interface graph thumbnail
legend  pdf

structure nameENGINEERED VARIANT OF I-ONUI MEGANUCLEASE WITH IMPROVED THERMOSTABILITY AND FULLY ALTERED SPECIFICITY TARGETING CHOLERA TOXIN A SUBUNIT
(I-ONUI-E-THERM-BCTXA)
referenceStoddard et al. Structure 28 760 2020
sourceSYNTHETIC CONSTRUCT
experimentX-ray (resolution=2.72, R-factor=0.228)
structural superfamilyHoming endonucleases;
sequence familyLAGLIDADG endonuclease;
reference complex6uwj_A
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureSRRRKEEKSARRWCFNLQCSYLKFWET

Estimated binding specificities ?

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# IC=22.731 IC/col=1.082 n_of_columns=21 specificity:   
A |   0   0  10   0   0   0   0   0   0  65  24   0   0   0  86   0   0   0  80   5   5
C |   0   0  10  96  10   0   0   0  96  10  24   0  96   0  10  96   0   0   5   0   5
G |   0  96  11   0   0  96  96   0   0  11  24   0   0   0   0   0   0   0   6   1   5
T |  96   0  65   0  86   0   0  96   0  10  24  96   0  96   0   0  96  96   5  90  81
scan!

Dendrogram of similar interfaces ?

matrix format
  
  SA--RARGRGKT----EC--ECKG--STATRGRG--WGCAFT--NTLA------QACT----SA--YTLAKG----FTWCEA--TT   L                              +6uw0_B    
                                                                                                 +------------------------1 
  SGSTLGQG--KTYARGKGVT----HCHG--QTRTDC--SANA--KG--STTASARGQGRG----------YC--------RTEAVG   L   +-2                        +4yis_A    
                                                                                               ! ! 
  ------------------------------------------DT----------------------------NGKG----------   L --3 +-------------------------1r7m_B    
                                                                                               ! 
  ------------------------------------------------------------FC--AG--RC----------FA----   L   +---------------------------6dg0_A    
                                                                                             

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updated Sun Jun 28 20:01:13 2026