1L2I	Transcription Receptor Coactivator	date	Feb 21, 2002
title	Human Estrogen Receptor Alpha Ligand-Binding Domain In Compl (R,R)-5,11-Cis-Diethyl-5,6,11,12-Tetrahydrochrysene-2,8-Dio Glucocorticoid Receptor Interacting Protein 1 Nr Box II Pep
authors	A.K.Shiau, D.Barstad, J.T.Radek, M.J.Meyers, K.W.Nettles, B.S.Katzenellenbogen, J.A.Katzenellenbogen, D.A.Agard, G.L.Gre
compound		source
Molecule: Estrogen Receptor Chain: A, B Fragment: Ligand-Binding Domain (Residues 297-554) Synonym: Er-Alpha, Oestrogen Receptor Alpha Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet23d
Molecule: Glucocorticoid Receptor-Interacting Protein 1 Chain: C, D Fragment: Nr Box II (Residues 686-698) Synonym: Nuclear Receptor Coactivator 2, Grip1 Engineered: Yes		Synthetic: Yes Other_details: The Peptide Was Chemically Synthesized. This Occurs Naturally In Mice.
symmetry	Space Group: P 1 21 1	R_factor 0.203 R_Free 0.243
crystal cell	length a length b length c angle alpha angle beta angle gamma 54.545 82.600 59.040 90.00 111.53 90.00
method	X-Ray Diffraction	resolution	1.95 Å
ligand	CCS, CL, ETC	enzyme
related structures	by homologous chain: 2BJ4, 3ERT
Primary reference	Structural characterization of a subtype-selective ligand reveals a novel mode of estrogen receptor antagonism., Shiau AK, Barstad D, Radek JT, Meyers MJ, Nettles KW, Katzenellenbogen BS, Katzenellenbogen JA, Agard DA, Greene GL, Nat Struct Biol 2002 May;9(5):359-64. PMID:11953755

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (87 Kb) [Save to disk] Biological Unit Coordinates (1l2i.pdb1.gz) 81 Kb Biological Unit Coordinates (1l2i.pdb2.gz) 81 Kb LPC: Ligand-Protein Contacts for 1L2I CSU: Contacts of Structural Units for 1L2I Likely Quarternary Molecular Structure file(s) for 1L2I Structure Factors (393 Kb) Retrieve 1L2I in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1L2I from S2C, [Save to disk] Re-refined 1l2i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1L2I in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1L2I

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1L2I, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1l2ia_, region A [Jmol] [rasmolscript] [script source]     - Domain d1l2ib_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1l2i_B] [1l2i_C] [1l2i_A] [1l2i_D] [1l2i] SWISS-PROT database: [P03372] [Q61026] Domain organization of [ESR1_HUMAN] [NCOA2_MOUSE] by SWISSPFAM Domain found in 1L2I: [HOLI ] by SMART

Other resources with information on 1L2I

Community annotation for 1L2I at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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