Re: Post-translational modifications by MALDI

Gary Hathaway (hathaway@cco.caltech.edu)
Sat, 30 May 1998 04:55:25 -0700

At 10:56 AM -0700 5/29/98, Patrick McAtee wrote:
>I realize that this probably has been posted, but does anybody have a
>table of post-translational mass modifications that are detected by
>MALDI and the approximate mass differences-i.e. like N-terminal
>acetylation is +43 Da from expected.
>
Pat,
You might try delta mass if you haven't already at:
http://www.medstv.unimelb.edu.au/WWWDOCS/SVIMRDocs/MassSpec/deltamassV2.html
Also Ken Walsh's site has many useful delta mass values for amino acid
substitutions. Hope this is of some help.
regards

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Gary M. Hathaway, Director
PPMAL - Protein/Peptide Micro Analytical Laboratory
California Institute of Technology
139-74, Division of Biology
Pasadena, CA 91125

http://www.cco.caltech.edu/~ppmal
email Gary: hathaway@caltech.edu
email facility: ppmal@caltech.edu
phone: lab (818) 395-6388 or office (818) 395-2769
FAX (818) 449-3414
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