scholarly journals DNA Replication in Archaea, the Third Domain of Life

10.5772/53986 ◽  
2013 ◽  
Author(s):  
Yoshizumi Ishino ◽  
Sonoko Ishino
Keyword(s):  
Dna Replication ◽  
The Third

scholarly journals The Drosophila ACE3 chorion element autonomously induces amplification.

1992 ◽  
Vol 12 (5) ◽  
pp. 2444-2453 ◽  
Author(s):  
J L Carminati ◽  
C G Johnston ◽  
T L Orr-Weaver
Keyword(s):  
Dna Replication ◽  
Dna Sequences ◽  
Regulatory Elements ◽  
P Element ◽  
Follicle Cells ◽  
Control Element ◽  
The Third ◽  
Transposon Insertion ◽  
Multiple Copies ◽  
Flanking Sequences

The Drosophila chorion genes amplify in the follicle cells by repeated rounds of reinitiation of DNA replication. ACE3 (amplification control element from the third chromosome) has been identified by a series of deletion experiments as an important control element for amplification of the third-chromosome chorion cluster. Several elements that quantitatively enhance amplification also have been defined. We show that a single 440-bp ACE3 sequence is sufficient to regulate amplification with proper developmental specificity autonomously from other chorion DNA sequences and regulatory elements. Although ACE3 is sufficient for amplification, the levels of amplification are low even when ACE3 is present in multiple copies. When controlled solely by ACE3, amplification initiates either at ACE3 or within closely linked sequences. Amplification of an ACE3 transposon insertion produces a gradient of amplified DNA that extends into flanking sequences approximately the same distance as does the amplification gradient at the endogenous chorion locus. The profile and extent of the amplified gradient imply that the low levels of amplification observed are the result of limited rounds of initiation of DNA replication. Transposon inserts containing multiple copies of ACE3 in a tandem, head-to-tail array are maintained stably in the chromosome. However, mobilization of the P-element transposons containing ACE3 multimers results in deletions within the array at a high frequency.

INCOMPLETE SYNCHRONY OF LABELLING IN HOMOLOGUES OF THE AUTOSOMAL PAIRS

1970 ◽  
Vol 12 (4) ◽  
pp. 927-933
Author(s):  
K. Y. Jan ◽  
J. W. Boyes
Keyword(s):  
Dna Replication ◽  
Musca Domestica ◽  
Labelling Index ◽  
Brain Cells ◽  
Larval Brain ◽  
The Third

The 10 autosomes of Musca domestica L. ocra strain are somatically paired and each pair is cytologically recognizable. Thymidine-methyl-H3 incorporation into the third instar larval brain cells and subsequent autoradiography revealed that the co-labelling index for the two homologues of a pair appears to be correlated to some extent with the labelling rate for that particular pair. The homologues are often but not always labelled at the same time, even when all the autosomal pairs have a high labelling rate. Thus, there does not seem to be strict synchrony of DNA replication for the two homologues of a pair.

scholarly journals Haloferax volcanii —a model archaeon for studying DNA replication and repair

Open Biology ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 200293
Author(s):  
Patricia Pérez-Arnaiz ◽  
Ambika Dattani ◽  
Victoria Smith ◽  
Thorsten Allers
Keyword(s):  
Dna Replication ◽  
Genetic Manipulation ◽  
Haloferax Volcanii ◽  
Cellular Biology ◽  
Phenotypic Screening ◽  
The Third ◽  
Dna Replication And Repair ◽  
Repair Pathways ◽  
Halophilic Species ◽  
The Relationship

The tree of life shows the relationship between all organisms based on their common ancestry. Until 1977, it comprised two major branches: prokaryotes and eukaryotes. Work by Carl Woese and other microbiologists led to the recategorization of prokaryotes and the proposal of three primary domains: Eukarya, Bacteria and Archaea. Microbiological, genetic and biochemical techniques were then needed to study the third domain of life. Haloferax volcanii , a halophilic species belonging to the phylum Euryarchaeota, has provided many useful tools to study Archaea, including easy culturing methods, genetic manipulation and phenotypic screening. This review will focus on DNA replication and DNA repair pathways in H. volcanii , how this work has advanced our knowledge of archaeal cellular biology, and how it may deepen our understanding of bacterial and eukaryotic processes.

scholarly journals Insights into DNA replication from the third domain of life

2000 ◽  
Vol 97 (6) ◽  
pp. 2399-2401 ◽  
Author(s):  
B. K. Tye
Keyword(s):  
Dna Replication ◽  
The Third

scholarly journals Rapid progress of DNA replication studies in Archaea, the third domain of life

2012 ◽  
Vol 55 (5) ◽  
pp. 386-403 ◽  
Author(s):  
Yoshizumi Ishino ◽  
Sonoko Ishino
Keyword(s):  
Dna Replication ◽  
Rapid Progress ◽  
Replication Studies ◽  
The Third

Structural lessons in DNA replication from the third domain of life

2003 ◽  
Vol 10 (3) ◽  
pp. 148-150 ◽  
Author(s):  
Zvi Kelman ◽  
Jerard Hurwitz
Keyword(s):  
Dna Replication ◽  
The Third

scholarly journals Multiplication and division: Archaic modes of DNA replication initiation

2004 ◽  
Vol 26 (3) ◽  
pp. 11-15
Author(s):  
Nicholas P. Robinson ◽  
Stephen D. Bell
Keyword(s):  
Cell Division ◽  
Dna Replication ◽  
Genetic Material ◽  
Replication Initiation ◽  
Eukaryotic Cells ◽  
Bacterial Cells ◽  
Proliferating Cells ◽  
Dna Replication Initiation ◽  
The Third ◽  
Single Origin

Proliferating cells must produce a complete and accurate copy of their genetic material by DNA replication prior to cell division, and in all organisms this duplication begins at discrete sites known as replication origins. In eukaryotic cells, DNA synthesis is initiated from a large number of these regions, whereas bacterial cells replicate less complex genomes from a single origin. It is only in recent years that the process of replication initiation has become elucidated in the third domain of life, the Archaea.

In VitroProtein-primed Initiation of Pneumococcal Phage Cp-1 DNA Replication Occurs at the Third 3′ Nucleotide of the Linear Template: A Stepwise Sliding-back Mechanism

1996 ◽  
Vol 260 (3) ◽  
pp. 369-377 ◽  
Author(s):  
Ana C. Martı́n ◽  
Luis Blanco ◽  
Pedro Garcı́a ◽  
Margarita Salas ◽  
Juan Méndez
Keyword(s):  
Dna Replication ◽  
The Third

Characterization of the third origin of DNA replication of the genome of insect iridescent virus type 6

Virus Genes ◽  
1992 ◽  
Vol 6 (4) ◽  
pp. 333-342 ◽  
Author(s):  
Kai-Christian Sonntag ◽  
Gholamreza Darai
Keyword(s):  
Dna Replication ◽  
Virus Type ◽  
Iridescent Virus ◽  
The Third ◽  
Origin Of Dna Replication
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