1trr_AB : 3D-footprint complex

structure name	TANDEM BINDING IN CRYSTALS OF A TRP REPRESSOR/OPERATOR HALF-SITE COMPLEX
reference	Lawson et al.
source	ESCHERICHIA COLI
experiment	X-ray (resolution=2.40, R-factor=?)
structural superfamily	TrpR-like;
reference complex	1co0_A
links to other resources	NAKB PDIdb DNAproDB
protein sequence	> 1trr_A interface=1,67,68,78,79,80,82,83, AqqspysaamaeqrheewlrfvdllknayqndlhlpllnlmltpderealgtrvriveellrgemsQRelknelgagIATiTRgsnslkaapvelrqwleevll > 1trr_B interface=79,80, aqqspysaamaeqrheewlrfvdllknayqndlhlpllnlmltpderealgtrvriveellrgemsqrelknelgagiATitrgsnslkaapvelrqwleevll
interface signature	AQRIATTR/AT

Estimated binding specificities ?

readout + contact

# IC=7.859 IC/col=0.561 n_of_columns=14

specificity:

A |  90  24  11   1  24  24  24  15  24   4  17  96   0   0
C |   1  24  59   4  24  24  24  13  24   1  15   0  96   0
G |   4  24  11  90  24  24  24  15  24  90  15   0   0  96
T |   1  24  15   1  24  24  24  53  24   1  49   0   0   0

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updated Wed Jun 24 11:44:34 2026