1P7B	Metal Transport	date	May 01, 2003
title	Crystal Structure Of An Inward Rectifier Potassium Channel
authors	A.Kuo, J.M.Gulbis, J.F.Antcliff, T.Rahman, E.D.Lowe, J.Zimmer, J.Cuthbertson, F.M.Ashcroft, T.Ezaki, D.A.Doyle
compound		source
Molecule: Integral Membrane Channel And Cytosolic Domains Chain: A, B Fragment: Potassium Channel, C-Terminal Domain Related To G Engineered: Yes		Organism_scientific: Burkholderia Pseudomallei Organism_taxid: 28450 Gene: Chromosome 1 Kirbac1.1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (De3) Star Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30a
symmetry	Space Group: I 2 2 2	R_factor 0.295 R_Free 0.329
crystal cell	length a length b length c angle alpha angle beta angle gamma 92.840 105.620 258.630 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.65 Å
ligand	K	enzyme
Gene Ontology	Chain Function Process Component A, B inward rectifier potassium c... voltage-gated ion channel ac...
Primary reference	Crystal structure of the potassium channel KirBac1.1 in the closed state., Kuo A, Gulbis JM, Antcliff JF, Rahman T, Lowe ED, Zimmer J, Cuthbertson J, Ashcroft FM, Ezaki T, Doyle DA, Science 2003 Jun 20;300(5627):1922-6. PMID:12738871

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (89 Kb) [Save to disk] Biological Unit Coordinates (1p7b.pdb1.gz) 162 Kb LPC: Ligand-Protein Contacts for 1P7B CSU: Contacts of Structural Units for 1P7B Likely Quarternary Molecular Structure file(s) for 1P7B Structure Factors (137 Kb) Retrieve 1P7B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1P7B from S2C, [Save to disk] Re-refined 1p7b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1P7B 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 1P7B

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 1P7B, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1p7ba1, region A:152-309 [Jmol] [rasmolscript] [script source]     - Domain d1p7ba2, region A:36-151 [Jmol] [rasmolscript] [script source]     - Domain d1p7bb1, region B:152-309 [Jmol] [rasmolscript] [script source]     - Domain d1p7bb2, region B:36-151 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1p7b] [1p7b_B] [1p7b_A] SWISS-PROT database: [P83698] Belongs to the inward rectifier k(+) channel (irk-c) family according to TCDB. Domain organization of [P83698_BURPS] by SWISSPFAM

Other resources with information on 1P7B

Community annotation for 1P7B at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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