Beta Turn Predictor

Hello,

What protocol is used to predict beta turns in the QUARK server?

Do you all have a server for that?

Suppose i give as input a sequence to QUARK for testing, and there is already a structure for the sequence in PDB.
Will QUARK do ab-initio prediction for the beta turns? Or will it pull out the structure corresponding to the sequence from the PDB and pull out beta turns from the structure?

Thank you very much!