text: Multiple chemical shift databases and related services have been created to aid structural elucidation of and expert analysis of their NMR spectra. Of them, several informatics tools are dedicated solely to carbohydrates:
  *GlycoSCIENCES.de
  **over 2000 NMR spectra of mammalian glycans
  **search of structure by NMR signals and vice versa
  *CSDB (carbohydrate structure database) contains:
  **over 4000 NMR spectra of bacterial, plant and fungal glycans, 
  **search of structure by NMR signals and vice versa
  **empirical spectra simulation routine optimized for carbohydrates,
  **statistical chemical shift estimation based on HOSE algorithm optimized for carbohydrates,
  **structure generation and NMR-based ranking tool.
  *CASPER (computer assisted spectrum evaluation of regular polysaccharides). contains:
  **chemical shift database, 
  **empirical spectra simulation routine optimized for carbohydrates,
  **online interface. 
  **structure matching tool. Both proton and carbon C and H chemical shifts can be used to access structural information.