1trr_JK : 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_J interface=1,67,68,78,79,80,82,83, AqqspysaamaeqrheewlrfvdllknayqndlhlpllnlmltpderealgtrvriveellrgemsQRelknelgagIATiTRgsnslkaapvelrqwleevll > 1trr_K interface=79,80, aqqspysaamaeqrheewlrfvdllknayqndlhlpllnlmltpderealgtrvriveellrgemsqrelknelgagiATitrgsnslkaapvelrqwleevll
interface signature	AQRIATTR/AT

Estimated binding specificities ?

readout + contact

# IC=5.888 IC/col=0.421 n_of_columns=14

specificity:

A |   0   0   6  24   4  24  24  24  24  24  17  10  24   4
C |  96   0   4  24  84  24  24  24  24  24  69  17  24   4
G |   0  96   4  24   4  24  24  24  24  24   6  56  24   6
T |   0   0  82  24   4  24  24  24  24  24   4  13  24  82

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updated Sun Jan 4 23:42:48 2026