2U1A	Nuclear Protein	date	Mar 26, 1997
title	Rna Binding Domain 2 Of Human U1a Protein, Nmr, 20 Structures
authors	J.Lu, K.B.Hall
compound		source
Molecule: U1 Small Nuclear Ribonucleoprotein A Chain: A Fragment: Rna Binding Domain 2, Rbd2 Synonym: U1 Snrnp A Protein Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Pha Expression_system: Escherichia Coli Str. K-12 Substr. Mg1655; Expression_system_taxid: 511145 Expression_system_strain: Mg1655 Expression_system_cellular_location: Cytoplasm Expression_system_vector_type: Bacteria Expression_system_vector: Pav105 Expression_system_plasmid: 1603 Tac2
method	Solution NMR
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	Tertiary structure of RBD2 and backbone dynamics of RBD1 and RBD2 of the human U1A protein determined by NMR spectroscopy., Lu J, Hall KB, Biochemistry 1997 Aug 26;36(34):10393-405. PMID:9265619

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (470 Kb) [Save to disk] CSU: Contacts of Structural Units for 2U1A Original NMR restraints for 2U1A from PDB Retrieve 2U1A in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2U1A from S2C, [Save to disk]

View 2U1A 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 2U1A

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 2U1A, from MSDmotif at EBI Genome occurence of 2U1A's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2u1a__, region [Jmol] [rasmolscript] [script source] Fold representative 2u1a 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: [2u1a_A] SWISS-PROT database: [P09012] Domain organization of [SNRPA_HUMAN] by SWISSPFAM Domain found in 2U1A: [RRM ] by SMART Alignments of the sequence of 2U1A with the sequences similar proteins can be viewed for 2U1A's classification [SNRPA_HUMAN] 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 [SNRPA_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 2U1A

Community annotation for 2U1A at PDBWiki (http://pdbwiki.org) NMR Ensemble (OLDERADO: core, domain and representative structure database) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 2U1A from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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