how predict which aminoacid form secondary structure

[kanagasundar]

hi all
How do predict what types of secondary structure (left alpha helices, right alpha helices, parallel beta sheet, anti parallel beta sheet) from amino acid sequence?
Reply as soon as possible

[JackBean]

there are programs, which do that based on probabilities based on real data

[Fred111]

The secondary structure is the general three-dimensional form of local segments of biopolymers such as proteins and nucleic acids. Secondary structure was predicted by using the programs PSIPRED and ALB. The residues predicted as helical are marked by H by PSIPRED and by H and & by ALB, and those predicted as -structural are marked by E by PSIPRED and by S and B by ALB.