Structure of PDB 3tos Chain G Binding Site BS01

Receptor Information

>3tos Chain G (length=252) Species: 1877 (Micromonospora echinospora)

GQDLRAFVHDSPEETETTQRLTKLLTNSPIPTEELVNNLPLFLRRHQMTD
LLSMDALYRQVLDVPGVIMEFGVRFGRHLGTFAALRGVYEPYNPLRRIVG
FDTFTGFPDVNDVDRVGPTAYQGRFAVPGGYPAYLKEVLDAHECSDFFGH
VTQRSVLVEGDVRETVPRYLAENPQTVIALAYFDLDLYEPTKAVLEAIRP
YLTKGSIVAFDELDNPKWPGENIAMRKVLGLDHAPLRLLPGRPAPAYLRW
GD

Ligand information

• Ligand ID: SAH
• InChI: InChI=1S/C14H20N6O5S/c15-6(14(23)24)1-2-26-3-7-9(21)10(22)13(25-7)20-5-19-8-11(16)17-4-18-12(8)20/h4-7,9-10,13,21-22H,1-3,15H2,(H,23,24)(H2,16,17,18)/t6-,7+,9+,10+,13+/m0/s1
• InChIKey: ZJUKTBDSGOFHSH-WFMPWKQPSA-N
• SMILES:
  CACTVS 3.341: N[CH](CCSC[CH]1O[CH]([CH](O)[CH]1O)n2cnc3c(N)ncnc23)C(O)=O
  OpenEye OEToolkits 1.5.0: c1nc(c2c(n1)n(cn2)C3C(C(C(O3)CSCCC(C(=O)O)N)O)O)N
  CACTVS 3.341: N[C@@H](CCSC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23)C(O)=O
  ACDLabs 10.04: O=C(O)C(N)CCSCC3OC(n2cnc1c(ncnc12)N)C(O)C3O
  OpenEye OEToolkits 1.5.0: c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CSCC[C@@H](C(=O)O)N)O)O)N
• Formula: C14 H20 N6 O5 S
• Name: S-ADENOSYL-L-HOMOCYSTEINE
• ChEMBL: CHEMBL418052
• DrugBank: DB01752
• ZINC: ZINC000004228232
• PDB chain: 3tos Chain G Residue 258

Receptor-Ligand Complex Structure

Structure summary

• PDB: 3tos Crystal Structure of CalS11, Calicheamicin methyltransferase
• Resolution: 1.55 Å
• Binding residue (original residue number in PDB): E75 G77 V78 R79 R82 H83 D107 T108 G111 P113 D166 V167 D189 L190 P195
• Binding residue (residue number reindexed from 1): E70 G72 V73 R74 R77 H78 D102 T103 G106 P108 D161 V162 D184 L185 P190
• Annotation score: 4

Gene Ontology

Molecular Function

• GO:0008171 O-methyltransferase activity

External links

• PDB: RCSB:3tos, PDBe:3tos, PDBj:3tos
• PDBsum: 3tos
• UniProt: Q8KNF1