Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.95 kDa 
• Atom Count: 912 
• Modelled Residue Count: 113 
• Deposited Residue Count: 121 
• Unique protein chains: 1

1OWX

Solution structure of the C-terminal RRM of human La (La225-334)

• PDB DOI: 10.2210/pdb1OWX/pdb

• Classification: TRANSCRIPTION
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-03-31 Released: 2003-07-29 
• Deposition Author(s): Jacks, A., Babon, J., Kelly, G., Manolaridis, I., Cary, P.D., Curry, S., Conte, M.R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 60 
• Conformers Submitted: 20 
• Selection Criteria: structure with the lowest energy 

Literature

Structure of the C-terminal domain of human La protein reveals a novel RNA recognition motif coupled to a helical nuclear retention element

Jacks, A., Babon, J., Kelly, G., Manolaridis, I., Cary, P.D., Curry, S., Conte, M.R.

(2003) Structure 11: 833-843

• PubMed: 12842046 
• DOI: 10.1016/s0969-2126(03)00121-7
• Primary Citation of Related Structures:  
  1OWX


• PubMed Abstract: 
  

The La protein is an important component of ribonucleoprotein complexes that acts mainly as an RNA chaperone to facilitate correct processing and maturation of RNA polymerase III transcripts, but can also stimulate translation initiation. We report here the structure of the C-terminal domain of human La, which comprises an atypical RNA recognition motif (La225-334) and a long unstructured C-terminal tail. The central beta sheet of La225-334 reveals novel features: the putative RNA binding surface is formed by a five-stranded beta sheet and, strikingly, is largely obscured by a long C-terminal alpha helix that encompasses a recently identified nuclear retention element. Contrary to previous observations, we find that the La protein does not contain a dimerization domain.

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Organizational Affiliation: 

Biophysics Laboratories, Institute of Biomedical and Biomolecular Sciences, University of Portsmouth, St Michael's Building, PO1 2DT, Portsmouth, United.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lupus La protein	A	121	Homo sapiens	Mutation(s): 0  Gene Names: SSB
UniProt & NIH Common Fund Data Resources
Find proteins for P05455 (Homo sapiens) Explore P05455  Go to UniProtKB:  P05455
PHAROS:  P05455

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 60 
• Conformers Submitted: 20 
• Selection Criteria: structure with the lowest energy 
• OLDERADO: 1OWX Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-03-31 
• Released Date: 2003-07-29 
Deposition Author(s): Jacks, A., Babon, J., Kelly, G., Manolaridis, I., Cary, P.D., Curry, S., Conte, M.R.

Revision History  

• Version 1.0: 2003-07-29
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Data collection, Database references, Derived calculations