Secondary Structure Prediction

[JJ Miranda]

Hi all,

In Tom Creighton's book "Proteins:  Structures and Molecular Properties," 
he noted that

"identical pentapeptides adopted the same secondary structure in 
unrelated proteins of known structure in only 20% of the cases."

He has a list of references at the end of the "Predicting Secondary 
Structure" section, but I'm not sure which ref it's in.  Has anyone ever 
read anything like this before?

Sincere regards,
JJ Miranda