3K1K	Luminescent Protein Immune System	date	Sep 28, 2009
title	Green Fluorescent Protein Bound To Enhancer Nanobody
authors	A.Kirchhofer, J.Helma, K.Schmidthals, C.Frauer, S.Cui, A.Karcher, S.Muyldermans, C.C.Delucci, M.C.Cardoso, H.Leonhardt, K.P.Hopf U.Rothbauer
compound		source
Molecule: Green Fluorescent Protein Chain: A, B Engineered: Yes Mutation: Yes		Organism_scientific: Aequorea Victoria Organism_taxid: 6100 Gene: Gfp Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B834 (Rosetta (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Prset5d
Molecule: Enhancer Chain: C, D Engineered: Yes		Organism_scientific: Camelus Dromedarius Organism_taxid: 9838 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Phen6
symmetry	Space Group: P 42 2 2	R_factor 0.213 R_Free 0.255
crystal cell	length a length b length c angle alpha angle beta angle gamma 160.470 160.470 78.828 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.15 Å
ligand	GYS, MSE	enzyme
Gene Ontology	Chain Function Process Component A, B
Primary reference	Modulation of protein properties in living cells using nanobodies., Kirchhofer A, Helma J, Schmidthals K, Frauer C, Cui S, Karcher A, Pellis M, Muyldermans S, Casas-Delucchi CS, Cardoso MC, Leonhardt H, Hopfner KP, Rothbauer U, Nat Struct Mol Biol. 2010 Jan;17(1):133-8. Epub 2009 Dec 13. PMID:20010839

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (122 Kb) [Save to disk] Biological Unit Coordinates (3k1k.pdb1.gz) 60 Kb Biological Unit Coordinates (3k1k.pdb2.gz) 59 Kb LPC: Ligand-Protein Contacts for 3K1K CSU: Contacts of Structural Units for 3K1K Structure Factors (415 Kb) Retrieve 3K1K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3K1K from S2C, [Save to disk] Re-refined 3k1k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3K1K 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 3K1K

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 3K1K, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3k1k_A] [3k1k_C] [3k1k_D] [3k1k] [3k1k_B] SWISS-PROT database: [P42212] Domain organization of [GFP_AEQVI] by SWISSPFAM Domain found in 3K1K: [IGv ] by SMART

Other resources with information on 3K1K

Community annotation for 3K1K at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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