Biological Assembly 1  

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

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 27.57 kDa 
• Atom Count: 1929 
• Modelled Residue Count: 246 
• Deposited Residue Count: 246 
• Unique protein chains: 1

2GW6

NMR structure of the human tRNA endonuclease SEN15 subunit

• PDB DOI: 10.2210/pdb2GW6/pdb
• BMRB: 6860

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


• Deposited: 2006-05-03 Released: 2006-05-16 
• Deposition Author(s): Song, J., Markley, J.L., Center for Eukaryotic Structural Genomics (CESG)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 

Literature

Three-dimensional structure determined for a subunit of human tRNA splicing endonuclease (Sen15) reveals a novel dimeric fold.

Song, J., Markley, J.L.

(2007) J Mol Biol 366: 155-164

• PubMed: 17166513 
• DOI: 10.1016/j.jmb.2006.11.024
• Primary Citation of Related Structures:  
  2GW6


• PubMed Abstract: 
  

Splicing of eukaryal intron-containing tRNAs requires the action of the heterotetrameric splicing endonuclease, which is composed of two catalytic subunits, Sen34 and Sen2, and two structural subunits, Sen15 and Sen54. Here we report the solution structure of the human tRNA splicing endonuclease subunit HsSen15. To facilitate the structure determination, we removed the disordered 35 N-terminal and 14 C-terminal residues of the full-length protein to produce HsSen15(36-157). The structure of HsSen15(36-157), the first for a subunit of a eukaryal splicing endonuclease, revealed that the protein possesses a novel homodimeric fold. Each monomer consists of three alpha-helices and a mixed antiparallel/parallel beta-sheet, arranged in a topology similar to that of the C-terminal domain of Methanocaldococcus jannaschii endonuclease. The dimeric interface is dominated by a beta-barrel structure, formed by face-to-face packing of two, three-stranded beta-sheets. Each of the beta-sheets results from reciprocal parallel pairing of one beta-strand from one subunit with two other beta-strands from the symmetric subunit. The structural model provides insights into the functional assembly of the human tRNA splicing endonuclease.

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Organizational Affiliation: 

Center for Eukaryotic Structural Genomics, Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706-1544, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
tRNA-splicing endonuclease subunit Sen15	A, B	123	Homo sapiens	Mutation(s): 0  Gene Names: TSEN15, C1orf19, SEN15
UniProt & NIH Common Fund Data Resources
Find proteins for Q8WW01 (Homo sapiens) Explore Q8WW01  Go to UniProtKB:  Q8WW01
PHAROS:  Q8WW01

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: target function 
• OLDERADO: 2GW6 Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-05-03 
• Released Date: 2006-05-16 
Deposition Author(s): Song, J., Markley, J.L., Center for Eukaryotic Structural Genomics (CESG)

Revision History  

• Version 1.0: 2006-05-16
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-09
  Changes: Data collection, Database references, Derived calculations