Access RCSB PDB for 3D protein/nucleic acid structures. Search by text/sequence/structure, download coordinates (PDB/mmCIF), retrieve metadata, for structural biology and drug discovery.

访问 RCSB PDB 获取三维蛋白质/核酸结构。通过文本、序列或结构进行搜索，下载坐标（PDB/mmCIF），检索元数据，用于结构生物学和药物发现。