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structure nameISORETICULAR, INTERPENETRATING CO-CRYSTAL OF REPLICATION INITIATOR PROTEIN REPE54 AND SYMMETRICAL EXPANDED DUPLEX (31MER) CONTAINING THE COGNATE REPE54 SEQUENCE AND AN ADDITIONAL G-C RICH SEQUENCE WITH BLUNT ENDS AND 3' TERMINAL PHOSPHATES.
(Replication initiation protein)
referenceSlaughter et al.
sourceEscherichia coli K-12
experimentX-ray (resolution=2.45, R-factor=0.224)
structural superfamily"Winged helix" DNA-binding domain;
sequence familyInitiator Replication protein;
multimeric complexes2z9o_AB
reference complex8ac8_C
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureSAESKRRSYRPDRRR

Estimated binding specificities ?

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# IC=15.059 IC/col=0.717 n_of_columns=21 specificity:   
A |  84  11  24   9   0   0   0  96   0  96  24  24  24  24  24   0   0  24  91   9  91
C |   4  62  24   9   0   0   0   0  96   0  24  24  24  24  24  96  96  24   0  72   0
G |   4   9  24  14  96   0  96   0   0   0  24  24  24  24  24   0   0  24   0   4   4
T |   4  14  24  64   0  96   0   0   0   0  24  24  24  24  24   0   0  24   5  11   1
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updated Mon Jun 29 11:37:42 2026