2BRO	Transferase	date	May 09, 2005
title	Structure-Based Design Of Novel Chk1 Inhibitors: Insights Into Hydrogen Bonding And Protein-Ligand Affinity
authors	N.Foloppe, L.M.Fisher, R.Howes, P.Kierstan, A.Potter, A.G.S.Robertson, A.E.Surgenor
compound		source
Molecule: Serinethreonine-Protein Kinase Chk1 Chain: A Fragment: N-Terminal Kinase Domain, Residues 1-289 Synonym: Chk1 Kinase Ec: 2.7.1.37 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Spodoptera Frugiperda Expression_system_taxid: 7108 Expression_system_cell_line: Sf9 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pfastbac1chk1 1-289 C8h
symmetry	Space Group: P 1 21 1	R_factor 0.198 R_Free 0.279
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.071 65.863 54.473 90.00 101.66 90.00
method	X-Ray Diffraction	resolution	2.2 Å
ligand	DF2 BindingDB	enzyme	Transferase E.C.2.7.1.37 BRENDA
related structures	by homologous chain: 2BRB, 2BRM
Primary reference	Structure-based design of novel Chk1 inhibitors: insights into hydrogen bonding and protein-ligand affinity., Foloppe N, Fisher LM, Howes R, Kierstan P, Potter A, Robertson AG, Surgenor AE, J Med Chem. 2005 Jun 30;48(13):4332-45. PMID:15974586

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (56 Kb) [Save to disk] Biological Unit Coordinates (2bro.pdb1.gz) 50 Kb LPC: Ligand-Protein Contacts for 2BRO CSU: Contacts of Structural Units for 2BRO Likely Quarternary Molecular Structure file(s) for 2BRO Structure Factors (123 Kb) Retrieve 2BRO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2BRO from S2C, [Save to disk] Re-refined 2bro structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2BRO 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 2BRO

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 2BRO, from MSDmotif at EBI Fold representative 2bro from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2bro_A] SWISS-PROT database: [O14757] Domain organization of [CHK1_HUMAN] by SWISSPFAM Domain found in 2BRO: [S_TKc ] by SMART Alignments of the sequence of 2BRO with the sequences similar proteins can be viewed for 2BRO's classification [CHK1_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [CHK1_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 2BRO

Community annotation for 2BRO at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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