What are peptides?

Some articles on peptide, peptides:

Class II Bacteriocin - Class IIb
... structure summary The class IIb bacteriocins (two-peptide bacteriocins) require two different peptides for activity ... It includes the alpha enterocins and lactococcin G peptides ... These peptides have some antimicrobial properties they inhibit the growth of Enterococcus spp ...
Antimicrobial Peptides
... Antimicrobial peptides (also called host defense peptides) are an evolutionarily conserved component of the innate immune response and are found among all classes of life ... cells that may represent targets for antimicrobial peptides ... These peptides are potent, broad spectrum antibiotics which demonstrate potential as novel therapeutic agents ...
Label-free Quantification - Matching Corresponding Peptides
... The extracted peptide signals are then mapped across few or multiple LC-MS measurements using their coordinates on the mass-to-charge and retention-time dimensions ... the certainty of matching correct peptide signals across runs ... Peptides that are not expected to change in their expression levels in different biological samples may be used for this purpose ...
Cyclol - Partial Redemption
... Nevertheless, cyclol bonds were identified in small, naturally occurring cyclic peptides in the 1950s ... The classic cyclol reaction is the addition of the NH amine of a peptide group to the C=O carbonyl group of another the resulting compound is now called an azacyclol ... Peptides are naturally produced from the reversion of azacylols, a key prediction of the cyclol model ...
Label-free Quantification - Selecting Discriminatory Peptides
... methods are used to remove systematic artefacts in the peptide intensity values between LC-MS measurements ... Then, discriminatory peptides are identified by selecting the peptides whose normalized intensities are different (e.g ... spectrometers like LTQ OrbiTrap offer the possibility to acquire MS/MS peptide identifications in parallel to the high mass precision measurement of ...