3P21
STRUCTURE OF $RAS PROTEIN
- DOI: 10.2210/pdb3P21/pdb
- Deposited: 1990-01-22 Released: 1990-04-15 
- Entry 3P21 was removed from the distribution of released PDB entries (status Obsolete) on 1992-07-15.
- It has been replaced (superseded) by 2Q21.