[Biojava-l] Group to AminoAcid ?

[Jay Vyas]

Hi Everyone :  Im trying to convert a "Group" to an "AminoAcid" in biojava,
so that I can use the "getPhi()" "getPsi()" on my protein.  My input is just
a Chain of Groups (typical pdb structure).

I figured maybe I could make one using the AminoAcid constructor, so I tried

//Group g
new AminoAcidImpl(g)

but of course, this isnt in the api.

Any ideas ?