3o9x_A : 3D-footprint complex

structure name	STRUCTURE OF THE E. COLI ANTITOXIN MQSA (YGIT/B3021) IN COMPLEX WITH ITS GENE PROMOTER (Uncharacterized HTH-type transcriptional regulator ygiT)
reference	Brown et al. J.Biol.Chem. 286 2285 2011
source	Escherichia coli
experiment	X-ray (resolution=2.10, R-factor=0.181)
structural superfamily	lambda repressor-like DNA-binding domains;
multimeric complexes	3o9x_AB
links to other resources	NAKB PDIdb DNAproDB
protein sequence	> 3o9x_A interface=86,97,98,101,102, hmkcpvchqgemvsgikdipytfrgrktvlkgihglycvhceesimnkeesdafmaqvkafrasvnaetvapefivkvrkklsltQkeaseifgggVNafSRyekgnaqphpstikllrvldkhpellneir
interface signature	QVNSR

Estimated binding specificities ?

readout + contact

# IC=4.250 IC/col=0.850 n_of_columns=5

specificity:

A |   0   0   0  12  60
C |   0   0   0  12  12
G |  84  96   0  12  12
T |  12   0  96  60  12

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Related DNA sequences reported in the literature ?

site	source	matches (E-value)
term: MQSA
AACCT	PubMed	3o9x_A(1.36e-04), 3o9x_AB(1.24e-02)
AGGTT	PubMed	3o9x_A(1.36e-04), 3o9x_AB(1.24e-02)

Dendrogram of similar interfaces ?

matrix format

  
  QT----VTNT--STRG------   L   +-----------------3o9x_A    
                             --3 
  QT--STNTVTATSTQTRTETTT   L   !             +---2r1j_L    
                               +-------------2 
  --AT--QAAT--SA--------                     !  +4z5h_A    
                                             +--1 
  --STKCQAAT--SA--------   L                    +3dnv_B

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updated Mon Jun 29 16:42:42 2026