1ZZN Structural Protein Rna date Jun 14, 2005
title Crystal Structure Of A Group I Introntwo Exon Complex That All Catalytic Metal Ion Ligands.
authors M.R.Stahley, S.A.Strobel
compound source
Molecule: 197-Mer
Chain: B
Engineered: Yes
Other_details: Group I Intron
Synthetic: Yes
Other_details: Rna Was Is Transcribed By T7 Rna Polymerase. From Azoarcus Group I Intron;

Molecule: 5'-R(Apapgpcpcpapcpapcpapapapcpcpa Gpgpcpc)-3';
Chain: C
Engineered: Yes
Other_details: Group I Intron, 3'-Exon

Synthetic: Yes
Other_details: Solid Phase Sythesis. Sequence From Azoarcus And Exon Sequence.;

Molecule: 5'-R(Cpap(5mu))-3'
Chain: D
Engineered: Yes
Other_details: 5'-Exon, U-1deoxy5mu

Synthetic: Yes
Other_details: Solid Phase Synthesis. Sequence From Azoarcu Intron 5'-Exon Sequence.;

Molecule: U1 Small Nuclear Ribonucleoprotein A Rna Binding
Chain: A
Fragment: Rrm 1
Synonym: U1 Snrnp Protein A, U1a Protein, U1-A
Engineered: Yes
Mutation: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Snrpa
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet11
symmetry Space Group: P 41 2 2
R_factor 0.269 R_Free 0.307
length a length b length c angle alpha angle beta angle gamma
108.466 108.466 246.400 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.37 Å
ligand 5MU, A23, GTP, K, MG enzyme

Primary referenceStructural evidence for a two-metal-ion mechanism of group I intron splicing., Stahley MR, Strobel SA, Science 2005 Sep 2;309(5740):1587-90. PMID:16141079
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (120 Kb) [Save to disk]
  • Biological Unit Coordinates (1zzn.pdb1.gz) 113 Kb
  • LPC: Ligand-Protein Contacts for 1ZZN
  • CSU: Contacts of Structural Units for 1ZZN
  • Likely Quarternary Molecular Structure file(s) for 1ZZN
  • Structure Factors (172 Kb)
  • Retrieve 1ZZN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1ZZN from S2C, [Save to disk]
  • Re-refined 1zzn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1ZZN 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 1ZZN
  • 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 1ZZN, from MSDmotif at EBI
  • Fold representative 1zzn from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1zzn_C] [1zzn_A] [1zzn] [1zzn_B] [1zzn_D]
  • SWISS-PROT database: [P09012]
  • Domain organization of [SNRPA_HUMAN] by SWISSPFAM
  • Domain found in 1ZZN: [RRM ] by SMART
  • Other resources with information on 1ZZN
  • Community annotation for 1ZZN 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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