4L1B	Crystal Structure of p110alpha complexed with niSH2 of p85alpha	date
authors	Zhang, J., Zhao, Y.L., Chen, Y.Y., Huang, M., Jiang, F.
compound		source
symmetry		R_factor R_Free 0.2742
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution	2.59
ligand	SO4	enzyme
Gene Ontology	Chain Function Process Component A protein serine/threonine kin... protein kinase activator act...
Primary reference	Crystal Structures of PI3Kalpha Complexed with PI103 and Its Derivatives: New Directions for Inhibitors Design., Zhao Y, Zhang X, Chen Y, Lu S, Peng Y, Wang X, Guo C, Zhou A, Zhang J, Luo Y, Shen Q, Ding J, Meng L, Zhang J, ACS Med Chem Lett. 2013 Dec 10;5(2):138-42. doi: 10.1021/ml400378e. eCollection, 2014 Feb 13. PMID:24900786

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (216 Kb) [Save to disk] Biological Unit Coordinates (4l1b.pdb1.gz) 210 Kb LPC: Ligand-Protein Contacts for 4L1B CSU: Contacts of Structural Units for 4L1B Structure Factors (418 Kb) Retrieve 4L1B in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 4L1B from S2C, [Save to disk] Re-refined 4l1b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 4L1B 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.

Visual 3D analysis of 4L1B

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 4L1B, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [4l1b] [4l1b_A] [4l1b_B] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 4L1B: [C2] [PI3K_C2] [PI3K_p85B] [PI3K_rbd] [PI3Ka] [PI3Kc] [SH2 ] by SMART

Other resources with information on 4L1B

Community annotation for 4L1B at PDBWiki (http://pdbwiki.org)

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