[DeltaForce]

I've got peaks of 867.9 and 1079.1 on the MALDI-TOF spec using CHCA as a matrix, mass gate 700Da and range >5000Da - is there supposed to be a database that we can look up what these two peaks could be?

All I know so far is that they represent some kind of peptide... new to this so would appreciate a helping hand, thanks!! 

[Ψ×Ψ]

As far as I know, you either know the mass of what you were trying to make, or you guess as to what it could be.  I'm a synthetic chemist doing nothing at all with peptides, though, so probably no help here.  You might try the NCBI site or Expasy, though?

[Palmbeach]

Hi!

The peaks you have correlates to different charge states of the peptides you see, m/z. The database you can look them up in is Protein proscpetor  http://prospector.ucsf.edu/. Use the MS-Fit link to search your m/z. I dont think you will get any hit because there need to be more m/z to identify the protein. 2 peptides is not enought. Do you have access to electrospray MS, then you could sequnesing them also!

Best regards Rikard fristedt