5O3J image
Entry Detail
PDB ID:
5O3J
Title:
Crystal structure of TIA-1 RRM2 in complex with RNA
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2017-05-24
Release Date:
2017-07-05
Method Details:
Experimental Method:
Resolution:
2.97 Å
R-Value Free:
0.31
R-Value Work:
0.25
R-Value Observed:
0.25
Space Group:
P 65
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Nucleolysin TIA-1 isoform p40
Chain IDs:A
Chain Length:80
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polyribonucleotide
Description:RNA (5'-R(P*UP*UP*C)-3')
Chain IDs:B
Chain Length:3
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Segmental, Domain-Selective Perdeuteration and Small-Angle Neutron Scattering for Structural Analysis of Multi-Domain Proteins.
Angew. Chem. Int. Ed. Engl. 56 9322 9325 (2017)
PMID: 28636238 DOI: 10.1002/anie.201702904

Abstact

Multi-domain proteins play critical roles in fine-tuning essential processes in cellular signaling and gene regulation. Typically, multiple globular domains that are connected by flexible linkers undergo dynamic rearrangements upon binding to protein, DNA or RNA ligands. RNA binding proteins (RBPs) represent an important class of multi-domain proteins, which regulate gene expression by recognizing linear or structured RNA sequence motifs. Here, we employ segmental perdeuteration of the three RNA recognition motif (RRM) domains in the RBP TIA-1 using Sortase A mediated protein ligation. We show that domain-selective perdeuteration combined with contrast-matched small-angle neutron scattering (SANS), SAXS and computational modeling provides valuable information to precisely define relative domain arrangements. The approach is generally applicable to study conformational arrangements of individual domains in multi-domain proteins and changes induced by ligand binding.

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