Here is the sequence logo predicted by the SAM server.

H = helix
E = sheet
C = loop (or coil)

The taller the letter at each position, the higher the probability of that specific secondary structure for that amino acid.

For example, the Valine at residue 3 is highly predicted to be part of a sheet. However, the Valine at residue 116 is predicted to be anything.

It seems like the placement and identity of the other segments force that sequence to be a loop, rather than a (as predicted by the server to be slightly more likely) sheet.

Is this a previously unsolved protein, or is this just enhancing a known or previously predicted structure?

I can't tell from the CASP site, since 90% of what's on there is gibberish to a layman.

so these are all blind targets where the natives have not been released yet.
Here is the target list so you can see when the expiration deadlines are: http://predictioncenter.org/casprol/targetlist.cgi