3PA4	Transferase Transferase Inhibitor	date	Oct 18, 2010
title	X-Ray Crystal Structure Of Compound 2a Bound To Human Chk1 K Domain
authors	T.O.Fischmann
compound		source
Molecule: Serinethreonine-Protein Kinase Chk1 Chain: A Fragment: Unp Residues 2-274 Ec: 2.7.11.1 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Chek1, Chk1 Expression_system: Spodoptera Frugiperda Expression_system_taxid: 7108 Expression_system_strain: Sf9 Expression_system_vector_type: Baculovirus
symmetry	Space Group: P 1 21 1	R_factor 0.225 R_Free 0.250
crystal cell	length a length b length c angle alpha angle beta angle gamma 44.920 65.850 58.270 90.00 94.93 90.00
method	X-Ray Diffraction	resolution	1.59 Å
ligand	C72, GOL BindingDB	enzyme	Transferase E.C.2.7.11.1 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Design, synthesis and SAR of thienopyridines as potent CHK1 inhibitors., Zhao L, Zhang Y, Dai C, Guzi T, Wiswell D, Seghezzi W, Parry D, Fischmann T, Siddiqui MA, Bioorg Med Chem Lett. 2010 Dec 15;20(24):7216-21. Epub 2010 Oct 26. PMID:21074424

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (53 Kb) [Save to disk] Biological Unit Coordinates (3pa4.pdb1.gz) 48 Kb LPC: Ligand-Protein Contacts for 3PA4 CSU: Contacts of Structural Units for 3PA4 Structure Factors (306 Kb) Retrieve 3PA4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3PA4 from S2C, [Save to disk] Re-refined 3pa4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3PA4 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 3PA4

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 3PA4, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1e3pa4, region A:346-482 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3pa4] [3pa4_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3PA4: [S_TKc ] by SMART

Other resources with information on 3PA4

Community annotation for 3PA4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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