3T4Q	Hormone Receptor	date	Jul 26, 2011
title	Arabidopsis Histidine Kinase 4 Sensor Domain In Complex With Zeatin Riboside (Hydrolysed)
authors	M.Hothorn
compound		source
Molecule: Histidine Kinase 4 Chain: A, B Fragment: Unp Residues 149-418 Synonym: Arabidopsis Histidine Kinase 4, Athk4, Cytokinin R Cytokinin Response 1, Atcre1, Cytokinin Receptor Cre1, Phos Phosphatase Ahk4, Protein Authentic His-Kinase 4, Protein R Wol 1, Protein Wooden Leg; Ec: 2.7.13.3, 3.1.3.16 Engineered: Yes		Organism_scientific: Arabidopsis Thaliana Organism_common: Mouse-Ear Cress,Thale-Cress Organism_taxid: 3702 Gene: Ahk4, At2g01830, Cre1, Raw1, T23k3.2, Wol Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Origami (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmh-Hssumo
symmetry	Space Group: P 32 2 1	R_factor 0.178 R_Free 0.237
crystal cell	length a length b length c angle alpha angle beta angle gamma 59.900 59.900 297.440 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	MLI, ZEA BindingDB	enzyme	Transferase E.C.2.7.13.3 BRENDA
Primary reference	Structural basis for cytokinin recognition by Arabidopsis thaliana histidine kinase 4., Hothorn M, Dabi T, Chory J, Nat Chem Biol. 2011 Oct 2;7(11):766-8. doi: 10.1038/nchembio.667. PMID:21964459

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (186 Kb) [Save to disk] Biological Unit Coordinates (3t4q.pdb1.gz) 179 Kb LPC: Ligand-Protein Contacts for 3T4Q CSU: Contacts of Structural Units for 3T4Q Structure Factors (224 Kb) Retrieve 3T4Q in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3T4Q from S2C, [Save to disk] Re-refined 3t4q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3T4Q 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 3T4Q

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 3T4Q, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3t4q_B] [3t4q] [3t4q_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3T4Q: [CHASE ] by SMART

Other resources with information on 3T4Q

Community annotation for 3T4Q at PDBWiki (http://pdbwiki.org)

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