interface graph thumbnail
legend  pdf

structure nameTHE CRYSTAL STRUCTURE OF QSRR-DNA COMPLEX
(Transcriptional regulator QsrR)
referenceZhang et al. Proc.Natl.Acad.Sci.USA 110 5010 2013
sourceStaphylococcus aureus
experimentX-ray (resolution=2.30, R-factor=0.208)
structural superfamily"Winged helix" DNA-binding domain;
sequence familyHxlRlike helixturnhelix;
multimeric complexes4hqe_AB
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureFTPRAL

Estimated binding specificities ?

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# IC=4.125 IC/col=0.825 n_of_columns=5 specificity:   
A |   0  96  12  36   0
C |   0   0  24  12  96
G |   0   0  24  24   0
T |  96   0  36  24   0
scan!

Dendrogram of similar interfaces ?

matrix format
  
  ------RGSTRTSTHG--------------RA--   L                                   +3zpl_B    
                                                                       +---1 
  ------------NASTRGHT--STFT--------   L                   +-----------3   +1vtn_C    
                                                           !           ! 
  ------------NASTRTHT--STLT--------   L              +----5           +---4lg0_A    
                                                      !    ! 
  TT------KATTQTTG--LTRT----KA--FTYT   L            +-6    +---------------2p7c_B    
                                                    ! ! 
  ------------NASTRGHT--STLT--------   L            ! !             +------7cby_C    
                                             +------7 +-------------4 
  ------------NASTRTHT--ST----------   L     !      !               +------3l2c_A    
                                             !      ! 
  ----DCLT--AGTTRG----RG--------RA--   L   +-8      !                      +5h3r_A    
                                           ! !      +----------------------2 
  --------------RC--YG--------KT----       ! !                             +2acj_B    
                                         --9 ! 
  ------------------YG--------------       ! +-----------------------------3eyi_B    
                                           ! 
  --VTSARGTA--RT--------------------   L   +-----------------------------6za3_B    
                                         

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updated Sat Jan 10 07:07:52 2026