1BK6 Complex (Protein Transport Peptide) date Jul 14, 1998
title Karyopherin Alpha (Yeast) + Sv40 T Antigen Nls
authors E.Conti, M.Uy, L.Leighton, G.Blobel, J.Kuriyan
compound source
Molecule: Karyopherin Alpha
Chain: A, B
Fragment: Armadillo Domain
Synonym: Importin Alpha, Srp1p
Engineered: Yes
Organism_scientific: Saccharomyces Cerevisiae
Organism_common: Baker'S Yeast
Organism_taxid: 4932
Strain: W303
Cell_line: Bl21
Cellular_location: Cytoplasmicnuclear
Gene: Srp1
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21 (De3)
Expression_system_plasmid: Pproex-Htb

Molecule: Large T Antigen
Chain: C, E
Fragment: Nls (Nuclear Localization Signal)
Engineered: Yes
Other_details: Nls Peptide At The Larger (Functional) Binding Site;

Molecule: Large T Antigen
Chain: D, F
Fragment: Nls (Nuclear Localization Signal)
Engineered: Yes
Other_details: Nls Peptide At The Smaller Binding Site

symmetry Space Group: P 21 21 21
R_factor 0.256 R_Free 0.307
length a length b length c angle alpha angle beta angle gamma
161.120 75.750 84.460 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.80 Å
related structures by homologous chain: 1UN0
Primary referenceCrystallographic analysis of the recognition of a nuclear localization signal by the nuclear import factor karyopherin alpha., Conti E, Uy M, Leighton L, Blobel G, Kuriyan J, Cell 1998 Jul 24;94(2):193-204. PMID:9695948
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (134 Kb) [Save to disk]
  • Biological Unit Coordinates (1bk6.pdb1.gz) 66 Kb
  • Biological Unit Coordinates (1bk6.pdb2.gz) 66 Kb
  • CSU: Contacts of Structural Units for 1BK6
  • Likely Quarternary Molecular Structure file(s) for 1BK6
  • Retrieve 1BK6 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1BK6 from S2C, [Save to disk]
  • View 1BK6 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 1BK6
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1BK6, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1bk6a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1bk6b_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1bk6 from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1bk6_B] [1bk6_E] [1bk6_C] [1bk6_D] [1bk6_F] [1bk6] [1bk6_A]
  • SWISS-PROT database: [Q02821]
  • Domain organization of [IMA1_YEAST] by SWISSPFAM
  • Domain found in 1BK6: [ARM ] by SMART
  • Other resources with information on 1BK6
  • Community annotation for 1BK6 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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