1U55	Signaling Protein	date	Jul 27, 2004
title	Crystal Structure Of An Oxygen Binding H-Nox Domain Related Guanylate Cyclases (Oxygen Complex)
authors	P.Pellicena, D.S.Karow, E.M.Boon, M.A.Marletta, J.Kuriyan
compound		source
Molecule: Heme-Based Methyl-Accepting Chemotaxis Protein Chain: A, B Fragment: H-Nox Domain Engineered: Yes		Organism_scientific: Thermoanaerobacter Tengcongensis Organism_taxid: 119072 Gene: Tar4 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Tuner Bl21(De3) Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet20b
symmetry	Space Group: C 1 2 1	R_factor 0.227 R_Free 0.257
crystal cell	length a length b length c angle alpha angle beta angle gamma 91.480 126.990 42.572 90.00 94.33 90.00
method	X-Ray Diffraction	resolution	1.77 Å
ligand	CL, HEM, OXY	enzyme
related structures	by homologous chain: 1U56
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of an oxygen-binding heme domain related to soluble guanylate cyclases., Pellicena P, Karow DS, Boon EM, Marletta MA, Kuriyan J, Proc Natl Acad Sci U S A. 2004 Aug 31;101(35):12854-9. Epub 2004 Aug 23. PMID:15326296

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (73 Kb) [Save to disk] Biological Unit Coordinates (1u55.pdb1.gz) 36 Kb Biological Unit Coordinates (1u55.pdb2.gz) 34 Kb LPC: Ligand-Protein Contacts for 1U55 CSU: Contacts of Structural Units for 1U55 Likely Quarternary Molecular Structure file(s) for 1U55 Structure Factors (684 Kb) Retrieve 1U55 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1U55 from S2C, [Save to disk] Re-refined 1u55 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1U55 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 1U55

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 1U55, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1u55a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1u55b_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1u55] [1u55_A] [1u55_B] SWISS-PROT database: [Q8RBX6] Domain organization of [Q8RBX6_THETN] by SWISSPFAM

Other resources with information on 1U55

Community annotation for 1U55 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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