4GKA	Crystal structure of purine nucleoside phosphorylase (W16Y, W94Y, W178Y, H257W) mutant from human complexed with phosphate	date	2012-08-10
authors	Haapalainen, A.M., Ho, M.C., Suarez, J.J., Almo, S.C., Schramm, V.L.
compound		source
symmetry		R_factor R_Free 0.23204
crystal cell	length a length b length c angle alpha angle beta angle gamma
method	X-Ray Diffraction	resolution	2.20
ligand	GOL, PO4	enzyme
Gene Ontology	Chain Function Process Component F, A, D, C, E, B
Primary reference	Catalytic Site Conformations in Human PNP by (19)F-NMR and Crystallography., Suarez J, Haapalainen AM, Cahill SM, Ho MC, Yan F, Almo SC, Schramm VL, Chem Biol. 2013 Feb 21;20(2):212-22. doi: 10.1016/j.chembiol.2013.01.009. PMID:23438750

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (267 Kb) [Save to disk] Biological Unit Coordinates (4gka.pdb1.gz) 132 Kb Biological Unit Coordinates (4gka.pdb2.gz) 132 Kb LPC: Ligand-Protein Contacts for 4GKA CSU: Contacts of Structural Units for 4GKA Structure Factors (1183 Kb) Retrieve 4GKA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 4GKA from S2C, [Save to disk] Re-refined 4gka structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 4GKA 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 4GKA

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 4GKA, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [4gka_C] [4gka_D] [4gka_A] [4gka_E] [4gka_B] [4gka_F] [4gka] SWISS-PROT database: Domain organization of by SWISSPFAM

Other resources with information on 4GKA

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

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