1OIA Ribonucleoprotein date Jun 12, 2003
title U1a Rnp Domain 1-95
authors K.Nagai, P.R.Evans
compound source
Molecule: U1 Small Nuclear Ribonucleoprotein A
Chain: A, B
Fragment: Rnp Domain Residues 1-95
Synonym: U1 Snrnp A Protein
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: I 41 3 2
R_factor 0.192 R_Free 0.242
length a length b length c angle alpha angle beta angle gamma
148.125 148.125 148.125 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.4 Å
note 1OIA supersedes 1NRC
related structures by homologous chain: 1A9N, 1M5V
A, B

Primary referenceCrystal structure of the RNA-binding domain of the U1 small nuclear ribonucleoprotein A., Nagai K, Oubridge C, Jessen TH, Li J, Evans PR, Nature 1990 Dec 6;348(6301):515-20. PMID:2147232
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk]
  • Biological Unit Coordinates (1oia.pdb1.gz) 17 Kb
  • Biological Unit Coordinates (1oia.pdb2.gz) 16 Kb
  • CSU: Contacts of Structural Units for 1OIA
  • Likely Quarternary Molecular Structure file(s) for 1OIA
  • Structure Factors (510 Kb)
  • Retrieve 1OIA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1OIA from S2C, [Save to disk]
  • Re-refined 1oia structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1OIA 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 1OIA
  • 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 1OIA, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1oiaa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1oiab_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1oia 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: [1oia_A] [1oia] [1oia_B]
  • SWISS-PROT database: [P09012]
  • Domain organization of [SNRPA_HUMAN] by SWISSPFAM
  • Domain found in 1OIA: [RRM ] by SMART
  • Other resources with information on 1OIA
  • Community annotation for 1OIA 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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