1trr_A : 3D-footprint complex

structure name	TANDEM BINDING IN CRYSTALS OF A TRP REPRESSOR/OPERATOR HALF-SITE COMPLEX (PROTEIN TRP REPRESSOR)
reference	Lawson et al.
source	ESCHERICHIA COLI
experiment	X-ray (resolution=2.40, R-factor=0.241)
structural superfamily	TrpR-like;
sequence family	Trp repressor protein;
multimeric complexes	1co0_AB 1rcs_AB 1tro_AG 1trr_AB 1trr_DEGH 1trr_JK
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
interface signature	AQRIATTR

Estimated binding specificities ?

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# IC=5.715 IC/col=0.520 n_of_columns=11

specificity:

A |  10  24  24  24  21  24   5  10  96   0   0
C |  21  24  24  24  15  24   0  21   0  96   0
G |  55  24  24  24  10  24  90  15   0   0  96
T |  10  24  24  24  50  24   1  50   0   0   0

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updated Thu Jan 8 19:17:48 2026