3KCC	Transcription	date	Oct 21, 2009
title	Crystal Structure Of D138l Mutant Of Catabolite Gene Activat
authors	W.B.Tao, Z.Q.Gao, J.H.Zhou, Y.H.Dong, S.N.Yu
compound		source
Molecule: Catabolite Gene Activator Chain: A, B Synonym: Camp Receptor Protein, Camp Regulatory Protein Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K-12 Gene: Crp Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30a
symmetry	Space Group: P 1 21 1	R_factor 0.204 R_Free 0.241
crystal cell	length a length b length c angle alpha angle beta angle gamma 45.536 102.222 53.912 90.00 110.93 90.00
method	X-Ray Diffraction	resolution	1.66 Å
ligand	CMP BindingDB	enzyme
note	3KCC is a representative structure
Gene Ontology	Chain Function Process Component A, B
Primary reference	The 1.6A resolution structure of activated D138L mutant of catabolite gene activator protein with two cAMP bound in each monomer., Tao W, Gao Z, Gao Z, Zhou J, Huang Z, Dong Y, Yu S, Int J Biol Macromol. 2011 Apr 1;48(3):459-65. Epub 2011 Jan 19. PMID:21255606

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (77 Kb) [Save to disk] Biological Unit Coordinates (3kcc.pdb1.gz) 71 Kb LPC: Ligand-Protein Contacts for 3KCC CSU: Contacts of Structural Units for 3KCC Structure Factors (409 Kb) Retrieve 3KCC in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3KCC from S2C, [Save to disk] Re-refined 3kcc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3KCC 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 3KCC

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 3KCC, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3kcc_A] [3kcc_B] [3kcc] SWISS-PROT database: [P0ACJ8] Domain organization of [CRP_ECOLI] by SWISSPFAM Domains found in 3KCC: [HTH_CRP] [RNAse_Pc] [cNMP ] by SMART

Other resources with information on 3KCC

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

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