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structure nameSOLUTION STRUCTURE OF A DIMER OF LAC REPRESSOR DNA-BINDING DOMAIN COMPLEXED TO ITS NATURAL OPERATOR O2
(LACTOSE OPERON REPRESSOR)
sourceESCHERICHIA COLI
experimentNMR
structural superfamilylambda repressor-like DNA-binding domains;
sequence familyBacterial regulatory proteins, lacI family;
multimeric complexes1cjg_AB 1efa_AB 1jwl_AB 1l1m_AB 1lbg_AB 1lbg_CD 1osl_AB 2bjc_AB 2kei_AB 2kej_AB 2kek_AB 2pe5_AB
redundant complexes2kek 2bjc 1l1m 2kei 1osl 1cjg
reference complex1l1m_B
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureLYSYQSRHALA

Estimated binding specificities ?

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# IC=11.096 IC/col=1.110 n_of_columns=10 specificity:   
A |   0   0   0   0   0  96   0  96  13  13
C |  96   0  96   0  96   0  96   0  13  16
G |   0  96   0   0   0   0   0   0  16  13
T |   0   0   0  96   0   0   0   0  54  54
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updated Sun Jun 28 05:52:01 2026