Xu Qi Chen
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Xu Qi Chen has a total of 16 co-authors. Here are the top co-authors by number of shared publications:
- Bai Te Ge
The Second Affiliated Hospital, Liangzhu Laboratory, Zhejiang University School of Medicine 1 Department of General Intensive Care Unit and Department of Biochemistry Hangzhou
1 shared publication - Hao Di Liang
The Second Affiliated Hospital, Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University School of Medicine 6 Department of Biochemistry and Department of Orthopaedic Surgery Hangzhou
1 shared publication - Jia Hui Weng
The Second Affiliated Hospital, Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University School of Medicine 6 Department of Biochemistry and Department of Orthopaedic Surgery Hangzhou
1 shared publication - Jia Li Tao
The Second Affiliated Hospital, Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cell and Regenerative Medicine, Zhejiang University School of Medicine 6 Department of Biochemistry and Department of Orthopaedic Surgery Hangzhou
1 shared publication - Juan Chen
The Second Affiliated Hospital, Liangzhu Laboratory, Zhejiang University School of Medicine 1 Department of General Intensive Care Unit and Department of Biochemistry Hangzhou
1 shared publication - Li Ling Zheng
The Second Affiliated Hospital, Liangzhu Laboratory, Zhejiang University School of Medicine 1 Department of General Intensive Care Unit and Department of Biochemistry Hangzhou
1 shared publication
Latest Publications
- 2 January 2026
- Published by Rockefeller University Press in Journal of Cell Biology
- Vol. 225 (2)
CRM1 inhibits NPAT condensation and histone locus body formation via a competitive occupation strategy
Importins could inhibit the condensation of RNA-binding proteins, while it remains unknown whether exportins elicit a similar function. Here, we identified that exportin CRM1 binds to the nuclear protein NPAT, which initiates and maintains the formation of the histone locus body (HLB), a membraneless nuclear body regulating histone transcription. CRM1 drives the nuclear export of NPAT by targeting a nuclear export signal (NES) within the LisH domain. The LisH domain contributes to NPAT condensation by mediating its self-association. Mechanistically, CRM1 competitively occupies the self-association sites in the NES motif, thereby suppressing NPAT condensation. In contrast, the two recurrent CRM1 E571K and E571G mutants could not regulate NPAT condensation and HLB remodeling due to their impaired binding to the NES of NPAT. Based on the “competitive occupation” model, we designed a LisH domain–derived short peptide that competes with homotypic intermolecular interactions of NPAT to perturb HLB formation. Our findings reveal that exportin regulates nuclear protein condensation via a competitive occupation strategy.
- 2 January 2026
- Published by Rockefeller University Press in Journal of Cell Biology
- Vol. 225 (2)
CRM1 inhibits NPAT condensation and histone locus body formation via a competitive occupation strategy
Importins could inhibit the condensation of RNA-binding proteins, while it remains unknown whether exportins elicit a similar function. Here, we identified that exportin CRM1 binds to the nuclear protein NPAT, which initiates and maintains the formation of the histone locus body (HLB), a membraneless nuclear body regulating histone transcription. CRM1 drives the nuclear export of NPAT by targeting a nuclear export signal (NES) within the LisH domain. The LisH domain contributes to NPAT condensation by mediating its self-association. Mechanistically, CRM1 competitively occupies the self-association sites in the NES motif, thereby suppressing NPAT condensation. In contrast, the two recurrent CRM1 E571K and E571G mutants could not regulate NPAT condensation and HLB remodeling due to their impaired binding to the NES of NPAT. Based on the “competitive occupation” model, we designed a LisH domain–derived short peptide that competes with homotypic intermolecular interactions of NPAT to perturb HLB formation. Our findings reveal that exportin regulates nuclear protein condensation via a competitive occupation strategy.