structure nameCRYSTAL STRUCTURE OF THE LACI FAMILY MEMBER, PURR, BOUND TO DNA: MINOR GROOVE BINDING BY ALPHA HELICES
(PROTEIN PURINE REPRESSOR)
referenceSchumacher et al.
sourceEscherichia coli
experimentX-ray (resolution=2.60, R-factor=0.177)
structural superfamilyPeriplasmic binding protein-like I;lambda repressor-like DNA-binding domains;
sequence familyPeriplasmic binding proteins and sugar b; Bacterial regulatory proteins, lacI fami;
reference complex1jft_A
links to other resourcesNAKB PDBSum PDIdb DNAproDB
protein sequence
interface signatureSTRLK

Estimated binding specificities ?

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# IC=5.199 IC/col=0.650 n_of_columns=8 specificity:   
A |   0   0  12  31  24  96   4  16
C |  96   0  60  21  24   0  81  19
G |   0  96  12  21  24   0   7  45
T |   0   0  12  23  24   0   4  16
scan!

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updated Sat Aug 2 03:02:14 2025