1NKZ	Membrane Protein	date	Jan 06, 2003
title	Crystal Structure Of Lh2 B800-850 From Rps. Acidophila At 2. Resolution
authors	M.Z.Papiz, S.M.Prince, T.Howard, R.J.Cogdell, N.W.Isaacs
compound		source
Molecule: Light-Harvesting Protein B-800850, Alpha Chain Chain: A, C, E Synonym: Antenna Pigment Protein, Alpha Chain		Organism_scientific: Rhodoblastus Acidophilus Organism_taxid: 1074 Strain: 10050 Other_details: Cell Membrane
Molecule: Light-Harvesting Protein B-800850, Beta Chain Chain: B, D, F Synonym: Antenna Pigment Protein, Beta Chain		Organism_scientific: Rhodoblastus Acidophilus Organism_taxid: 1074 Strain: 10050
symmetry	Space Group: H 3 2	R_factor 0.169 R_Free 0.190
crystal cell	length a length b length c angle alpha angle beta angle gamma 117.052 117.052 298.438 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	BCL, BEN, BOG, CXM, RG1	enzyme
note	1NKZ is a representative structure
related structures	by homologous chain: 1KZU
Gene Ontology	Chain Function Process Component A, C, E electron transporter, transf... F, D, B electron transporter, transf...
Primary reference	The structure and thermal motion of the B800-850 LH2 complex from Rps.acidophila at 2.0A resolution and 100K: new structural features and functionally relevant motions., Papiz MZ, Prince SM, Howard T, Cogdell RJ, Isaacs NW, J Mol Biol. 2003 Mar 7;326(5):1523-38. PMID:12595263

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (87 Kb) [Save to disk] Biological Unit Coordinates (1nkz.pdb1.gz) 201 Kb Biological Unit Coordinates (1nkz.pdb2.gz) 401 Kb LPC: Ligand-Protein Contacts for 1NKZ CSU: Contacts of Structural Units for 1NKZ Likely Quarternary Molecular Structure file(s) for 1NKZ Structure Factors (396 Kb) Retrieve 1NKZ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NKZ from S2C, [Save to disk] Re-refined 1nkz structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NKZ 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 1NKZ

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 1NKZ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nkza_, region A [Jmol] [rasmolscript] [script source]     - Domain d1nkzb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1nkzc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1nkzd_, region D [Jmol] [rasmolscript] [script source]     - Domain d1nkze_, region E [Jmol] [rasmolscript] [script source]     - Domain d1nkzf_, region F [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: [1nkz_D] [1nkz_F] [1nkz] [1nkz_A] [1nkz_E] [1nkz_B] [1nkz_C] SWISS-PROT database: [P26789] [P26790] Domain organization of [LHA4_RHOAC] [LHB5_RHOAC] by SWISSPFAM

Other resources with information on 1NKZ

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

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