Complex: Thermococcus kodakarensis Pol D DP1 subunit
Complex: Thermococcus kodakarensis Pol D DP2 subunit
Complex: Thermococcus kodakarensis PCNA trimer ring
Complex: pri25DNA
Complex: temp35DNA
Keywords
Family D Polymerase / PCNA / Switch Hook / REPLICATION
Function / homology
Function and homology information
exodeoxyribonuclease I / DNA polymerase complex / single-stranded DNA 3'-5' DNA exonuclease activity / intein-mediated protein splicing / intron homing / DNA catabolic process / DNA strand elongation involved in DNA replication / DNA polymerase processivity factor activity / leading strand elongation / regulation of DNA replication ...exodeoxyribonuclease I / DNA polymerase complex / single-stranded DNA 3'-5' DNA exonuclease activity / intein-mediated protein splicing / intron homing / DNA catabolic process / DNA strand elongation involved in DNA replication / DNA polymerase processivity factor activity / leading strand elongation / regulation of DNA replication / DNA-templated DNA replication / endonuclease activity / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA binding / identical protein binding Similarity search - Function
DNA polymerase II large subunit DP2 / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II small subunit, archaeal / : / DNA polymerase II small subunit, N-terminal domain / DNA polymerase delta/II small subunit family / LAGLIDADG-like domain / Intein splicing domain / Intein ...DNA polymerase II large subunit DP2 / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II small subunit, archaeal / : / DNA polymerase II small subunit, N-terminal domain / DNA polymerase delta/II small subunit family / LAGLIDADG-like domain / Intein splicing domain / Intein / Intein DOD homing endonuclease / Intein DOD-type homing endonuclease domain profile. / DNA polymerase alpha/delta/epsilon, subunit B / DNA polymerase alpha/epsilon subunit B / Homing endonuclease, LAGLIDADG / Intein C-terminal splicing region / Intein C-terminal splicing motif profile. / Hint domain C-terminal / Hint (Hedgehog/Intein) domain C-terminal region / Intein N-terminal splicing region / Intein N-terminal splicing motif profile. / Hint domain N-terminal / Hint (Hedgehog/Intein) domain N-terminal region / Homing endonuclease / Hint domain superfamily / Proliferating cell nuclear antigen, PCNA, conserved site / Proliferating cell nuclear antigen signature 1. / Proliferating cell nuclear antigen, PCNA / Proliferating cell nuclear antigen, PCNA, N-terminal / Proliferating cell nuclear antigen, PCNA, C-terminal / Proliferating cell nuclear antigen, N-terminal domain / Proliferating cell nuclear antigen, C-terminal domain / : / Metallo-dependent phosphatase-like / Nucleic acid-binding, OB-fold Similarity search - Domain/homology
DNA polymerase II large subunit / DNA polymerase II small subunit / DNA polymerase sliding clamp 1 Similarity search - Component
Ministry of Education, Culture, Sports, Science and Technology (Japan)
18K06089
Japan
Ministry of Education, Culture, Sports, Science and Technology (Japan)
17H01818
Japan
Japan Agency for Medical Research and Development (AMED)
19am0101069j0003
Japan
Ministry of Education, Culture, Sports, Science and Technology (Japan)
18K05442
Japan
Ministry of Education, Culture, Sports, Science and Technology (Japan)
26242075
Japan
Japan Science and Technology
JPMJPR12L9
Japan
Japan Agency for Medical Research and Development (AMED)
JP19am01010720231
Japan
Citation
Journal: BMC Biol / Year: 2020 Title: Two conformations of DNA polymerase D-PCNA-DNA, an archaeal replisome complex, revealed by cryo-electron microscopy. Authors: Kouta Mayanagi / Keisuke Oki / Naoyuki Miyazaki / Sonoko Ishino / Takeshi Yamagami / Kosuke Morikawa / Kenji Iwasaki / Daisuke Kohda / Tsuyoshi Shirai / Yoshizumi Ishino / Abstract: BACKGROUND: DNA polymerase D (PolD) is the representative member of the D family of DNA polymerases. It is an archaea-specific DNA polymerase required for replication and unrelated to other known DNA ...BACKGROUND: DNA polymerase D (PolD) is the representative member of the D family of DNA polymerases. It is an archaea-specific DNA polymerase required for replication and unrelated to other known DNA polymerases. PolD consists of a heterodimer of two subunits, DP1 and DP2, which contain catalytic sites for 3'-5' editing exonuclease and DNA polymerase activities, respectively, with both proteins being mutually required for the full activities of each enzyme. However, the processivity of the replicase holoenzyme has additionally been shown to be enhanced by the clamp molecule proliferating cell nuclear antigen (PCNA), making it crucial to elucidate the interaction between PolD and PCNA on a structural level for a full understanding of its functional relevance. We present here the 3D structure of a PolD-PCNA-DNA complex from Thermococcus kodakarensis using single-particle cryo-electron microscopy (EM). RESULTS: Two distinct forms of the PolD-PCNA-DNA complex were identified by 3D classification analysis. Fitting the reported crystal structures of truncated forms of DP1 and DP2 from Pyrococcus ...RESULTS: Two distinct forms of the PolD-PCNA-DNA complex were identified by 3D classification analysis. Fitting the reported crystal structures of truncated forms of DP1 and DP2 from Pyrococcus abyssi onto our EM map showed the 3D atomic structural model of PolD-PCNA-DNA. In addition to the canonical interaction between PCNA and PolD via PIP (PCNA-interacting protein)-box motif, we found a new contact point consisting of a glutamate residue at position 171 in a β-hairpin of PCNA, which mediates interactions with DP1 and DP2. The DNA synthesis activity of a mutant PolD with disruption of the E171-mediated PCNA interaction was not stimulated by PCNA in vitro. CONCLUSIONS: Based on our analyses, we propose that glutamate residues at position 171 in each subunit of the PCNA homotrimer ring can function as hooks to lock PolD conformation on PCNA for ...CONCLUSIONS: Based on our analyses, we propose that glutamate residues at position 171 in each subunit of the PCNA homotrimer ring can function as hooks to lock PolD conformation on PCNA for conversion of its activity. This hook function of the clamp molecule may be conserved in the three domains of life.
History
Deposition
Jul 31, 2019
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Header (metadata) release
Aug 5, 2020
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Map release
Aug 5, 2020
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Update
Oct 16, 2024
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Current status
Oct 16, 2024
Processing site: PDBj / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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