3K3K	Hormone Receptor, Signaling Protein	date	Oct 02, 2009
title	Crystal Structure Of Dimeric Abscisic Acid (Aba) Receptor Py Resistance 1 (Pyr1) With Aba-Bound Closed-Lid And Aba-Free Subunits
authors	A.S.Arvai, K.Hitomi, E.D.Getzoff
compound		source
Molecule: Abscisic Acid Receptor Pyr1 Chain: A, B Synonym: Pyrabactin Resistance 1, Gene Product At4g17870, R Component Of Aba Receptor 11, Rcar11, Gene Product T6k21.50 Engineered: Yes		Organism_scientific: Arabidopsis Thaliana Organism_common: Mouse-Ear Cress Organism_taxid: 3702 Gene: At4g17870, Pyr1, T6k21.50 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28
symmetry	Space Group: P 1 2 1	R_factor 0.189 R_Free 0.237
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.208 61.407 82.844 90.00 98.97 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	A8S	enzyme
Gene Ontology	Chain Function Process Component A, B protein phosphatase inhibito...
Primary reference	Structural mechanism of abscisic acid binding and signaling by dimeric PYR1., Nishimura N, Hitomi K, Arvai AS, Rambo RP, Hitomi C, Cutler SR, Schroeder JI, Getzoff ED, Science. 2009 Dec 4;326(5958):1373-9. Epub 2009 Oct 22. PMID:19933100

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (74 Kb) [Save to disk] Biological Unit Coordinates (3k3k.pdb1.gz) 69 Kb Biological Unit Coordinates (3k3k.pdb2.gz) 137 Kb LPC: Ligand-Protein Contacts for 3K3K CSU: Contacts of Structural Units for 3K3K Structure Factors (746 Kb) Retrieve 3K3K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3K3K from S2C, [Save to disk] Re-refined 3k3k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3K3K 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 3K3K

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 3K3K, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3k3k_B] [3k3k] [3k3k_A] SWISS-PROT database: [O49686] Domain organization of [PYR1_ARATH] by SWISSPFAM

Other resources with information on 3K3K

Community annotation for 3K3K at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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