-- not yet implemented in Chimera --

Usage:
addaa residue_type,residue_number[,conformation] preceding_residue

Addaa adds an amino acid of type residue_type with sequence number residue_number in the specified conformation after the specified preceding_residue. Conformation may be ext (extended, the default), alpha (alpha helix), pbeta (parallel beta sheet), or abeta (antiparallel beta sheet).

Residue must be the last residue of a chain. The temperature factor for the new residue is set to the highest currently found in the model.

Example:

addaa tyr,30 #0:29
- add tyrosine in extended conformation as residue 30, after residue #0:29