Protein 3000 Structure Gallery is a comprehensive collection of structural data produced from the National Project on Protein Structural and Functional Analyses (2002-2006, commonly called "Protein 3000 Project" and the preceding Project of the Targeted Proteins Research Program (TPRP, 2007-2011)) funded by MEXT.
You can search and browse "Protein 3000" structures at this site.
The Information Platform team of TPRP produces and maintains the site since one of its missions is to disseminate information on TPRP and its related activities.