4X4U Crystal structure of the A.fulgidus CCA-adding enzyme in complex with a human MenBeta minihelix ending in CCACC date
authors Kuhn, C.D., Joshua-Tor, L.
compound source
R_Free 0.2334
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 2.70
ligand APC, GOL, PEG enzyme
Gene AF
F, A, C, E

Primary referenceOn-Enzyme Refolding Permits Small RNA and tRNA Surveillance by the CCA-Adding Enzyme., Kuhn CD, Wilusz JE, Zheng Y, Beal PA, Joshua-Tor L, Cell. 2015 Feb 12;160(4):644-58. doi: 10.1016/j.cell.2015.01.005. Epub 2015 Jan, 29. PMID:25640237
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1009 Kb) [Save to disk]
  • Biological Unit Coordinates (4x4u.pdb1.gz) 270 Kb
  • Biological Unit Coordinates (4x4u.pdb2.gz) 262 Kb
  • Biological Unit Coordinates (4x4u.pdb3.gz) 475 Kb
  • LPC: Ligand-Protein Contacts for 4X4U
  • CSU: Contacts of Structural Units for 4X4U
  • Structure Factors (1668 Kb)
  • Retrieve 4X4U in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4X4U from S2C, [Save to disk]
  • Re-refined 4x4u structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4X4U 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 4X4U
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 4X4U, from MSDmotif at EBI
  • Fold representative 4x4u from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4x4u_D] [4x4u_H] [4x4u_G] [4x4u_F] [4x4u_B] [4x4u_A] [4x4u] [4x4u_E] [4x4u_C]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4X4U
  • Community annotation for 4X4U at PDBWiki (http://pdbwiki.org)

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