Curation Information

Publication
Characterization of the CopR regulon of Lactococcus lactis IL1403.;Magnani D, Barré O, Gerber SD, Solioz M;Journal of bacteriology 2008 Jan; 190(2):536-45 [17993525]
TF
CopR [Q9CHA6, view regulon]
Reported TF sp.
Lactococcus lactis subsp. lactis Il1403
Reported site sp.
Lactococcus lactis subsp. lactis Il1403
Created by
Erill Lab
Curation notes
-

Experimental Process

Copper regulated proteins were identified by 2D gel electrophoresis and characterized by MALDI-TOF by comparing the cytosolic proteome of L. lactis cells grown in the absence of copper to that of cells challenged with 200 μM copper for 45 min. "cop" boxes were identified by visual inspection on promoters corresponding to genes induced by copper. A consensus search of the genome revealed 28 putative sites, which were then validated by EMSA. RT-PCR was used then to validate copper-mediated induction of six promoters.

Transcription Factor Binding Sites


GATTACATATGTAAAC
ATCTACAGATGTAAAC
GTTTACAATTGTAAAC
GTTTACAATTGTAAAC
GTTTACACGTGTAAAC
GTTTACATGTGTAAAT
GTTTACAAGTGTAAAT
GATTACATATGTAAAC
ATCTACAGATGTAAAC
GTTTACAATTGTAAAC
GTTTACAATTGTAAAC
GTTTACACGTGTAAAC
GTTTACATGTGTAAAT
GTTTACAAGTGTAAAT

Gene Regulation

Regulated genes for each binding site are displayed below. Gene regulation diagrams show binding sites, positively-regulated genes, negatively-regulated genes, both positively and negatively regulated genes, genes with unspecified type of regulation. For each indvidual site, experimental techniques used to determine the site are also given.

Site sequence Regulated genes Gene diagram Experimental techniques TF function TF type
GATTACATATGTAAAC ytjD,
... ... ytjD ytjA L200070
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details MALDI-TOF Mass Spectrometry (ECO:0005527) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - Experimental technique details Visual sequence inspection (nan) - repressor not specified
ATCTACAGATGTAAAC lctO
... ... lctO
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details MALDI-TOF Mass Spectrometry (ECO:0005527) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - Experimental technique details Visual sequence inspection (nan) - repressor not specified
GTTTACAATTGTAAAC yaiB, yaiA, yahD, L200005
... ... yaiB yaiA yahD L200005
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details MALDI-TOF Mass Spectrometry (ECO:0005527) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - Experimental technique details Visual sequence inspection (nan) - repressor not specified
GTTTACAATTGTAAAC copB,
... ... copB folD yihD
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - repressor not specified
GTTTACACGTGTAAAC copR,
... ... copR yieF
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - repressor not specified
GTTTACATGTGTAAAT ydiD,
... ... ydiD ydiE
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - repressor not specified
GTTTACAAGTGTAAAT ytjD,
... ... ytjD ytjA L200070
Experimental technique details Consensus search (ECO:0005624) - Experimental technique details EMSA (ECO:0001807) - Experimental technique details MALDI-TOF Mass Spectrometry (ECO:0005527) - Experimental technique details qRT-PCR [RNA] (ECO:0001808) - Experimental technique details Visual sequence inspection (nan) - repressor not specified