interface graph thumbnail
legend  pdf

structure name[4FE-4S]-NSRR COMPLEXED TO 23-BP HMPA1 OPERATOR FRAGMENT
(HTH-type transcriptional repressor NsrR)
referenceFontecilla-Camps et al.
sourceStreptomyces coelicolor A3(2) / Streptomyces coelicolor A3(2)
experimentX-ray (resolution=3.00, R-factor=0.220)
structural superfamily"Winged helix" DNA-binding domain;
sequence familyTranscriptional regulator;
multimeric complexes7b0c_AB
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureTHKR

Estimated binding specificities ?

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# IC=2.917 IC/col=0.486 n_of_columns=6 specificity:   
A |  60   0  24  24  12  84
C |  12  96  24  24  12   0
G |  12   0  24  24  60  12
T |  12   0  24  24  12   0
scan!

Dendrogram of similar interfaces ?

matrix format
  
  --------------RC----YG--------KT----                                        +2acj_B    
                                                 +----------------------------1 
  --VTSARGTA--RT----------------------   L       !                            +6za3_B    
                                               +-3 
  TT------KATTQTTG----LTRT----KA--FTYT   L     ! !                    +--------2p7c_B    
                                             +-4 +--------------------2 
  ------------NAST--RTHT--STLT--------   L   ! !                      +--------4lg0_A    
                                           --5 ! 
  --------------------YG--------------       ! +-----------------------------3eyi_B    
                                             ! 
  --------------NAST--HT--STLT--------   L   +-----------------------------7cby_C    
                                           

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updated Tue Jun 30 04:16:08 2026