1O3S	PROTEIN-DNA RECOGNITION AND DNA DEFORMATION REVEALED IN CRYSTAL STRUCTURES OF CAP-DNA COMPLEXES	date
authors	Chen, S., Ebright, R.H., Berman, H.M.
compound		source
symmetry		R_factor R_Free 0.308
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution	3.00
ligand	CMP BindingDB	enzyme
note	1O3S supersedes 1DB9
related structures	by homologous chain: 1O3Q
Gene Ontology	Chain Function Process Component A
Primary reference	Indirect readout of DNA sequence at the primary-kink site in the CAP-DNA complex: alteration of DNA binding specificity through alteration of DNA kinking., Chen S, Gunasekera A, Zhang X, Kunkel TA, Ebright RH, Berman HM, J Mol Biol 2001 Nov 16;314(1):75-82. PMID:11724533

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (48 Kb) [Save to disk] Biological Unit Coordinates (1o3s.pdb1.gz) 84 Kb LPC: Ligand-Protein Contacts for 1O3S CSU: Contacts of Structural Units for 1O3S Likely Quarternary Molecular Structure file(s) for 1O3S Structure Factors (109 Kb) Retrieve 1O3S in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1O3S from S2C, [Save to disk] Re-refined 1o3s structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1O3S 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 1O3S

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 1O3S, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1o3sa1, region A:138-207 [Jmol] [rasmolscript] [script source]     - Domain d1o3sa2, region A:8-137 [Jmol] [rasmolscript] [script source] Fold representative 1o3s 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: [1o3s_B] [1o3s_A] [1o3s] [1o3s_C] SWISS-PROT database: [P0ACJ8] Domain organization of [CRP_ECOLI] by SWISSPFAM Domains found in 1O3S: [HTH_CRP] [cNMP ] by SMART

Other resources with information on 1O3S

Community annotation for 1O3S at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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