SEQ2FUN

BioLiP
Download all results in tab-seperated text for 942758 receptor-ligand interactions, whose format is explained at readme.txt.
  • Hover over PDB to view the title of the structure. Click PDB to view the structure at the RCSB PDB database. Resolution -1.00 means the resolution is unavailable, e.g., for NMR structures.
  • Click Site # to view the binding site structure. Hover over Site # to view the binding residues.
  • Hover over Ligand to view the full ligand name. Click Ligand to view the 2D diagram and other detail information of the ligand.
  • Hover over EC number to view the full name of enzymatic activity.
  • Hover over GO terms to view all GO terms.
  • Hover over UniProt to view the protein name.
  • Sort results by
    << < 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 > >>
    Go to page

    # PDB
    (Resolution Å)
    Site # Ligand EC number GO terms UniProt PubMed Binding
    affinity
    582201 6xtf:A (2.23) BS01 FAD ? GO:0000166 ... Q7NMP6 33599267
    582202 6xtf:B (2.23) BS01 FAD ? GO:0000166 ... Q7NMP6 33599267
    582203 6xtf:C (2.23) BS01 FES ? GO:0009055 ... Q7NFA3 33599267
    582204 6xtf:D (2.23) BS01 FAD ? GO:0009055 ... Q7NFA3 33599267
    582205 6xtf:D (2.23) BS02 FES ? GO:0009055 ... Q7NFA3 33599267
    582206 6xtg:H (1.55) BS01 SIA N/A N/A N/A 34119488
    582207 6xtg:L (1.55) BS01 SIA N/A N/A N/A 34119488
    582208 6xtk:A (1.7) BS01 TCW ? GO:0001523 ... P02766 32324953 MOAD: Kd=0.029uM
    BindingDB: Kd=56nM
    582209 6xtk:B (1.7) BS01 TCW ? GO:0001523 ... P02766 32324953 MOAD: Kd=0.029uM
    BindingDB: Kd=56nM
    582210 6xtl:A (1.8) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582211 6xtl:A (1.8) BS02 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582212 6xtl:A (1.8) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582213 6xtm:A (1.25) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582214 6xtm:A (1.25) BS02 OXY 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582215 6xtm:A (1.25) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582216 6xtm:A (1.25) BS04 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582217 6xtn:A (1.4) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582218 6xtn:A (1.4) BS02 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582219 6xtn:A (1.4) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582220 6xtn:A (1.4) BS04 NO 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582221 6xto:A (1.4) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582222 6xto:A (1.4) BS02 CU1 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582223 6xto:A (1.4) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582224 6xto:A (1.4) BS04 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582225 6xto:A (1.4) BS05 NO 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582226 6xtp:A (1.8) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582227 6xtp:A (1.8) BS02 CU1 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582228 6xtp:A (1.8) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582229 6xtp:A (1.8) BS04 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582230 6xtp:A (1.8) BS05 OXY 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582231 6xtq:A (1.4) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582232 6xtq:A (1.4) BS02 CU1 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582233 6xtq:A (1.4) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582234 6xtq:A (1.4) BS04 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582235 6xtq:A (1.4) BS05 OXY 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582236 6xtr:A (1.2) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582237 6xtr:A (1.2) BS02 CU1 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582238 6xtr:A (1.2) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582239 6xtr:A (1.2) BS04 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582240 6xtr:A (1.2) BS05 OXY 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582241 6xts:A (1.2) BS01 peptide 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582242 6xts:A (1.2) BS02 CU1 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582243 6xts:A (1.2) BS03 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582244 6xts:A (1.2) BS04 CA 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582245 6xts:A (1.2) BS05 OXY 1.8.3.7 GO:0016491 ... D1A7C3 N/A
    582246 6xtv:B (3.3) BS01 ARG ? GO:0003677 ... P94632 32978386
    582247 6xtw:A (2.31) BS01 NZW ? GO:0003677 ... O74036 33662256
    582248 6xtx:2 (3.29) BS01 dna 3.6.4.12 GO:0000727 ... P49736 32453425
    582249 6xtx:2 (3.29) BS02 ZN 3.6.4.12 GO:0000727 ... P49736 32453425
    582250 6xtx:2 (3.29) BS03 ADP 3.6.4.12 GO:0000727 ... P49736 32453425
    582251 6xtx:3 (3.29) BS01 dna 3.6.4.12 GO:0000727 ... P25205 32453425
    582252 6xtx:3 (3.29) BS02 ADP 3.6.4.12 GO:0000727 ... P25205 32453425
    582253 6xtx:3 (3.29) BS03 AGS 3.6.4.12 GO:0000727 ... P25205 32453425
    582254 6xtx:4 (3.29) BS01 ZN 3.6.4.12 GO:0000727 ... P33991 32453425
    582255 6xtx:4 (3.29) BS02 AGS 3.6.4.12 GO:0000727 ... P33991 32453425
    582256 6xtx:4 (3.29) BS03 AGS 3.6.4.12 GO:0000727 ... P33991 32453425
    582257 6xtx:5 (3.29) BS01 dna 3.6.4.12 GO:0000727 ... P33992 32453425
    582258 6xtx:5 (3.29) BS02 ZN 3.6.4.12 GO:0000727 ... P33992 32453425
    582259 6xtx:6 (3.29) BS01 ADP 3.6.4.12 GO:0000727 ... Q14566 32453425
    582260 6xtx:6 (3.29) BS02 AGS 3.6.4.12 GO:0000727 ... Q14566 32453425
    582261 6xtx:6 (3.29) BS03 ZN 3.6.4.12 GO:0000727 ... Q14566 32453425
    582262 6xtx:7 (3.29) BS01 dna 3.6.4.12 GO:0000727 ... P33993 32453425
    582263 6xtx:7 (3.29) BS02 AGS 3.6.4.12 GO:0000727 ... P33993 32453425
    582264 6xtx:7 (3.29) BS03 ZN 3.6.4.12 GO:0000727 ... P33993 32453425
    582265 6xtx:7 (3.29) BS04 AGS 3.6.4.12 GO:0000727 ... P33993 32453425
    582266 6xty:2 (6.77) BS01 ZN 3.6.4.12 GO:0000727 ... P49736 32453425
    582267 6xty:4 (6.77) BS01 ZN 3.6.4.12 GO:0000727 ... P33991 32453425
    582268 6xty:5 (6.77) BS01 ZN 3.6.4.12 GO:0000727 ... P33992 32453425
    582269 6xty:6 (6.77) BS01 ZN 3.6.4.12 GO:0000727 ... Q14566 32453425
    582270 6xty:7 (6.77) BS01 ZN 3.6.4.12 GO:0000727 ... P33993 32453425
    582271 6xtz:A (2.21) BS01 O18 ? GO:0005886 ... Q9VUG1 32699409
    582272 6xu0:A (1.9) BS01 dna ? GO:0003676 ... O28951 N/A
    582273 6xu0:A (1.9) BS02 dna ? GO:0003676 ... O28951 N/A
    582274 6xu0:A (1.9) BS03 MG ? GO:0003676 ... O28951 N/A
    582275 6xu0:B (1.9) BS01 dna ? GO:0003676 ... O28951 N/A
    582276 6xu0:B (1.9) BS02 dna ? GO:0003676 ... O28951 N/A
    582277 6xu0:B (1.9) BS03 MG ? GO:0003676 ... O28951 N/A
    582278 6xu1:A (2.2) BS01 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582279 6xu1:A (2.2) BS02 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582280 6xu1:A (2.2) BS03 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582281 6xu1:A (2.2) BS04 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582282 6xu1:A (2.2) BS05 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582283 6xu1:A (2.2) BS06 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582284 6xu1:A (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582285 6xu1:A (2.2) BS08 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582286 6xu1:B (2.2) BS01 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582287 6xu1:B (2.2) BS02 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582288 6xu1:B (2.2) BS03 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582289 6xu1:B (2.2) BS04 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582290 6xu1:B (2.2) BS05 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582291 6xu1:B (2.2) BS06 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582292 6xu1:B (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582293 6xu1:B (2.2) BS08 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582294 6xu1:C (2.2) BS01 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582295 6xu1:C (2.2) BS02 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582296 6xu1:C (2.2) BS03 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582297 6xu1:C (2.2) BS04 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582298 6xu1:C (2.2) BS05 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582299 6xu1:C (2.2) BS06 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582300 6xu1:C (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582301 6xu1:C (2.2) BS08 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582302 6xu1:D (2.2) BS01 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582303 6xu1:D (2.2) BS02 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582304 6xu1:D (2.2) BS03 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582305 6xu1:D (2.2) BS04 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582306 6xu1:D (2.2) BS05 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582307 6xu1:D (2.2) BS06 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582308 6xu1:D (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582309 6xu1:D (2.2) BS08 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582310 6xu1:E (2.2) BS01 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582311 6xu1:E (2.2) BS02 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582312 6xu1:E (2.2) BS03 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582313 6xu1:E (2.2) BS04 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582314 6xu1:E (2.2) BS05 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582315 6xu1:E (2.2) BS06 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582316 6xu1:E (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582317 6xu1:E (2.2) BS08 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582318 6xu1:F (2.2) BS01 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582319 6xu1:F (2.2) BS02 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582320 6xu1:F (2.2) BS03 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582321 6xu1:F (2.2) BS04 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582322 6xu1:F (2.2) BS05 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582323 6xu1:F (2.2) BS06 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582324 6xu1:F (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582325 6xu1:F (2.2) BS08 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582326 6xu1:G (2.2) BS01 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582327 6xu1:G (2.2) BS02 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582328 6xu1:G (2.2) BS03 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582329 6xu1:G (2.2) BS04 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582330 6xu1:G (2.2) BS05 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582331 6xu1:G (2.2) BS06 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582332 6xu1:G (2.2) BS07 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582333 6xu1:G (2.2) BS08 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582334 6xu1:H (2.2) BS01 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582335 6xu1:H (2.2) BS02 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582336 6xu1:H (2.2) BS03 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582337 6xu1:H (2.2) BS04 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582338 6xu1:H (2.2) BS05 FE 3.1.5.- N/A Q9Y3Z3 32576829
    582339 6xu1:H (2.2) BS06 MG 3.1.5.- N/A Q9Y3Z3 32576829
    582340 6xu1:H (2.2) BS07 DZ4 3.1.5.- N/A Q9Y3Z3 32576829 MOAD: Ki=0.78uM
    582341 6xu1:H (2.2) BS08 GTP 3.1.5.- N/A Q9Y3Z3 32576829
    582342 6xu2:A (2.834) BS01 peptide ? GO:0002753 ... O00410 32222384
    582343 6xu3:A (2.1) BS01 PLP N/A GO:0003824 ... N/A 33242357
    582344 6xu3:B (2.1) BS01 PLG N/A GO:0003824 ... N/A 33242357
    582345 6xu3:B (2.1) BS02 GAB N/A GO:0003824 ... N/A 33242357
    582346 6xu3:C (2.1) BS01 PLG N/A GO:0003824 ... N/A 33242357
    582347 6xu3:D (2.1) BS01 PLP N/A GO:0003824 ... N/A 33242357
    582348 6xu4:A (3.18) BS01 CA ? GO:0000226 ... P60204 32344594
    582349 6xu4:A (3.18) BS02 CA ? GO:0000226 ... P60204 32344594
    582350 6xu4:A (3.18) BS03 CA ? GO:0000226 ... P60204 32344594
    582351 6xu4:A (3.18) BS04 CA ? GO:0000226 ... P60204 32344594
    582352 6xu4:B (3.18) BS01 CA ? GO:0000226 ... P60204 32344594
    582353 6xu4:B (3.18) BS02 CA ? GO:0000226 ... P60204 32344594
    582354 6xu4:B (3.18) BS03 CA ? GO:0000226 ... P60204 32344594
    582355 6xu4:B (3.18) BS04 CA ? GO:0000226 ... P60204 32344594
    582356 6xu4:E (3.18) BS01 CA ? GO:0000226 ... P60204 32344594
    582357 6xu4:E (3.18) BS02 CA ? GO:0000226 ... P60204 32344594
    582358 6xu6:AA (3.5) BS01 rna ? GO:0003735 ... P38979 34283226
    582359 6xu6:AB (3.5) BS01 rna ? GO:0003735 ... P55830 34283226
    582360 6xu6:AC (3.5) BS01 rna ? GO:0003723 ... P31009 34283226
    582361 6xu6:AD (3.5) BS01 rna ? GO:0000278 ... Q06559 34283226
    582362 6xu6:AE (3.5) BS01 rna ? GO:0002181 ... P41042 34283226
    582363 6xu6:AF (3.5) BS01 rna ? GO:0003723 ... Q24186 34283226
    582364 6xu6:AG (3.5) BS01 rna ? GO:0002181 ... P29327 34283226
    582365 6xu6:AH (3.5) BS01 rna ? GO:0002181 ... Q9VA91 34283226
    582366 6xu6:AI (3.5) BS01 rna ? GO:0000462 ... Q8MLY8 34283226
    582367 6xu6:AI (3.5) BS02 rna ? GO:0000462 ... Q8MLY8 34283226
    582368 6xu6:AJ (3.5) BS01 rna ? GO:0000228 ... P55935 34283226
    582369 6xu6:AK (3.5) BS01 rna ? N/A Q9VWG3 34283226
    582370 6xu6:AL (3.5) BS01 rna ? GO:0000228 ... Q0E9B6 34283226
    582371 6xu6:AM (3.5) BS01 rna ? N/A P80455 34283226
    582372 6xu6:AN (3.5) BS01 rna ? GO:0000228 ... Q03334 34283226
    582373 6xu6:AN (3.5) BS02 rna ? GO:0000228 ... Q03334 34283226
    582374 6xu6:AO (3.5) BS01 rna ? GO:0003735 ... C0HKA0 34283226
    582375 6xu6:AP (3.5) BS01 rna ? GO:0003723 ... Q7JZW2 34283226
    582376 6xu6:AQ (3.5) BS01 rna ? GO:0000462 ... Q9W237 34283226
    582377 6xu6:AR (3.5) BS01 rna ? GO:0002181 ... P17704 34283226
    582378 6xu6:AS (3.5) BS01 rna ? GO:0003723 ... P41094 34283226
    582379 6xu6:AT (3.5) BS01 rna ? GO:0000028 ... P39018 34283226
    582380 6xu6:AU (3.5) BS01 rna ? GO:0003723 ... P55828 34283226
    582381 6xu6:AW (3.5) BS01 rna ? GO:0002181 ... P48149 34283226
    582382 6xu6:AX (3.5) BS01 rna ? GO:0002181 ... Q8T3U2 34283226
    582383 6xu6:AY (3.5) BS01 rna ? GO:0002181 ... Q9W229 34283226
    582384 6xu6:AZ (3.5) BS01 rna ? N/A P48588 34283226
    582385 6xu6:Aa (3.5) BS01 rna ? GO:0002181 ... P13008 34283226
    582386 6xu6:Ab (3.5) BS01 rna ? GO:0000028 ... Q9VBU9 34283226
    582387 6xu6:Ac (3.5) BS01 rna ? GO:0000028 ... Q9W334 34283226
    582388 6xu6:Ad (3.5) BS01 rna ? GO:0002181 ... Q9VH69 34283226
    582389 6xu6:Ae (3.5) BS01 rna ? GO:0003735 ... Q7JYY0 34283226
    582390 6xu6:Af (3.5) BS01 rna ? GO:0003735 ... P15357 34283226
    582391 6xu6:Ag (3.5) BS01 rna ? GO:0000423 ... O18640 34283226
    582392 6xu6:CA (3.5) BS01 rna ? GO:0000228 ... Q9V3G1 34283226
    582393 6xu6:CA (3.5) BS02 rna ? GO:0000228 ... Q9V3G1 34283226
    582394 6xu6:CB (3.5) BS01 rna ? GO:0002181 ... O16797 34283226
    582395 6xu6:CC (3.5) BS01 rna ? GO:0002181 ... P09180 34283226
    582396 6xu6:CC (3.5) BS02 rna ? GO:0002181 ... P09180 34283226
    582397 6xu6:CD (3.5) BS01 rna ? GO:0000027 ... Q9W5R8 34283226
    582398 6xu6:CD (3.5) BS02 rna ? GO:0000027 ... Q9W5R8 34283226
    582399 6xu6:CE (3.5) BS01 rna ? GO:0002181 ... Q9V9W2 34283226
    582400 6xu6:CF (3.5) BS01 rna ? GO:0000463 ... P32100 34283226

    Reference:
  • Chengxin Zhang, Xi Zhang, Lydia Freddolino, and Yang Zhang. BioLiP2: an updated structure database for biologically relevent ligand-protein interactions, Nucleic Acids Research, gkad630 (2023).
  • Jianyi Yang, Ambrish Roy, and Yang Zhang. BioLiP: a semi-manually curated database for biologically relevant ligand-protein interactions, Nucleic Acids Research, 41: D1096-D1103 (2013) (download the PDF file).