2ANN

Crystal structure (I) of Nova-1 KH1/KH2 domain tandem with 25 nt RNA hairpin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Protein-RNA and protein-protein recognition by dual KH1/2 domains of the neuronal splicing factor Nova-1.

Teplova, M.Malinina, L.Darnell, J.C.Song, J.Lu, M.Abagyan, R.Musunuru, K.Teplov, A.Burley, S.K.Darnell, R.B.Patel, D.J.

(2011) Structure 19: 930-944

  • DOI: 10.1016/j.str.2011.05.002
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Nova onconeural antigens are neuron-specific RNA-binding proteins implicated in paraneoplastic opsoclonus-myoclonus-ataxia (POMA) syndrome. Nova harbors three K-homology (KH) motifs implicated in alternate splicing regulation of genes involved in inh ...

    Nova onconeural antigens are neuron-specific RNA-binding proteins implicated in paraneoplastic opsoclonus-myoclonus-ataxia (POMA) syndrome. Nova harbors three K-homology (KH) motifs implicated in alternate splicing regulation of genes involved in inhibitory synaptic transmission. We report the crystal structure of the first two KH domains (KH1/2) of Nova-1 bound to an in vitro selected RNA hairpin, containing a UCAG-UCAC high-affinity binding site. Sequence-specific intermolecular contacts in the complex involve KH1 and the second UCAC repeat, with the RNA scaffold buttressed by interactions between repeats. Whereas the canonical RNA-binding surface of KH2 in the above complex engages in protein-protein interactions in the crystalline state, the individual KH2 domain can sequence-specifically target the UCAC RNA element in solution. The observed antiparallel alignment of KH1 and KH2 domains in the crystal structure of the complex generates a scaffold that could facilitate target pre-mRNA looping on Nova binding, thereby potentially explaining Nova's functional role in splicing regulation.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
neuro-oncological ventral antigen 1
A
178Homo sapiensMutation(s): 5 
Gene Names: NOVA1
Find proteins for P51513 (Homo sapiens)
Go to Gene View: NOVA1
Go to UniProtKB:  P51513
Entity ID: 1
MoleculeChainsLengthOrganism
5'-R(*CP*GP*CP*GP*CP*GP*GP*AP*UP*CP*AP*GP*UP*CP*AP*CP*CP*CP*AP*AP*GP*CP*GP*CP*G)-3'B25N/A
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
K
Query on K

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Download CCD File 
B
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.193 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 155.304α = 90.00
b = 37.147β = 94.42
c = 34.825γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PDB_EXTRACTdata extraction
DENZOdata reduction
REFMACrefinement
SBC-Collectdata collection
SCALEPACKdata scaling
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-10-24
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.3: 2011-11-02
    Type: Database references
  • Version 1.4: 2017-10-11
    Type: Refinement description