<i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation

Solar ultraviolet radiation (UV) may cause DNA damage. We first report in this study that the large subunit ribosome protein RPL12, from <i>Bomby mori</i> (BmRPL12), participated in UV-induced DNA damage repair. BmRPL12 enhanced the resistance of <i>Escherichia coli</i> (<...

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Main Authors: Qi Tang, Ceru Chen, Jiaying Huang, Guohui Li, Feifei Zhu, Qian Yu, Lindan Sun, Huiqing Chen, Liang Chen, Shangshang Ma, Xiaoyong Liu, Keping Chen
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Insects
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Online Access:https://www.mdpi.com/2075-4450/16/2/187
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author Qi Tang
Ceru Chen
Jiaying Huang
Guohui Li
Feifei Zhu
Qian Yu
Lindan Sun
Huiqing Chen
Liang Chen
Shangshang Ma
Xiaoyong Liu
Keping Chen
author_facet Qi Tang
Ceru Chen
Jiaying Huang
Guohui Li
Feifei Zhu
Qian Yu
Lindan Sun
Huiqing Chen
Liang Chen
Shangshang Ma
Xiaoyong Liu
Keping Chen
author_sort Qi Tang
collection DOAJ
description Solar ultraviolet radiation (UV) may cause DNA damage. We first report in this study that the large subunit ribosome protein RPL12, from <i>Bomby mori</i> (BmRPL12), participated in UV-induced DNA damage repair. BmRPL12 enhanced the resistance of <i>Escherichia coli</i> (<i>E. coli</i>) to UV radiation and facilitated faster repair of UV-induced DNA damage in silkworm cells. BmRPL12 mainly existed in the cytoplasm in the dimer forms, and the N-terminal nuclear export signal was crucial for the localization of BmRPL12. After UV radiation, BmRPL12 was unable to localize at the UV-induced DNA damage sites to participate in damage repair directly and might indirectly regulate UV-induced DNA damage repair. Our previous research found that BmNPV Bm65 was an important UV damage-induced endonuclease. Here, it was further found that in BmNPV-infected silkworm cells, BmRPL12 in monomeric forms interacted with the virus Bm65 protein only after UV radiation, and BmRPL12 specifically localized at the UV-induced DNA damage sites only in the presence of Bm65. We speculate that after viral infection in cells subjected to UV-induced DNA damage, viral protein Bm65 interacts with BmRPL12 and localizes BmRPL12 to sites of UV-damaged DNA.
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spelling doaj-art-94de8e4c7fa74ad1aafe092251dd81042025-08-20T02:44:46ZengMDPI AGInsects2075-44502025-02-0116218710.3390/insects16020187<i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet RadiationQi Tang0Ceru Chen1Jiaying Huang2Guohui Li3Feifei Zhu4Qian Yu5Lindan Sun6Huiqing Chen7Liang Chen8Shangshang Ma9Xiaoyong Liu10Keping Chen11School of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSchool of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, ChinaSolar ultraviolet radiation (UV) may cause DNA damage. We first report in this study that the large subunit ribosome protein RPL12, from <i>Bomby mori</i> (BmRPL12), participated in UV-induced DNA damage repair. BmRPL12 enhanced the resistance of <i>Escherichia coli</i> (<i>E. coli</i>) to UV radiation and facilitated faster repair of UV-induced DNA damage in silkworm cells. BmRPL12 mainly existed in the cytoplasm in the dimer forms, and the N-terminal nuclear export signal was crucial for the localization of BmRPL12. After UV radiation, BmRPL12 was unable to localize at the UV-induced DNA damage sites to participate in damage repair directly and might indirectly regulate UV-induced DNA damage repair. Our previous research found that BmNPV Bm65 was an important UV damage-induced endonuclease. Here, it was further found that in BmNPV-infected silkworm cells, BmRPL12 in monomeric forms interacted with the virus Bm65 protein only after UV radiation, and BmRPL12 specifically localized at the UV-induced DNA damage sites only in the presence of Bm65. We speculate that after viral infection in cells subjected to UV-induced DNA damage, viral protein Bm65 interacts with BmRPL12 and localizes BmRPL12 to sites of UV-damaged DNA.https://www.mdpi.com/2075-4450/16/2/187<i>Bombyx mori</i>BmNPVultraviolet radiationDNA damage repairprotein-protein interaction
spellingShingle Qi Tang
Ceru Chen
Jiaying Huang
Guohui Li
Feifei Zhu
Qian Yu
Lindan Sun
Huiqing Chen
Liang Chen
Shangshang Ma
Xiaoyong Liu
Keping Chen
<i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation
Insects
<i>Bombyx mori</i>
BmNPV
ultraviolet radiation
DNA damage repair
protein-protein interaction
title <i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation
title_full <i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation
title_fullStr <i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation
title_full_unstemmed <i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation
title_short <i>Bombyx mori</i> RPL12 Participates in UV-Induced DNA Damage Repair and Interacts with BmNPV Bm65 Protein Only After Ultraviolet Radiation
title_sort i bombyx mori i rpl12 participates in uv induced dna damage repair and interacts with bmnpv bm65 protein only after ultraviolet radiation
topic <i>Bombyx mori</i>
BmNPV
ultraviolet radiation
DNA damage repair
protein-protein interaction
url https://www.mdpi.com/2075-4450/16/2/187
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