DSSP

http://swift.cmbi.ru.nl/gv/dssp/

HSSP

http://swift.cmbi.ru.nl/gv/hssp/

NMR

http://www.bmrb.wisc.edu/

NRG

http://www.rcsb.org/pdb/statistics/holdings.do

NRG-CING

http://nmr.cmbi.ru.nl/NRG-CING/

NRG-DOCR

http://restraintsgrid.bmrb.wisc.edu/NRG/MRGridServlet

PDB

http://www.wwpdb.org/

PDBFINDER

http://swift.cmbi.ru.nl/gv/pdbfinder/

PDBFINDER2

http://swift.cmbi.ru.nl/gv/pdbfinder/

PDB_REDO

http://www.cmbi.ru.nl/pdb_redo/

PDBREPORT

http://swift.cmbi.ru.nl/gv/pdbreport/

RECOORD

http://www.ebi.ac.uk/msd-srv/docs/NMR/recoord/main.html

STRUCTUREFACTORS

http://www.pdb.org/