1URN Transcription Rna date Jan 04, 1995
title U1a Mutantrna Complex + Glycerol
authors C.Oubridge, N.Ito, P.R.Evans, C.H.Teo, K.Nagai
compound source
Molecule: Rna (5'- R(Apapupcpcpapupupgpcpapcpupcpcpgpg Papu 3');
Chain: P, Q, R
Engineered: Yes
Synthetic: Yes

Molecule: Protein (U1a)
Chain: A, B, C
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Cell_line: Fetal Brain Cdna Library
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21 (De3)
Expression_system_plasmid: Pkn172
Expression_system_gene: U1a (2-98, Y31h, Q36r)
symmetry Space Group: P 65 2 2
R_factor 0.207 R_Free NULL
length a length b length c angle alpha angle beta angle gamma
97.000 97.000 255.300 90.00 90.00 120.00
method X-Ray Diffractionresolution 1.92 Å
ligand CL, GOL enzyme
related structures by homologous chain: 1M5O, 1NU4
A, C, B

Primary referenceCrystal structure at 1.92 A resolution of the RNA-binding domain of the U1A spliceosomal protein complexed with an RNA hairpin., Oubridge C, Ito N, Evans PR, Teo CH, Nagai K, Nature 1994 Dec 1;372(6505):432-8. PMID:7984237
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (84 Kb) [Save to disk]
  • Biological Unit Coordinates (1urn.pdb1.gz) 27 Kb
  • Biological Unit Coordinates (1urn.pdb2.gz) 29 Kb
  • Biological Unit Coordinates (1urn.pdb3.gz) 27 Kb
  • LPC: Ligand-Protein Contacts for 1URN
  • CSU: Contacts of Structural Units for 1URN
  • Likely Quarternary Molecular Structure file(s) for 1URN
  • Structure Factors (388 Kb)
  • Retrieve 1URN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1URN from S2C, [Save to disk]
  • Re-refined 1urn structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1URN 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 1URN
  • 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 1URN, from MSDmotif at EBI
  • Structure summary from SCOR (Structural Classification of RNA)
  • Genome occurence of 1URN's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1urna_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1urnb_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1urnc_, region C [Jmol] [rasmolscript] [script source]
  • Fold representative 1urn from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1urn_A] [1urn_R] [1urn_P] [1urn] [1urn_C] [1urn_B] [1urn_Q]
  • SWISS-PROT database: [P09012]
  • Domain organization of [SNRPA_HUMAN] by SWISSPFAM
  • Domain found in 1URN: [RRM ] by SMART
  • Other resources with information on 1URN
  • Community annotation for 1URN 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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