1J5K

COMPLEX OF THE KH3 DOMAIN OF HNRNP K WITH A SINGLE_STRANDED 10MER DNA OLIGONUCLEOTIDE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 125 
  • Conformers Submitted: 
  • Selection Criteria: REGULARIZED MEAN STRUCTURE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular basis of sequence-specific single-stranded DNA recognition by KH domains: solution structure of a complex between hnRNP K KH3 and single-stranded DNA.

Braddock, D.T.Baber, J.L.Levens, D.Clore, G.M.

(2002) EMBO J. 21: 3476-3485

  • DOI: 10.1093/emboj/cdf352

  • PubMed Abstract: 
  • To elucidate the basis of sequence-specific single-stranded (ss) DNA recognition by K homology (KH) domains, we have solved the solution structure of a complex between the KH3 domain of the transcriptional regulator heterogeneous nuclear ribonucleopr ...

    To elucidate the basis of sequence-specific single-stranded (ss) DNA recognition by K homology (KH) domains, we have solved the solution structure of a complex between the KH3 domain of the transcriptional regulator heterogeneous nuclear ribonucleoprotein K (hnRNP K) and a 10mer ssDNA. We show that hnRNP K KH3 specifically recognizes a tetrad of sequence 5'd-TCCC. The complex is stabilized by a dense network of methyl-oxygen hydrogen bonds involving the methyl groups of three isoleucine residues and the O2 and N3 atoms of the two central cytosine bases. Comparison with the recently solved structure of a specific protein-ssDNA complex involving the KH3 and KH4 domains of the far upstream element (FUSE) binding protein FBP suggests that the amino acid located five residues N-terminal of the invariant GXXG motif, which is characteristic of all KH domains, plays a crucial role in discrimination of the first two bases of the tetrad.


    Organizational Affiliation

    Laboratory of Chemical Physics, Building 5, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0510, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Heterogeneous nuclear ribonucleoprotein K
A
89Homo sapiensGene Names: HNRNPK (HNRPK)
Find proteins for P61978 (Homo sapiens)
Go to Gene View: HNRNPK
Go to UniProtKB:  P61978
Entity ID: 1
MoleculeChainsLengthOrganism
5'-D(*AP*TP*AP*T*TP*CP*CP*CP*TP*C)-3'B10N/A
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 125 
  • Conformers Submitted: 
  • Selection Criteria: REGULARIZED MEAN STRUCTURE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-10
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance