Results 51 to 60 of about 196,060 (141)

Identification of ORC1/CDC6-interacting factors in Trypanosoma brucei reveals critical features of origin recognition complex architecture.

open access: yesPLoS ONE, 2012
DNA replication initiates by formation of a pre-replication complex on sequences termed origins. In eukaryotes, the pre-replication complex is composed of the Origin Recognition Complex (ORC), Cdc6 and the MCM replicative helicase in conjunction with ...
Calvin Tiengwe   +7 more
doaj   +1 more source

RNAP-II molecules participate in the anchoring of the ORC to rDNA replication origins. [PDF]

open access: yesPLoS ONE, 2013
The replication of genomic DNA is limited to a single round per cell cycle. The first component, which recognises and remains bound to origins from recognition until activation and replication elongation, is the origin recognition complex.
Maria D Mayan
doaj   +1 more source

Cell Cycle Dependent Regulation of the Origin Recognition Complex [PDF]

open access: yesCell Cycle, 2004
The eukaryotic origin recognition complex (ORC) not only selects the sites where prereplication complexes are assembled and DNA replication begins, it is the first in a series of multiple coherent pathways that determines when prereplication complexes are assembled. Data from yeast, frogs, flies and mammals present a compelling case that one or more of
openaire   +2 more sources

Mechanism of Origin DNA Recognition and Assembly of an Initiator-Helicase Complex by SV40 Large Tumor Antigen

open access: yesCell Reports, 2013
The DNA tumor virus Simian virus 40 (SV40) is a model system for studying eukaryotic replication. SV40 large tumor antigen (LTag) is the initiator/helicase that is essential for genome replication.
Y. Paul Chang   +5 more
doaj   +1 more source

The origin recognition complex is dispensable for endoreplication in Drosophila [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
The origin recognition complex (ORC) is an essential component of the prereplication complex (pre-RC) in mitotic cell cycles. The role of ORC as a foundation to assemble the pre-RC is conserved from yeast to human. Furthermore, in metazoans ORC plays a key role in determining the timing of replication initiation and origin usage ...
So Young, Park, Maki, Asano
openaire   +2 more sources

Assembly of functionally active Drosophila origin recognition complex from recombinant proteins [PDF]

open access: yesGenes & Development, 1999
In eukaryotes the sites for the initiation of chromosomal DNA replication are believed to be determined in part by the binding of a heteromeric origin recognition complex (ORC) to DNA. We have cloned the genes encoding the subunits of the Drosophila ORC.
I, Chesnokov   +3 more
openaire   +2 more sources

The origin recognition complex interacts with a subset of metabolic genes tightly linked to origins of replication.

open access: yesPLoS Genetics, 2009
The origin recognition complex (ORC) marks chromosomal sites as replication origins and is essential for replication initiation. In yeast, ORC also binds to DNA elements called silencers, where its primary function is to recruit silent information ...
Erika Shor   +13 more
doaj   +1 more source

The Origin Recognition Complex: where it all begins

open access: yesThe FASEB Journal, 2018
Binding of the Origin Recognition Complex (ORC) to origins of replication marks the first step in the initiation of replication of the genome in all eukaryotic cells. I will present the structure of the active form of human ORC determined by X‐ray crystallography and cryo‐electron microscopy.
Leemor Joshua‐Tor   +6 more
openaire   +1 more source

A new class of disordered elements controls DNA replication through initiator self-assembly

open access: yeseLife, 2019
The initiation of DNA replication in metazoans occurs at thousands of chromosomal sites known as origins. At each origin, the Origin Recognition Complex (ORC), Cdc6, and Cdt1 co-assemble to load the Mcm2-7 replicative helicase onto chromatin.
Matthew W Parker   +6 more
doaj   +1 more source

The Eukaryotic Mismatch Recognition Complexes Track with the Replisome during DNA Synthesis.

open access: yesPLoS Genetics, 2015
During replication, mismatch repair proteins recognize and repair mispaired bases that escape the proofreading activity of DNA polymerase. In this work, we tested the model that the eukaryotic mismatch recognition complex tracks with the advancing ...
Joanna E Haye, Alison E Gammie
doaj   +1 more source

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