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ArcPathVisio Brace Ellipse EndoplasmicReticulum GolgiApparatus HexagonPathVisio MimDegradation Mitochondria Octagon PentagonPathVisio Rectangle RoundedRectangle SarcoplasmicReticulum TriangleEquilateralEast TrianglePathVisio none Origin Orc3 Orc2 Orc5 Orc2 Orc3 Orc5 Orc4 Orc1 Orc3 Orc5 Orc4 Orc2 Cdc6 Cdc6 Cdt1 Cdt1 Geminin Cdc6 Cdt1 Mcm10 Cdt1 Phosphorylation of Mcm 2-7 complex DNA polymerase alpha: primase: origin complex DNA polymerase alpha: primase: origin complex CTP GTP UTP ATP RNA Primer dCTP dGTP dUTP dATP Phosphorylated Orc1 Ubiquitin ATP ADP Phosphorylated Cdc6 Ubiquitinated Orc1 Ubiquitinated Cdc6 Degraded by proteasome in cytosol Degraded by proteasome in cytosol RNA primer-DNA primer RNA primer-DNA primer ATP ADP p49 p58 p70 p180 RFC36 RFC37 RFC38 RFC40 RFC140 Mcm 4,6,7 trimer forms and associates Ubiquitin with the replication fork Orc2 Orc3 RFC Heteropentamer:RNA primer-DNA primer ATP PCNA homotrimer RFC Heteropentamer:RNA primer-DNA primer: RNA primer-DNA primer:origin duplex:PCNA Primase DNA Polymerase a Pre-replicative complex 2. Activation of the pre-replicative complex 3. DNA replication initiation Pre-replicative complex 1. Assembly of the pre-replicative complex Mcm2 Mcm3 Mcm4 Mcm6 Mcm7 Orc Complex Cdc6 Cdt1 Mcm2 Mcm3 Mcm4 Mcm6 Mcm7 4. Switching of origins to post-replicative state 5. Leading/lagging strand synthesis Orc complex Processive complex Orc complex Orc complex Orc complex Mcm5 Mcm5 HOMOLOGY MAPP rpa2 zgc:56310 RPA4 POLA prim1 zgc:110727 POLE2 POLE orc3l ORC2L zgc:77827 zgc:85772 orc1l orc6l gmnn CDT1 UBA52 MCM6 mcm5 mcm4 mcm3 mcm2 MCM7 MCM10 zgc:56598 zgc:77841 rfc5 rfc4 rfc3 zgc:110810 RFC1 pcna ASK zgc:101602 rpa1 zgc:56264 pold2 POLD3 POLD4 POLD1 CDC6 UBC Name: DNA Replication Last Modified: 10/17/2013 Organism: Danio rerio
Description
DNA replication, the basis for biological inheritance, is a fundamental process occurring in all living organisms to copy their DNA. This process is "replication" in that each strand of the original double-stranded DNA molecule serves as template for the reproduction of the complementary strand. Hence, following DNA replication, two identical DNA molecules have been produced from a single double-stranded DNA molecule. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.
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