1PDQ	Structural Protein	date	May 20, 2003
title	Polycomb Chromodomain Complexed With The Histone H3 Tail Con Trimethyllysine 27.
authors	W.Fischle, Y.Wang, S.A.Jacobs, Y.Kim, C.D.Allis, S.Khorasanizadeh
compound		source
Molecule: Polycomb Protein Chain: A Fragment: Residues 15-77 Engineered: Yes		Organism_scientific: Drosophila Melanogaster Organism_common: Fruit Fly Organism_taxid: 7227 Gene: Pc Or Cg7618 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)Plyss Expression_system_vector_type: Pet Expression_system_plasmid: Pet11a
Molecule: Histone H3.3 Chain: B Fragment: Residues 15-32 Synonym: H3.A, H3.B, H3.3q Engineered: Yes Mutation: Yes		Synthetic: Yes Other_details: Synthetic Peptide
symmetry	Space Group: I 21 21 21	R_factor 0.223 R_Free 0.253
crystal cell	length a length b length c angle alpha angle beta angle gamma 32.120 75.810 80.460 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.76 Å
ligand	M3L	enzyme
related structures	by homologous chain: 1PFB
Primary reference	Molecular basis for the discrimination of repressive methyl-lysine marks in histone H3 by Polycomb and HP1 chromodomains., Fischle W, Wang Y, Jacobs SA, Kim Y, Allis CD, Khorasanizadeh S, Genes Dev 2003 Aug 1;17(15):1870-81. PMID:12897054

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (19 Kb) [Save to disk] Biological Unit Coordinates (1pdq.pdb1.gz) 15 Kb LPC: Ligand-Protein Contacts for 1PDQ CSU: Contacts of Structural Units for 1PDQ Likely Quarternary Molecular Structure file(s) for 1PDQ Structure Factors (84 Kb) Retrieve 1PDQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1PDQ from S2C, [Save to disk] Re-refined 1pdq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1PDQ 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 1PDQ

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 1PDQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1pdqa_, region A [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: [1pdq_B] [1pdq] [1pdq_A] SWISS-PROT database: [P26017] Domain organization of [PC_DROME] by SWISSPFAM Domain found in 1PDQ: [CHROMO ] by SMART

Other resources with information on 1PDQ

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

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Images from IMB Jena Image Library of Biological Macromolecules.

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