1F45	Cytokine Cytokine	date	Jun 07, 2000
title	Human Interleukin-12
authors	C.Yoon, S.C.Johnston, J.Tang, J.F.Tobin, W.S.Somers
compound		source
Molecule: Interleukin-12 Beta Chain Chain: A Fragment: Residues 23-328 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Cricetulus Griseus Expression_system_common: Chinese Hamster Expression_system_taxid: 10029 Expression_system_cell_line: Cho Expression_system_vector_type: Plasmid Expression_system_plasmid: Pemc
Molecule: Interleukin-12 Alpha Chain Chain: B Fragment: Residues 23-219 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Cricetulus Griseus Expression_system_common: Chinese Hamster Expression_system_taxid: 10029 Expression_system_cell_line: Cho Expression_system_vector_type: Plasmid Expression_system_plasmid: Pemc
symmetry	Space Group: C 2 2 21	R_factor 0.241 R_Free 0.284
crystal cell	length a length b length c angle alpha angle beta angle gamma 112.900 154.200 101.700 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	MAN, NAG	enzyme
related structures	by homologous chain: 1F42
Gene Ontology	Chain Function Process Component A positive regulation of inter... positive regulation of inter... B
Primary reference	Charged residues dominate a unique interlocking topography in the heterodimeric cytokine interleukin-12., Yoon C, Johnston SC, Tang J, Stahl M, Tobin JF, Somers WS, EMBO J 2000 Jul 17;19(14):3530-41. PMID:10899108

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (75 Kb) [Save to disk] Biological Unit Coordinates (1f45.pdb1.gz) 68 Kb LPC: Ligand-Protein Contacts for 1F45 CSU: Contacts of Structural Units for 1F45 Likely Quarternary Molecular Structure file(s) for 1F45 Retrieve 1F45 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1F45 from S2C, [Save to disk]

View 1F45 in 3D

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Visual 3D analysis of 1F45

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1F45, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1f45a1, region A:1-87 [Jmol] [rasmolscript] [script source]     - Domain d1f45a3, region A:212-306 [Jmol] [rasmolscript] [script source]     - Domain d1f45a2, region A:88-211 [Jmol] [rasmolscript] [script source]     - Domain d1f45b_, region B [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: [1f45] [1f45_B] [1f45_A] SWISS-PROT database: [P29459] [P29460] Domain organization of [IL12A_HUMAN] [IL12B_HUMAN] by SWISSPFAM Domain found in 1F45: [IGc2 ] by SMART

Other resources with information on 1F45

Community annotation for 1F45 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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