Structure of PDB 1a52 Chain A Binding Site BS01

Receptor Information
>1a52 Chain A (length=239) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
LALSLTADQMVSALLDAEPPILYSEYDPTRPFSEASMMGLLTNLADRELV
HMINWAKRVPGFVDLTLHDQVHLLECAWLEILMIGLVWRSMEHPGKLLFA
PNLLLDRNQGKCVEGMVEIFDMLLATSSRFRMMNLQGEEFVCLKSIILLN
SGVYTFLSSTLKSLEEKDHIHRVLDKITDTLIHLMAKAGLTLQQQHERLA
QLLLILSHIRHMSNKGMEHLYSMKCKNVVPLYDLLLEML
Ligand information
Ligand IDEST
InChIInChI=1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17+,18+/m1/s1
InChIKeyVOXZDWNPVJITMN-ZBRFXRBCSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CC12CCC3c4ccc(cc4CCC3C1CCC2O)O
OpenEye OEToolkits 1.5.0C[C@]12CC[C@@H]3c4ccc(cc4CC[C@H]3[C@@H]1CC[C@@H]2O)O
CACTVS 3.341C[C]12CC[CH]3[CH](CCc4cc(O)ccc34)[CH]1CC[CH]2O
CACTVS 3.341C[C@]12CC[C@H]3[C@@H](CCc4cc(O)ccc34)[C@@H]1CC[C@@H]2O
ACDLabs 10.04Oc1cc4c(cc1)C3CCC2(C(CCC2O)C3CC4)C
FormulaC18 H24 O2
NameESTRADIOL
ChEMBLCHEMBL135
DrugBankDB00783
ZINCZINC000013520815
PDB chain1a52 Chain A Residue 1 [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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PDB1a52 Crystallographic comparison of the estrogen and progesterone receptor's ligand binding domains.
Resolution2.8 Å
Binding residue
(original residue number in PDB)
E353 L387 M388 L391 F404 H524 L525
Binding residue
(residue number reindexed from 1)
E48 L82 M83 L86 F99 H219 L220
Annotation score4
Binding affinityPDBbind-CN: -logKd/Ki=9.86,Ki=0.138nM
BindingDB: IC50=1.3nM,Kd=0.2nM,EC50=0.75nM,Ki=0.21nM
Enzymatic activity
Enzyme Commision number ?
External links
PDB RCSB:1a52, PDBe:1a52, PDBj:1a52
PDBsum1a52
PubMed9600906
UniProtP03372|ESR1_HUMAN Estrogen receptor (Gene Name=ESR1)

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