Peptide Acceptors for N-linked glycosylation

[Randall Howard]

I am searching for a source(s) of small peptides that can function as an
oligosaccharide acceptor of the N-linked glycosylation reaction.  They
will be used in rabbit reticulocyte lysate-microsome coupled in vitro
translation reactions.  These peptides would therefore contain the
sequence Asn-Xxx-Thr/Ser.  I would appreciate information about both
possible academic and commercial sources.  Thanks. 

Randy Howard