1ORC	Gene Regulating Protein	date	Oct 30, 1995
title	Cro Repressor Insertion Mutant K56-[Dgevk]
authors	R.A.Albright, M.C.Mossing, B.W.Matthews
compound		source
Molecule: Cro Repressor Insertion Mutant K56-[Dgevk] Chain: A Engineered: Yes Mutation: Yes Other_details: Results In A 71-Residue Stable "Monomer" Mut		Organism_scientific: Enterobacteria Phage Lambda Organism_taxid: 10710 Gene: Cro Mutant K56-[Dgevk] Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_gene: Cro Mutant K56-[Dgevk]
symmetry	Space Group: P 21 21 21	R_factor 0.178 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 34.770 39.170 48.310 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.54 Å
related structures	by homologous chain: 1D1M
Gene Ontology	Chain Function Process Component A
Primary reference	High-resolution structure of an engineered Cro monomer shows changes in conformation relative to the native dimer., Albright RA, Mossing MC, Matthews BW, Biochemistry 1996 Jan 23;35(3):735-42. PMID:8547253

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (15 Kb) [Save to disk] Biological Unit Coordinates (1orc.pdb1.gz) 12 Kb CSU: Contacts of Structural Units for 1ORC Likely Quarternary Molecular Structure file(s) for 1ORC Structure Factors (76 Kb) Retrieve 1ORC in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1ORC from S2C, [Save to disk] Re-refined 1orc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1ORC 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 1ORC

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 1ORC, from MSDmotif at EBI Genome occurence of 1ORC's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1orc__, region [Jmol] [rasmolscript] [script source] 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: [1orc_A] [1orc] SWISS-PROT database: [P03040] Domain organization of [RCRO_LAMBD] by SWISSPFAM

Other resources with information on 1ORC

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

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