday • Women\u27s Debate Club meets at Maples • Honor system discussed at WSGA meeting • Professor Boswell addresses men\u27s Debating Club • Frosh team splits with Hill and Perkiomen • Macbeth to be given by Ben Greet players • Interfraternity council rushing rules • List of fraternity men • Debating Club tryouts • YWCA play • First semester examination schedulehttps://digitalcommons.ursinus.edu/weekly/2106/thumbnail.jp

The Ursinus Weekly, March 9, 1931

Harry E. Paisley addresses Philadelphia alumni • Dover Road chosen as annual Zwing play • Abraham D. Fetterolf passes away Saturday • Biblical play to be given in Bomberger • Bear tossers win one; lose two during week • Coeds register seventh win in downing Beaver • Affirmative debates in New York area • Robbins chosen to captain 1932 wrestling team • Spring sports schedules announced by Johnson • Prof. Carter, tennis coach • Girls team in informal debate at Swarthmore • Miss Dechant speaks at joint Y meeting • Ursinus director honored • Intra-mural wrestling tournament starts Tuesday • Inter-fraternity basketball • Editorial comment: The church and college life • Dr. Learned addresses faculty on Carnegie study • Stephenson addresses biologists on glands • Vesper services • Freshmen girls receive colors at services Monday • Physics Club meeting • Green Pastures discussed by dramatic society • Coeducation argued by Women\u27s Debating Club • Philosophy Club meets • F. & M. frosh fall before cubs, 31-28 • Bears tie Haverford in practice wrestling meet • Music Club at Pottstownhttps://digitalcommons.ursinus.edu/weekly/2111/thumbnail.jp

The Ursinus Weekly, May 25, 1931

Men\u27s student body elects new council • Seniors are guests at Dr. Omwake\u27s reception • Frosh girls entertain • Faculty interviewed on Ruby pictures • Valedictorian honor awarded to John W. Fertig; Winner active in athletics and campus life • Swarthmore hands bears a 6-0 dose of whitewash • Song service at vespers • Ursinus tracksters close season with brilliant 66-60 victory over Drexel • Lois Strickler to attend Laurel Blossom queen • Ursinus joins intercollegiate league; Jing Johnson the prime mover • Public speaking class banquets at Franklin House • Mother Moore addresses joint YM-YWCA group • Thunder\u27s students will give recital • Girls\u27 tennis team wins final net encounter 6-0 • Ruth Riegel will be editor of Y handbook • Vocal students heard in pleasing recital • Brotherhood elects heads • Alumni in metropolitan area prepare for reunions • Dr. and Mrs. Smith guests at English Club luncheon • Sorority news • Rooms are allotted to the Class of 1935 • New Varsity Club meets • Interesting sidelights gleaned from the Weekly • Miss Hartenstine announces soloists • Tau Kappa Alpha formal initiation is ended with annual fraternity dinner • Ursinus tennis men lose to strong Temple team • Eachus selected captain of 1932 baseball team • Oscar E. Gerney to direct Physical Education Department • Men\u27s faculty club dines at Spring Mountain Househttps://digitalcommons.ursinus.edu/weekly/2120/thumbnail.jp

The Ursinus Weekly, October 13, 1930

Bears trounce Dickinson 19-7 in thrilling conference tilt at Carlisle • Freshmen attend annual banquet Monday evening • Rules for radios drawn up by student council • Father\u27s Day Saturday • College band progressing under capable leaders • Ursinus delegates at debating convention • Poverty Day celebration for Gettysburg contest • Bears picked to win over F. & M., Saturday • Ursinus harriers lose to Union College • College presidents meet at Wilson College • Columbus discussed at vesper services • Music Club presents excellent program • Wilson celebrates sixtieth anniversary • Notice cross country men! • Dr. Sturgis speaker at joint Y meeting • Noted lecturer on air • Dickinson pep meeting • Senior class meeting • Business group elections • Inter-class meet held • Dr. White gives talk on Caribbean trip • Weekly tryouts meet • Sisters meet at Maples • Men\u27s Glee Club makes plans for yearhttps://digitalcommons.ursinus.edu/weekly/2095/thumbnail.jp