- EMDB-39632: The structure of ASFV DNA polymerase in apo state -
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基本情報
登録情報
データベース: EMDB / ID: EMD-39632
タイトル
The structure of ASFV DNA polymerase in apo state
マップデータ
Maybe processed by DeepEMhancer
試料
複合体: The ASFV DNA polymerase
タンパク質・ペプチド: DNA polymerase
キーワード
DNA polymerase / VIRAL PROTEIN
機能・相同性
機能・相同性情報
viral DNA genome replication / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA replication / nucleotide binding / DNA binding 類似検索 - 分子機能
: / DNA polymerase family B, thumb domain / DNA polymerase family B signature. / DNA-directed DNA polymerase, family B, multifunctional domain / DNA-directed DNA polymerase, family B, conserved site / DNA polymerase family B / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family ...: / DNA polymerase family B, thumb domain / DNA polymerase family B signature. / DNA-directed DNA polymerase, family B, multifunctional domain / DNA-directed DNA polymerase, family B, conserved site / DNA polymerase family B / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Ribonuclease H superfamily / Ribonuclease H-like superfamily / DNA/RNA polymerase superfamily 類似検索 - ドメイン・相同性
National Natural Science Foundation of China (NSFC)
81871658
中国
引用
ジャーナル: Nucleic Acids Res / 年: 2024 タイトル: Cryo-EM structure of DNA polymerase of African swine fever virus. 著者: Lu Kuai / Junqing Sun / Qi Peng / Xuejin Zhao / Bin Yuan / Sheng Liu / Yuhai Bi / Yi Shi / 要旨: African swine fever virus (ASFV) is one of the most important causative agents of animal diseases and can cause highly fatal diseases in swine. ASFV DNA polymerase (DNAPol) is responsible for genome ...African swine fever virus (ASFV) is one of the most important causative agents of animal diseases and can cause highly fatal diseases in swine. ASFV DNA polymerase (DNAPol) is responsible for genome replication and highly conserved in all viral genotypes showing an ideal target for drug development. Here, we systematically determined the structures of ASFV DNAPol in apo, replicating and editing states. Structural analysis revealed that ASFV DNAPol had a classical right-handed structure and showed the highest similarity to the structure of human polymerase delta. Intriguingly, ASFV DNAPol has a much longer fingers subdomain, and the thumb and palm subdomain form a unique interaction that has never been seen. Mutagenesis work revealed that the loss of this unique interaction decreased the enzymatic activity. We also found that the β-hairpin of ASFV DNAPol is located below the template strand in the editing state, which is different from the editing structures of other known B family DNAPols with the β-hairpin above the template strand. It suggests that B family DNAPols have evolved two ways to facilitate the dsDNA unwinding during the transition from replicating into editing state. These findings figured out the working mechanism of ASFV DNAPol and will provide a critical structural basis for the development of antiviral drugs.