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
crystal cell	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 Diffraction	resolution	1.92 Å
ligand	CL, GOL	enzyme
related structures	by homologous chain: 1M5O, 1NU4
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Crystal 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] (83 Kb) [Save to disk] Biological Unit Coordinates (1urn.pdb1.gz) 26 Kb Biological Unit Coordinates (1urn.pdb2.gz) 28 Kb Biological Unit Coordinates (1urn.pdb3.gz) 26 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

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Visual 3D analysis of 1URN

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 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] 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)

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