3CK4	Protein Binding	date	Mar 14, 2008
title	A Heterospecific Leucine Zipper Tetramer
authors	J.Liu
compound		source
Molecule: Gcn4 Leucine Zipper Chain: A, D, E, H, I, L Fragment: Unp Residues 251-281 Engineered: Yes		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Gene: Gcn4, Aas3, Arg9 Expression_system: Escherichia Coli Expression_system_strain: Bl21 Expression_system_vector_type: T7 Expression Vector Expression_system_plasmid: Pae4
Molecule: Gcn4 Leucine Zipper Chain: B, C, F, G, J, K Fragment: Unp Residues 251-281 Engineered: Yes		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Gene: Gcn4, Aas3, Arg9 Expression_system: Escherichia Coli Expression_system_strain: Bl21 Expression_system_vector_type: T7 Expression Vector Expression_system_plasmid: Pae4
symmetry	Space Group: P 1	R_factor 0.171 R_Free 0.221
crystal cell	length a length b length c angle alpha angle beta angle gamma 48.846 49.107 51.917 115.77 94.21 109.62
method	X-Ray Diffraction	resolution	1.70 Å
ligand	MG	enzyme
Primary reference	A heterospecific leucine zipper tetramer., Deng Y, Liu J, Zheng Q, Li Q, Kallenbach NR, Lu M, Chem Biol. 2008 Sep 22;15(9):908-19. PMID:18804028

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (142 Kb) [Save to disk] Biological Unit Coordinates (3ck4.pdb1.gz) 46 Kb Biological Unit Coordinates (3ck4.pdb2.gz) 46 Kb Biological Unit Coordinates (3ck4.pdb3.gz) 46 Kb LPC: Ligand-Protein Contacts for 3CK4 CSU: Contacts of Structural Units for 3CK4 Likely Quarternary Molecular Structure file(s) for 3CK4 Structure Factors (298 Kb) Retrieve 3CK4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3CK4 from S2C, [Save to disk] Re-refined 3ck4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3CK4 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 3CK4

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 3CK4, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ck4] [3ck4_E] [3ck4_J] [3ck4_F] [3ck4_C] [3ck4_K] [3ck4_G] [3ck4_L] [3ck4_H] [3ck4_D] [3ck4_A] [3ck4_B] [3ck4_I] SWISS-PROT database: [P03069] Domain organization of [GCN4_YEAST] by SWISSPFAM

Other resources with information on 3CK4

Community annotation for 3CK4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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