4A55	Transferase	date	Oct 24, 2011
title	Crystal Structure Of P110alpha In Complex With Ish2 Of P85al The Inhibitor Pik-108
authors	W.C.Hon, A.Berndt, R.L.Williams
compound		source
Molecule: Phosphatidylinositol-4,5-Bisphosphate 3-Kinase Ca Subunit Alpha Isoform; Chain: A Synonym: Pi3-Kinase Subunit Alpha, Pi3k-Alpha, Pi3kalpha, P Kinase Subunit Alpha, Phosphatidylinositol-4\,5-Bisphosphat 110 Kda Catalytic Subunit Alpha, Ptdins-3-Kinase Subunit P1 P110alpha, Phosphoinositide-3-Kinase Catalytic Alpha Polype Serinethreonine Protein Kinase Pik3ca; Ec: 2.7.1.153, 2.7.11.1 Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Sf9 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pfastbac
Molecule: Phosphatidylinositol 3-Kinase Regulatory Subunit Chain: B Fragment: Nish2, Residues 322-600 Synonym: Pi3-Kinase Regulatory Subunit Alpha, Pi3k Regulato Alpha, Ptdins-3-Kinase Regulatory Subunit Alpha, Phosphatid 3-Kinase 85 Kda Regulatory Subunit Alpha, Pi3-Kinase Subuni Alpha, Ptdins-3-Kinase Regulatory Subunit P85-Alpha; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108 Expression_system_strain: Sf9 Expression_system_vector_type: Baculovirus Expression_system_plasmid: Pfastbac
symmetry	Space Group: I 2 2 2	R_factor 0.183 R_Free 0.228
crystal cell	length a length b length c angle alpha angle beta angle gamma 136.092 147.184 226.478 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.50 Å
ligand	P08	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	Regulation of lipid binding underlies the activation mechanism of class IA PI3-kinases., Hon WC, Berndt A, Williams RL, Oncogene. 2011 Nov 28. doi: 10.1038/onc.2011.532. PMID:22120714

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (411 Kb) [Save to disk] Biological Unit Coordinates (4a55.pdb1.gz) 402 Kb LPC: Ligand-Protein Contacts for 4A55 CSU: Contacts of Structural Units for 4A55 Structure Factors (414 Kb) Retrieve 4A55 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 4A55 from S2C, [Save to disk] Re-refined 4a55 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 3D motif for 4A55, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [4a55_B] [4a55] [4a55_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 4A55: [C2] [PI3K_C2] [PI3K_p85B] [PI3K_rbd] [PI3Ka] [PI3Kc] [SH2 ] by SMART

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