3IIN	Rna Binding Protein Dna Rna	date	Aug 02, 2009
title	Plasticity Of The Kink Turn Structural Motif
authors	S.V.Lipchock, S.A.Strobel, A.H.Antonioli, J.C.Cochrane
compound		source
Molecule: U1 Small Nuclear Ribonucleoprotein A Chain: A Fragment: Unp Residues 4-98, Rrm 1, U1 Small Nuclear Ribonucleoprotein A Rna Binding Domain; 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 Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid
Molecule: Group I Intron Chain: B Engineered: Yes		Synthetic: Yes
Molecule: Dnarna (5'- R(Apapgpcpcpapcpapcpapgpapcpc)-D(Papgpa)- R(Pcpgpgpcpc)-3'); Chain: C Engineered: Yes Mutation: Yes Other_details: Group I Intron P9-3' Exon		Synthetic: Yes
Molecule: Dnarna (5'-R(Cpa)-D(Pt)-3') Chain: D Engineered: Yes Other_details: 5' Exon		Synthetic: Yes
symmetry	Space Group: P 41 2 2	R_factor 0.290 R_Free 0.323
crystal cell	length a length b length c angle alpha angle beta angle gamma 109.826 109.826 250.218 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	4.18 Å
ligand	A23, GTP, K, MG	enzyme
Gene Ontology	Chain Function Process Component A nucleotide binding nucleic acid binding RNA binding protein binding snRNA binding mRNA splicing, via spliceoso... mRNA processing RNA splicing gene expression nucleus nucleoplasm spliceosomal complex ribonucleoprotein complex
Primary reference	Plasticity of the RNA kink turn structural motif., Antonioli AH, Cochrane JC, Lipchock SV, Strobel SA, RNA. 2010 Feb 9. PMID:20145044

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (116 Kb) [Save to disk] Biological Unit Coordinates (3iin.pdb1.gz) 110 Kb LPC: Ligand-Protein Contacts for 3IIN CSU: Contacts of Structural Units for 3IIN Structure Factors (87 Kb) Retrieve 3IIN in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IIN from S2C, [Save to disk] Re-refined 3iin structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IIN 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3IIN

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 3IIN, from MSDmotif at EBI Fold representative 3iin from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3iin_A] [3iin_B] [3iin_C] [3iin_D] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3IIN with the sequences similar proteins can be viewed for 3IIN's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.

Other resources with information on 3IIN

Community annotation for 3IIN at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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