1SZ1 Mechanism of CCA-adding enzymes specificity revealed by crystal structures of ternary complexes date
authors Xiong, Y., Steitz, T.A.
compound source
R_Free 0.37962
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 6.21
ligand 1MA, 2MG, 5MC, 5MU, 7MG, H2U, M2G, OMC, OMG, PSU, YG enzyme
A, B

Primary referenceMechanism of transfer RNA maturation by CCA-adding enzyme without using an oligonucleotide template., Xiong Y, Steitz TA, Nature 2004 Aug 5;430(7000):640-5. PMID:15295590
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (254 Kb) [Save to disk]
  • Biological Unit Coordinates (1sz1.pdb1.gz) 244 Kb
  • LPC: Ligand-Protein Contacts for 1SZ1
  • CSU: Contacts of Structural Units for 1SZ1
  • Likely Quarternary Molecular Structure file(s) for 1SZ1
  • Structure Factors (105 Kb)
  • Retrieve 1SZ1 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1SZ1 from S2C, [Save to disk]
  • Re-refined 1sz1 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1SZ1 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 1SZ1
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1SZ1, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1sz1a2, region A:1-142 [Jmol] [rasmolscript] [script source]
        - Domain d1sz1a1, region A:143-257 [Jmol] [rasmolscript] [script source]
        - Domain d1sz1a3, region A:258-437 [Jmol] [rasmolscript] [script source]
        - Domain d1sz1b2, region B:1-142 [Jmol] [rasmolscript] [script source]
        - Domain d1sz1b1, region B:143-257 [Jmol] [rasmolscript] [script source]
        - Domain d1sz1b3, region B:258-437 [Jmol] [rasmolscript] [script source]
  • Fold representative 1sz1 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1sz1_A] [1sz1_E] [1sz1_B] [1sz1_F] [1sz1]
  • SWISS-PROT database: [O28126]
  • Domain organization of [CCA_ARCFU] by SWISSPFAM
  • Other resources with information on 1SZ1
  • Community annotation for 1SZ1 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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