首页 全所PI名录
  • 刘彩璇
  • 研究员,研究组长,博士生导师
  • E-mail: caixuan.liu@sibcb.ac.cn
  • 实验室主页: 
    个人简介:
  • 2022年毕业于中国科学院大学/上海生物化学与细胞生物学研究所获博士学位;;2022年9月至2026年11月于华盛顿大学蛋白质设计研究所从事博士后研究;拟于2026年11月起任中国科学院分子细胞科学卓越创新中心(生物化学与细胞生物学研究所)研究员,研究组长,博士生导师。

    社会任职:
    研究方向:
  • 人工智能驱动蛋白质从头设计
    研究工作:
  • 蛋白质从头设计(de novo protein design)旨在创造自然界中不存在、具有全新结构与功能的蛋白质,为新型药物、诊断分子和生物材料的开发提供了全新的技术路径。近年来,以生成式人工智能为核心的新一代蛋白质设计方法不断发展,已能够在原子尺度上从头设计具有特定结构和功能的蛋白质,为实现蛋白质功能的“按需设计”提供了新的可能。

    内在无序蛋白质(intrinsically disordered proteins)及含无序区域的蛋白质(IDR-containing proteins)广泛存在于人类蛋白质组中,广泛参与相分离与生物分子凝聚体形成、转录调控、信号转导和蛋白质稳态等关键生命过程,其异常构象、聚集和凝聚体失调与癌症、神经退行性疾病及代谢性疾病等多种重大疾病密切相关。不同于具有稳定三维结构的蛋白质,无序蛋白质缺乏固定构象,依赖动态构象系综及多价、弱相互作用实现生物学功能,因此长期被认为是难以进行理性药物设计的“不可成药”靶点。针对这一长期存在的挑战,课题组负责人近期以扩散生成模型为核心,建立了无需结构、仅凭靶点序列即可从头设计无序蛋白质结合分子的通用平台方法Liu et al., Nature, 2025),为无序蛋白质的精准靶向设计提供了新的技术路径。

    本课题组以人工智能驱动的蛋白质从头设计为核心技术,结合计算生物学、生物化学与细胞生物学等研究手段,聚焦无序蛋白质及生物分子凝聚体的识别、设计与调控,探索无序蛋白质构象系综及相分离行为的可设计规律,发展针对病理性蛋白聚集和异常凝聚体的人工设计分子,并进一步拓展其在重大疾病诊断与治疗中的应用,为传统“不可成药”靶点提供新的分子工具与干预策略。

    承担科研项目情况:
    代表论著:
  • First/Co-first Author Publications:

    1. Liu C#, Wu K#, Choi H#, Han HL, Zhang X, et al. Diffusing protein binders to intrinsically disordered proteins. Nature 2025, 644, 809–817.
    2. Liu C, Jin M, Wang S, Han W, Zhao Q, et al. Pathway and mechanism of tubulin folding mediated by TRiC/CCT along its ATPase cycle revealed using cryo-EM. Commun. Biol. 2023, 6, 531.
    3. Jin M#, Liu C#, Han W, Cong Y. TRiC/CCT chaperonin: structure and function. Macromolecular Protein Complexes II: Structure and Function. 2020, 625-654.
    4. Xu C#, Wang Y#, Liu C#, Zhang C, Han W, et al. Conformational dynamics of SARS-CoV-2 trimeric spike glycoprotein in complex with receptor ACE2 revealed by cryo-EM. Sci. Adv. 2021, 7, eabe5575.
    5. Wang Y#, Liu C#, Zhang C, Wang Y, Hong Q, et al. Structural basis for SARS-CoV-2 Delta variant recognition of ACE2 receptor and broadly neutralizing antibodies. Nat. Commun. 2022, 13, 871.
    6. Zhang C#, Wang Y#, Zhu Y#, Liu C#, Gu C, et al. Development and structural basis of a two-MAb cocktail for treating SARS-CoV-2 infections. Nat. Commun. 2021, 12, 264.
    7. Sun X#, Liu C#, Lu X, Ling Z, Yi C, et al. Unique binding pattern for a lineage of human antibodies with broad reactivity against influenza A virus. Nat. Commun. 2022, 13, 2378.
    8. Zhang C#, Liu C#, Shi J, Wang Y, Xu C, et al. Molecular mechanism of antibody neutralization of coxsackievirus A16. Nat. Commun. 2022, 13, 7854.
    9. Liu C. #, Wang, H. #, Jin, M.*, Han, W.*, Wang, S., Wang, Y., Wang, F., Su, C., Hong, X., Zhao, Q., et al. Cryo-EM study on the homo-oligomeric ring formation of yeast TRiC/CCT subunits reveals TRiC ring assembly mechanism. (bioRxiv, 2021; doi: https://doi.org/10.1101/2021.02.24.432666)

    Co-author Publications:

    1. Wu K#, Jiang H#, Hicks DR#, Liu C, Muratspahić E, et al. Design of intrinsically disordered region binding proteins. (Science 2025)
    2. Zhang JZ, Li X, Batingana AR, Liu C, Jiang H, et al. De novo design of Ras isoform selective binders. (Cell Chem. Biol. 2026)
    3. Jin M*, Han W, Liu C, Zang Y, Li J, Wang F, Wang Y, Cong Y*. An ensemble of cryo-EM structures of TRiC reveals its conformational landscape and subunit specificity. (Proc Natl Acad Sc, 2019).
    4. Zang Y*, Wang H*, Cui Z, Jin M, Liu C, Han W, Wang YX, Cong Y*. Development of a yeast internal-subunit eGFP labeling strategy and its application in subunit identification in eukaryotic group II chaperonin TRiC/CCT. (Scientific Reports, 2018)
    5. Zang Y*, Jin M*, Wang H*, Cui Z, Liu C, et al. Staggered ATP-binding mechanism of eukaryotic chaperonin TRiC/CCT revealed by high-resolution cryo-EM. (Nature Structural & Molecular Biology, 2016).
    6. Li T*, Cai H.*, Yao H.*, Zhou B.* …. Liu C., et al. A synthetic nanobody targeting RBD protects hamsters from SARS-CoV-2 infection. (Nature Communication, 2021)
    7. Yi C,  Su C,  Sun X, Lu X, Si C, Liu C, et al. A human antibody potently neutralizes RSV by targeting the conserved hydrophobic region of prefusion F. (Science China Life Sciences, 2023)
    8. Han W, Jin, Liu C, et al. Structural basis of plp2-mediated cytoskeletal protein folding by TRiC/CCT (Science advances, 2023) 
    9. Wang Y, Xu C, Wang Y, Hong Q, Zhang C, Li Z, Xu S, Zuo Q, Liu C et al.  Conformational dynamics of the Beta and Kappa SARS-CoV-2 spike proteins and their complexes with ACE2 receptor revealed by cryo-EM (Nature Communication, 2021)
    获奖及荣誉:
    研究组成员: