Structure of PDB 2fsz Chain A Binding Site BS01

Receptor Information

>2fsz Chain A (length=223) Species: 9606 (Homo sapiens)

SPEQLVLTLLEAEPPHVLISRPSAPFTEASMMMSLTKLADKELVHMISWA
KKIPGFVELSLFDQVRLLESSWMEVLMMGLMWRSIDHPGKLIFAPDLVLD
RDEGKSVEGILEIFDMLLATTSRFRELKLQHKEYLCVKAMILLNSSMSRK
LAHLLNAVTDALVWVIAKSGISSQQQSMRLANLLMLLSHVRHASNKGMEH
LLNMNVVPVYDLLLEMLNAHVLR

Ligand information

• Ligand ID: OHT
• InChI: InChI=1S/C26H29NO2/c1-4-25(20-8-6-5-7-9-20)26(21-10-14-23(28)15-11-21)22-12-16-24(17-13-22)29-19-18-27(2)3/h5-17,28H,4,18-19H2,1-3H3/b26-25-
• InChIKey: TXUZVZSFRXZGTL-QPLCGJKRSA-N
• SMILES:
  CACTVS 3.341: CC\C(c1ccccc1)=C(/c2ccc(O)cc2)c3ccc(OCCN(C)C)cc3
  OpenEye OEToolkits 1.5.0: CCC(=C(c1ccc(cc1)O)c2ccc(cc2)OCCN(C)C)c3ccccc3
  OpenEye OEToolkits 1.5.0: CC/C(=C(\c1ccc(cc1)O)/c2ccc(cc2)OCCN(C)C)/c3ccccc3
  ACDLabs 10.04: O(c1ccc(cc1)/C(c2ccc(O)cc2)=C(\c3ccccc3)CC)CCN(C)C
  CACTVS 3.341: CCC(c1ccccc1)=C(c2ccc(O)cc2)c3ccc(OCCN(C)C)cc3
• Formula: C26 H29 N O2
• Name: 4-HYDROXYTAMOXIFEN
• ChEMBL: CHEMBL489
• DrugBank: DB04468
• ZINC: ZINC000000902197
• PDB chain: 2fsz Chain A Residue 101

Receptor-Ligand Complex Structure

Structure summary

• PDB: 2fsz A second binding site for hydroxytamoxifen within the coactivator-binding groove of estrogen receptor beta
• Resolution: 2.2 Å
• Binding residue (original residue number in PDB): M295 L298 T299 L301 A302 D303 E305 M336 G472 L476
• Binding residue (residue number reindexed from 1): M32 L35 T36 L38 A39 D40 E42 M73 G197 L201
• Annotation score: 1
• Binding affinity: BindingDB: IC50=20nM,Ki=0.16nM,EC50=32nM

External links

• PDB: RCSB:2fsz, PDBe:2fsz, PDBj:2fsz
• PDBsum: 2fsz
• PubMed: 16782818
• UniProt: Q92731|ESR2_HUMAN Estrogen receptor beta (Gene Name=ESR2)