5FI4	Transferase Transferase Inhibitor	date	Dec 22, 2015
title	Discovery Of Imidazo[1,2-A]-Pyridine Inhibitors Of Pan-Pi3 K That Are Efficacious In A Mouse Xenograft Model
authors	R.A.Elling, M.S.Knapp, W.Han, L.M.Daniel, Y.Xy, M.T.Burger, Z.Ni, A J.Lan, T.Williams, J.Verhagen, K.Huh, H.Merritt, J.Chan, S.Kaufma C.F.Voliva, S.Pecchi
compound		source
Molecule: Phosphatidylinositol 4,5-Bisphosphate 3-Kinase Ca Subunit Alpha Isoform; Chain: A Synonym: Ptdins-3-Kinase Subunit Alpha,Phosphatidylinositol Bisphosphate 3-Kinase 110 Kda Catalytic Subunit Alpha,P110a Phosphoinositide-3-Kinase Catalytic Alpha Polypeptide, Serinethreonine Protein Kinase Pik3ca; Ec: 2.7.1.153,2.7.11.1 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Pik3ca Expression_system: Spodoptera Frugiperda Expression_system_taxid: 7108 Expression_system_vector_type: Baculovirus
Molecule: Phosphatidylinositol 3-Kinase Regulatory Subunit Chain: B Fragment: Unp Residues 2-317 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Pik3r1 Expression_system: Spodoptera Frugiperda Expression_system_taxid: 7108 Expression_system_vector_type: Baculovirus
symmetry	Space Group: P 21 21 21	R_factor 0.194 R_Free 0.245
crystal cell	length a length b length c angle alpha angle beta angle gamma 105.200 105.320 134.390 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	5XV, GOL	enzyme	Transferase E.C.2.7.1.153 BRENDA
Gene Ontology	Chain Function Process Component A protein serine/threonine kin... protein kinase activator act...
Primary reference	Discovery of imidazo[1,2-a]-pyridine inhibitors of pan-PI3 kinases that are efficacious in a mouse xenograft model., Han W, Menezes DL, Xu Y, Knapp MS, Elling R, Burger MT, Ni ZJ, Smith A, Lan J, Williams TE, Verhagen J, Huh K, Merritt H, Chan J, Kaufman S, Voliva CF, Pecchi S, Bioorg Med Chem Lett. 2016 Feb 1;26(3):742-6. doi: 10.1016/j.bmcl.2016.01.003., Epub 2016 Jan 5. PMID:26774655

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (312 Kb) [Save to disk] Biological Unit Coordinates (5fi4.pdb1.gz) 305 Kb LPC: Ligand-Protein Contacts for 5FI4 CSU: Contacts of Structural Units for 5FI4 Structure Factors (1458 Kb) Retrieve 5FI4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 5FI4 from S2C, [Save to disk] Re-refined 5fi4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [5fi4] [5fi4_B] [5fi4_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 5FI4: [C2] [PI3K_C2] [PI3K_p85B] [PI3K_rbd] [PI3Ka] [PI3Kc] [SH2 ] by SMART

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