interface graph thumbnail
legend  pdf

structure nameCRYSTAL STRUCTURE OF OHRR BOUND TO THE OHRA PROMOTER: STRUCTURE OF MARR FAMILY PROTEIN WITH OPERATOR DNA
(Organic hydroperoxide resistance transcriptional regulator)
referenceFuangthong et al. Mol.Cell 20 131 2005
sourceBacillus subtilis
experimentX-ray (resolution=2.64, R-factor=0.216)
structural superfamily"Winged helix" DNA-binding domain;
sequence familyMarR family;
multimeric complexes1z9c_AB 1z9c_CD 1z9c_EF
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureDSTTRR

Estimated binding specificities ?

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# IC=6.235 IC/col=0.693 n_of_columns=9 specificity:   
A |  45  22  24  90   5   5  24  96  96
C |  16  45  24   0   0   0  24   0   0
G |  13  18  24   1   0   1  24   0   0
T |  22  11  24   5  91  90  24   0   0
scan!

Dendrogram of similar interfaces ?

matrix format
  
  --DCLT--AGTTRG----RG----RA----   L                                   +5h3r_A    
                                                       +---------------1 
  ------------RC--YG----KT------                 +-----2               +2acj_B    
                                                 !     ! 
  ----RGSTRTSTHG----------RA----   L     +-------3     +---------------3zpl_B    
                                         !       ! 
  TT----KATTQTTG--LTRTKA----FTYT   L   +-4       +---------------------2p7c_B    
                                       ! ! 
  ----RGTCTA--RGNT--------RT----   L --5 +-----------------------------4fx4_B    
                                       ! 
  ----------------YG------------       +-----------------------------3eyi_B    
                                     

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updated Mon Jun 29 14:51:43 2026