A field guide to scientific language
Read peptide sequences, names and identifiers.
Translate a sequence, match a name to a structure record, and find the material details that belong in a research note.
Read a peptide sequence →Start with the language
Concepts with contextHow to Read Peptide Sequence Notation: One-Letter Codes and Termini
Transcribe one-letter residue codes, identify N-terminal acetylation and C-terminal amidation, and record which structural details are specified.
Peptide Free Form, Acetate or TFA: Compare Material Descriptions
Compare covalent structures and salt or physical forms, and check what a material amount describes.
How to Check Peptide Names, CAS Numbers and PubChem IDs
Resolve names to chemical structures or sequence features using two examples from public databases.
Open teaching materials
Amino acid code reference and peptide notation exercises
Look up the 20 common one-letter and three-letter amino acid codes, then practice keeping a base sequence separate from termini, modifications and unknown residues.
Explore the examples and downloads →Read a peptide sequence
Read a plain one-letter amino-acid sequence and inspect its residue count and composition.