Structure of PDB 1df8 Chain B Binding Site BS01

Receptor Information
>1df8 Chain B (length=120) Species: 1895 (Streptomyces avidinii) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GITGTWYNQLGSTFIVTAGADGALTGTYEAAVGNAESRYVLTGRYDSAPA
TDGSGTALGWTVAWKNNYRNAHSATTWSGQYVGGAEARINTQWLLTSGTT
EANAWKSTLVGHDTFTKVKP
Ligand information
Ligand IDBTN
InChIInChI=1S/C10H16N2O3S/c13-8(14)4-2-1-3-7-9-6(5-16-7)11-10(15)12-9/h6-7,9H,1-5H2,(H,13,14)(H2,11,12,15)/t6-,7-,9-/m0/s1
InChIKeyYBJHBAHKTGYVGT-ZKWXMUAHSA-N
SMILES
SoftwareSMILES
CACTVS 3.385OC(=O)CCCC[CH]1SC[CH]2NC(=O)N[CH]12
CACTVS 3.385OC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12
ACDLabs 12.01O=C1NC2C(SCC2N1)CCCCC(=O)O
OpenEye OEToolkits 1.7.6C1C2C(C(S1)CCCCC(=O)O)NC(=O)N2
OpenEye OEToolkits 1.7.6C1[C@H]2[C@@H]([C@@H](S1)CCCCC(=O)O)NC(=O)N2
FormulaC10 H16 N2 O3 S
NameBIOTIN
ChEMBLCHEMBL857
DrugBankDB00121
ZINCZINC000035024346
PDB chain1df8 Chain B Residue 202 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1df8 Ser45 plays an important role in managing both the equilibrium and transition state energetics of the streptavidin-biotin system.
Resolution1.51 Å
Binding residue
(original residue number in PDB)		N23 S27 Y43 V47 N49 W79 S88 T90 W108 D128
Binding residue
(residue number reindexed from 1)		N8 S12 Y28 V32 N34 W64 S73 T75 W93 D113
Annotation score4
Binding affinityMOAD: Kd=0.2nM
BindingDB: Kd=1.000000nM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology

View graph for
Molecular Function
External links
PDB RCSB:1df8, PDBe:1df8, PDBj:1df8
PDBsum1df8
PubMed10850797
UniProtP22629|SAV_STRAV Streptavidin

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