4A55		date
authors
compound		source
symmetry		R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution
ligand	P08	enzyme
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

View 4A55 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.

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

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

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