Roskilde University Digital Archive >
RUCs Digitale Projektbibliotek / RU Digital Project Library  >
RUC overbygningsrapporter / RU Projects: Degree Programs >
Projektrapporter og specialer / Projectreports and master thesis >

Please use this identifier to cite or link to this item: http://rudar.ruc.dk/handle/1800/3882

Title: Chromosome II Replication in Vibrio cholerae
Authors: Çilingir, Fatma Gözde
Fredrich, Fabian
Quintero, Johannes
Tanrıöver, Gaye
Advisor: Koch, Birgit
Keywords: Vibrio cholera
replication
minichromosome
Examination Date: 20-Jan-2009
Issue Date: 6-Jan-2009
Abstract: Prokaryotes usually carry a single chromosome. There are also distinct DNA fragments called plasmids that have replication potential and a fixed copy number in each cell. , V.cholerae is an unusual species that carry second chromosome, which has smaller size than the main one. OriCIvc is an expression for the replication origin of V.cholerae main chromosome and OriCIIvc is for the replication origin of V.cholerae second chromosome. E.coli and V.cholerae are the members of γ-proteobacteria family, initiation mechanisms of the main chromosomes of the species are apparently similar, also the replication origins (OriC for E.coli, OriCIvc and OriCIIvc) share similar sequences. Since chromosome initiation mechanism of OriCI is well known, questions about initiation mechanisms on OriCIvc can also be replied. On the other hand, initiation of the second chromosome has a different mechanism. In order to find answers about replication mechanism of the second chromosomes, artificially built minichromosomes can be used. Minichromosome can be defined as origin of replication cloned on plasmids. Worthy to notify is that, minichromosomes do not have any fixed numbers in each cell and can be replicated only once in the cell cycle.2 In our experiment, by using DNA cloning methods i.e. plasmid DNA isolation, agarose gel electrophoresis, polymerase chain reaction (PCR) and some other microbiological methods i.e. transformation of electro competent cells etc. it was aimed to construct new minichromosomes manually and to observe the parameters affecting on copy number control, in other words, replication mechanisms. Further step of this experiment was designated as measuring the copy number distributions of minichromosomes by flow cytometric methods.
URI: http://hdl.handle.net/1800/3882
Subject: Thesis
Education: Molekylærbiologi / Molecular Biology - not master thesis
Appears in Collections:Projektrapporter og specialer / Projectreports and master thesis
Molekylærbiologi rapporter / Molecular Biology Projects

Files in This Item:

File Description SizeFormat
Chromosome_II_Replication_in_Vibrio_cholerae_2k[1].pdf6,25 MBAdobe PDFView/Open


This item is protected by original copyright

Recommend this item

Items in RUDAR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! RUDAR Software Copyright © 2002-2011  Duraspace