1NBP	Cytokine	date	Dec 03, 2002
title	Crystal Structure Of Human Interleukin-2 Y31c Covalently Mod C31 With 3-Mercapto-1-(1,3,4,9-Tetrahydro-B-Carbolin-2-Yl)- One
authors	J.Hyde, A.C.Braisted, M.Randal, M.R.Arkin
compound		source
Molecule: Interleukin-2 Chain: A Synonym: Il-2, T-Cell Growth Factor, Tcgf, Aldesleukin Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Il2 Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Prset
symmetry	Space Group: P 21 21 2	R_factor 0.228 R_Free 0.277
crystal cell	length a length b length c angle alpha angle beta angle gamma 49.160 85.350 31.710 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	MHC, SO4	enzyme
related structures	by homologous chain: 1M4A, 1M4C
Gene Ontology	Chain Function Process Component A kinase activator activity positive regulation of inter...
Primary reference	Discovery and characterization of cooperative ligand binding in the adaptive region of interleukin-2., Hyde J, Braisted AC, Randal M, Arkin MR, Biochemistry 2003 Jun 3;42(21):6475-83. PMID:12767230

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (26 Kb) [Save to disk] Biological Unit Coordinates (1nbp.pdb1.gz) 22 Kb LPC: Ligand-Protein Contacts for 1NBP CSU: Contacts of Structural Units for 1NBP Likely Quarternary Molecular Structure file(s) for 1NBP Structure Factors (50 Kb) Retrieve 1NBP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NBP from S2C, [Save to disk] Re-refined 1nbp structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 1NBP

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 1NBP, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nbpa_, region A [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: [1nbp] [1nbp_A] SWISS-PROT database: [P60568] Domain organization of [IL2_HUMAN] by SWISSPFAM Domain found in 1NBP: [IL2 ] by SMART

Other resources with information on 1NBP

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

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