3BS9 | pdb_00003bs9

Experimental Data Snapshot

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

(2008) Biochem Biophys Res Commun 367: 813-819

PubMed Abstract:
T-cell-restricted intracellular antigen-1 (TIA-1) regulates alternative pre-mRNA splicing in the nucleus, and mRNA translation in the cytoplasm, by recognizing uridine-rich sequences of RNAs. As a step towards understanding RNA recognition by this regulatory factor, the X-ray structure of the central RNA recognition motif (RRM2) of human TIA-1 is presented at 1.95A resolution. Comparison with structurally homologous RRM-RNA complexes identifies residues at the RNA interfaces that are conserved in TIA-1-RRM2. The versatile capability of RNP motifs to interact with either proteins or RNA is reinforced by symmetry-related protein-protein interactions mediated by the RNP motifs of TIA-1-RRM2. Importantly, the TIA-1-RRM2 structure reveals the locations of mutations responsible for inhibiting nuclear import. In contrast with previous assumptions, the mutated residues are buried within the hydrophobic interior of the domain, where they would be likely to destabilize the RRM fold rather than directly inhibit RNA binding.

Organizational Affiliation

Department of Biochemistry and Biophysics, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA.

Macromolecule Content

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nucleolysin TIA-1 isoform p40	A, B	87	Homo sapiens	Mutation(s): 3 Gene Names: TIA1
UniProt & NIH Common Fund Data Resources
Find proteins for P31483 (Homo sapiens) Explore P31483 Go to UniProtKB: P31483
PHAROS: P31483 GTEx: ENSG00000116001
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P31483
Sequence Annotations Expand
Reference Sequence

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
IOD Query on IOD Download:Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain D [auth A] SDF format, chain G [auth B] SDF format, chain I [auth B] SDF format, chain H [auth B] SDF format, chain F [auth B] SDF format, chain E [auth A] MOL2 format, chain C [auth A] MOL2 format, chain D [auth A] MOL2 format, chain G [auth B] MOL2 format, chain I [auth B] MOL2 format, chain H [auth B] MOL2 format, chain F [auth B] MOL2 format, chain E [auth A] mmCIF format, chain C [auth A] mmCIF format, chain D [auth A] mmCIF format, chain G [auth B] mmCIF format, chain I [auth B] mmCIF format, chain H [auth B] mmCIF format, chain F [auth B] mmCIF format, chain E [auth A]	C [auth A] D [auth A] E [auth A] F [auth B] G [auth B] C [auth A], D [auth A], E [auth A], F [auth B], G [auth B], H [auth B], I [auth B]	IODIDE ION I XMBWDFGMSWQBCA-UHFFFAOYSA-M		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth B] Focus chain G [auth B] Focus chain H [auth B] Focus chain I [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth B] Focus chain G [auth B] Focus chain H [auth B] Focus chain I [auth B]