Abstract:
:We introduce a new methodology named ligand profiling and identification for effective discovery of bioactive ligands such as peptide hormones. This technology was developed from a new concept of parallel column chromatography and active fraction profiling by nano-LC MS. Traditional methods use sequential column chromatography, and thus are inevitably limited by the low abundance of the peptide of interest and by a low yield due to the many column steps. Using this new technology, insulin was successfully identified and diarginylinsulin, a minor intermediate form of insulin, was unexpectedly also identified simultaneously from 100 mg of porcine pancreatic tissue. This integrative technology could be used to search for various low-abundance peptides (or bioactive molecules) rapidly and simultaneously, by applying this to the later stages of traditional sequential purification.
journal_name
Proteomicsjournal_title
Proteomicsauthors
Baek MC,Kim SJ,Yea K,Kim Y,Lee BD,Kim J,Lee HJ,Kang MH,Choi SK,Kim JI,Lee TG,Suh PG,Ryu SHdoi
10.1002/pmic.200500511subject
Has Abstractpub_date
2006-03-01 00:00:00pages
1741-9issue
6eissn
1615-9853issn
1615-9861journal_volume
6pub_type
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