We apologize for Proteopedia being slow to respond. For the past two years, a new implementation of Proteopedia has been being built. Soon, it will replace this 18-year old system. All existing content will be moved to the new system at a date that will be announced here.
Non-Standard Residue
From Proteopedia
Any residue not included in the list of Standard Residues is considered Non-Standard.
Examples:
- TPO in 1bkx
Note: the former scheme of designating modified standard nucleotides with plus signs (+A, +C, +G, +I, +T, +U) was discontinued in the PDB remediated project, effective August 1, 2007.
