1QBK	Nuclear Transport Protein Complex	date	Apr 23, 1999
title	Structure Of The Karyopherin Beta2-Ran Gppnhp Nuclear Transp Complex
authors	Y.M.Chook, G.Blobel
compound		source
Molecule: Karyopherin Beta2 Chain: B Fragment: Full-Length Protein Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Liver Tissue: Liver Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Ran Chain: C Fragment: Full-Length Protein Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Liver Tissue: Liver Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 32 2 1	R_factor 0.267 R_Free 0.315
crystal cell	length a length b length c angle alpha angle beta angle gamma 133.110 133.110 138.410 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	GNP, MG, MSE	enzyme
related structures	by homologous chain: 1RRP
Gene Ontology	Chain Function Process Component B C intracellular transport of v...
Primary reference	Structure of the nuclear transport complex karyopherin-beta2-Ran x GppNHp., Chook YM, Blobel G, Nature 1999 May 20;399(6733):230-7. PMID:10353245

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (179 Kb) [Save to disk] Biological Unit Coordinates (1qbk.pdb1.gz) 171 Kb Biological Unit Coordinates (1qbk.pdb2.gz) 339 Kb LPC: Ligand-Protein Contacts for 1QBK CSU: Contacts of Structural Units for 1QBK Likely Quarternary Molecular Structure file(s) for 1QBK Retrieve 1QBK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QBK from S2C, [Save to disk]

View 1QBK 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 1QBK

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1QBK, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qbkb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1qbkc_, region C [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: [1qbk] [1qbk_C] [1qbk_B] SWISS-PROT database: [P62826] [Q92973] Belongs to the eukaryotic nuclear pore complex (e-npc) family according to TCDB. Belongs to the small nuclear rna exporter (snrna-e) according to TCDB. Domain organization of [RAN_HUMAN] [TNPO1_HUMAN] by SWISSPFAM Domains found in 1QBK: [IBN_N] [RAN ] by SMART

Other resources with information on 1QBK

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

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