1Q8T Transferase Transferase Inhibitor date Aug 22, 2003
title The Catalytic Subunit Of Camp-Dependent Protein Kinase (Pka) In Complex With Rho-Kinase Inhibitor Y-27632
authors C.Breitenlechner, M.Gassel, H.Hidaka, V.Kinzel, R.Huber, R.A.Engh, D.Bossemeyer
compound source
Molecule: Camp-Dependent Protein Kinase, Alpha-Catalytic Subunit;
Chain: A
Fragment: Catalytic Subunit
Synonym: Pka C-Alpha, Protein Kinase A
Engineered: Yes
Organism_scientific: Bos Taurus
Organism_common: Cattle
Organism_taxid: 9913
Gene: Prkaca
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21de3
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pt7-7

Molecule: Camp-Dependent Protein Kinase Inhibitor, Alpha Form;
Chain: B
Fragment: Residues 5-24
Synonym: Pki-Alpha, Camp-Dependent Protein Kinase Inhibitor, Musclebrain Isoform;
Engineered: Yes

Synthetic: Yes
Other_details: The Peptide Was Chemically Synthesized.
symmetry Space Group: P 21 21 21
R_factor 0.176 R_Free 0.229
length a length b length c angle alpha angle beta angle gamma
74.027 76.606 80.700 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.00 Å
ligand SEP, TPO, Y27 BindingDB enzyme Transferase E.C. BRENDA
related structures by homologous chain: 1APM, 1U7E


Primary referenceProtein kinase A in complex with Rho-kinase inhibitors Y-27632, Fasudil, and H-1152P: structural basis of selectivity., Breitenlechner C, Gassel M, Hidaka H, Kinzel V, Huber R, Engh RA, Bossemeyer D, Structure (Camb) 2003 Dec;11(12):1595-607. PMID:14656443
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (71 Kb) [Save to disk]
  • Biological Unit Coordinates (1q8t.pdb1.gz) 66 Kb
  • LPC: Ligand-Protein Contacts for 1Q8T
  • CSU: Contacts of Structural Units for 1Q8T
  • Likely Quarternary Molecular Structure file(s) for 1Q8T
  • Structure Factors (226 Kb)
  • Retrieve 1Q8T in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1Q8T from S2C, [Save to disk]
  • Re-refined 1q8t structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1Q8T 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 1Q8T
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1Q8T, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1q8ta_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1q8t from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1q8t_B] [1q8t] [1q8t_A]
  • SWISS-PROT database: [P61925] [P00517]
  • Domain organization of [IPKA_HUMAN] [KAPCA_BOVIN] by SWISSPFAM
  • Domains found in 1Q8T: [S_TK_X] [S_TKc ] by SMART
  • Other resources with information on 1Q8T
  • Community annotation for 1Q8T 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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