1IA8 Transferase date Mar 22, 2001
title The 1.7 A Crystal Structure Of Human Cell Cycle Checkpoint K
authors P.Chen, C.Luo, Y.Deng, K.Ryan, J.Register, S.Margosiak, A.Tempczyk B.Nguyen, P.Myers, K.Lundgren, C.C.Chen Kan, P.M.O'Connor
compound source
Molecule: Chk1 Checkpoint Kinase
Chain: A
Fragment: Chk1kd (Residues 1-289)
Ec: 2.7.1.-
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_cell_line: Sf9
Expression_system_vector_type: Baculovirus
symmetry Space Group: P 1 21 1
R_factor 0.216 R_Free 0.235
length a length b length c angle alpha angle beta angle gamma
45.200 65.700 58.100 90.00 93.90 90.00
method X-Ray Diffractionresolution 1.70 Å
ligand SO4 enzyme Transferase E.C.2.7.1 BRENDA
related structures by homologous chain: 1NVR

Primary referenceThe 1.7 A crystal structure of human cell cycle checkpoint kinase Chk1: implications for Chk1 regulation., Chen P, Luo C, Deng Y, Ryan K, Register J, Margosiak S, Tempczyk-Russell A, Nguyen B, Myers P, Lundgren K, Kan CC, O'Connor PM, Cell 2000 Mar 17;100(6):681-92. PMID:10761933
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (52 Kb) [Save to disk]
  • Biological Unit Coordinates (1ia8.pdb1.gz) 48 Kb
  • LPC: Ligand-Protein Contacts for 1IA8
  • CSU: Contacts of Structural Units for 1IA8
  • Likely Quarternary Molecular Structure file(s) for 1IA8
  • Retrieve 1IA8 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1IA8 from S2C, [Save to disk]
  • View 1IA8 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 1IA8
  • 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 1IA8, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ia8a_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1ia8 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: [1ia8_A] [1ia8]
  • SWISS-PROT database: [O14757]
  • Domain organization of [CHK1_HUMAN] by SWISSPFAM
  • Domain found in 1IA8: [S_TKc ] by SMART
  • Other resources with information on 1IA8
  • Community annotation for 1IA8 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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