Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 12.30 kDa 
• Atom Count: 855 
• Modelled Residue Count: 101 
• Deposited Residue Count: 101 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

2MB0

Solution structure of hnRNP G RRM in complex with the RNA 5'-AUCAAA-3'

• DOI: 10.2210/pdb2MB0/pdb
• BMRB: 19382
• NDB: 2MB0

• Classification: SPLICING/RNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-07-22 Released: 2014-04-09 
• Deposition Author(s): Moursy, A., Allain, F.H.-T., Clery, A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Characterization of the RNA recognition mode of hnRNP G extends its role in SMN2 splicing regulation.

Moursy, A., Allain, F.H., Clery, A.

(2014) Nucleic Acids Res 42: 6659-6672

• PubMed: 24692659 
• DOI: 10.1093/nar/gku244
• Primary Citation of Related Structures:  
  2MB0


• PubMed Abstract: 
  

Regulation of SMN2 exon 7 splicing is crucial for the production of active SMN protein and the survival of Spinal Muscular Atrophy (SMA) patients. One of the most efficient activators of exon 7 inclusion is hnRNP G, which is recruited to the exon by Tra2-β1. We report that in addition to the C-terminal region of hnRNP G, the RNA Recognition Motif (RRM) and the middle part of the protein containing the Arg-Gly-Gly (RGG) box are important for this function. To better understand the mode of action of hnRNP G in this context we determined the structure of its RRM bound to an SMN2 derived RNA. The RRM interacts with a 5'-AAN-3' motif and specifically recognizes the two consecutive adenines. By testing the effect of mutations in hnRNP G RRM and in its putative binding sites on the splicing of SMN2 exon 7, we show that it specifically binds to exon 7. This interaction is required for hnRNP G splicing activity and we propose its recruitment to a polyA tract located upstream of the Tra2-β1 binding site. Finally, our data suggest that hnRNP G plays a major role in the recruitment of the Tra2-β1/hnRNP G/SRSF9 trimeric complex to SMN2 exon 7.

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Organizational Affiliation: 

Institute for Molecular Biology and Biophysics, Swiss Federal Institute of Technology (ETH), 8093 Zürich, Switzerland [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RNA-binding motif protein, X chromosome	B	95	Homo sapiens	Mutation(s): 0  Gene Names: RBMX, HNRPG, RBMXP1
Find proteins for P38159 (Homo sapiens) Explore P38159  Go to UniProtKB:  P38159
NIH Common Fund Data Resources
PHAROS:  P38159 GTEx:  ENSG00000147274

Entity ID: 2
Molecule	Chains	Length	Organism	Image
RNA_(5'-R(*AP*UP*CP*AP*AP*A)-3')	A	6	N/A

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• OLDERADO: 2MB0 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-07-22 
• Released Date: 2014-04-09 
Deposition Author(s): Moursy, A., Allain, F.H.-T., Clery, A.

Revision History  

• Version 1.0: 2014-04-09
  Type: Initial release
  
• Version 1.1: 2014-05-14
  Changes: Database references
• Version 1.2: 2014-06-25
  Changes: Database references