Peptide Structure Analyzer and Visualizer

Analyze and visualize peptide structures from SMILES notation:

  1. Validates if the input is a peptide structure
  2. Determines if the peptide is cyclic
  3. Parses the amino acid sequence
  4. Creates 2D structure visualization with residue annotations

Input: Either enter a SMILES string directly or upload a text file containing SMILES strings

Example SMILES strings (copy and paste):

CC(C)C[C@@H]1NC(=O)[C@@H](CC(C)C)N(C)C(=O)[C@@H](C)N(C)C(=O)[C@H](Cc2ccccc2)NC(=O)[C@H](CC(C)C)N(C)C(=O)[C@H]2CCCN2C1=O

C(C)C[C@@H]1NC(=O)[C@@H]2CCCN2C(=O)[C@@H](CC(C)C)NC(=O)[C@@H](CC(C)C)N(C)C(=O)[C@H](C)NC(=O)[C@H](Cc2ccccc2)NC1=O

CC(C)C[C@H]1C(=O)N(C)[C@@H](Cc2ccccc2)C(=O)NCC(=O)N[C@H](C(=O)N2CCCCC2)CC(=O)N(C)CC(=O)N[C@@H]([C@@H](C)O)C(=O)N(C)[C@@H](C)C(=O)N[C@@H](COC(C)(C)C)C(=O)N(C)[C@@H](Cc2ccccc2)C(=O)N1C

Example Peptide strings (copy and paste):

AGFS

Ala-Gly-Phe-Ser

Aib-Dtg-Ser

Analyze peptide SMILES, detect cyclicity, parse sequence, and annotate.