RegulonDB RegulonDB 9.4:Regulon Page

ArgP DNA-binding transcriptional dual regulator

Synonyms: ArgP-L-arginine, ArgP, ArgP-Lysine
ArgP, arginine protein, controls the transcription of genes involved in the arginine transport system and genes involved in DNA replication. DNA replication is also regulated directly by ArgP when it binds to three 13-mers located in the origin of replication (OriC), blocking the DNA opening by DnaA and inhibiting this cellular process [13, 14, 15] DNA binding by ArgP is prevented when the serine protease Do (DegP) hydrolyzes this transcriptional regulator [16].
ArgP was first identified as an inhibitor of oriC-initiated DNA replication in vitro. It has also subsequently been described as a nucleoid-associated protein that shows apparently sequence-nonspecific DNA-binding activity [17]
ArgP is a noncanonical regulator, as it binds to a number of additional sites in the genome without an apparent direct regulatory effect, exhibiting low-affinity binding to these sites [3, 10, 15]
To activate transcription, ArgP recognizes AT-rich DNA-binding sites, but no consensus sequence has been identified.
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Transcription factor      
TF conformation(s):
Name Conformation Type TF-Effector Interaction Type Apo/Holo Conformation Evidence (Confirmed, Strong, Weak) References
ArgP Functional   Apo [BPP] [1]
ArgP-L-arginine Functional Allosteric Holo [BPP], [GEA], [IPI] [2]
ArgP-Lysine Non-Functional Allosteric Holo [BPP], [GEA], [IPI] [1], [2]
Evolutionary Family: LysR
Connectivity class: Local Regulator
Gene name: argP
  Genome position: 3059753-3060646
  Length: 894 bp / 297 aa
Operon name: argP
TU(s) encoding the TF:
Transcription unit        Promoter

Regulated gene(s) argO, argP, dapB, dapD, dnaA, dnaN, gdhA, lysA, lysC, lysP, nrdA, nrdB, recF, yfaE
Multifun term(s) of regulated gene(s) MultiFun Term (List of genes associated to the multifun term)
lysine (5)
DNA replication (4)
Porters (Uni-, Sym- and Antiporters) (2)
Transcription related (2)
nucleoproteins, basic proteins (2)
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Regulated operon(s) argO, argP, dapB, dnaAN-recF, gdhA, lysA, lysC, lysP, map-glnD-dapD, nrdAB-yfaE
First gene in the operon(s) argO, argP, dapB, dapD, dnaA, gdhA, lysA, lysC, lysP, nrdA
Simple and complex regulons ArgP
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Simple and complex regulatory phrases Regulatory phrase (List of promoters regulated by the phrase)

Transcription factor binding sites (TFBSs) arrangements       

  Functional conformation Function Promoter Sigma factor Central Rel-Pos Distance to first Gene Genes Sequence LeftPos RightPos Evidence (Confirmed, Strong, Weak) References
  ArgP-L-arginine activator argOp Sigma70 -53.5 -81.5 argO
3068880 3068899 [BPP], [GEA], [HIBSCS], [IC] [2], [3], [4], [5]
  ArgP-L-arginine activator argOp Sigma70 -33.5 -61.5 argO
3068860 3068879 [BCE], [BPP], [GEA], [HIBSCS], [IC] [1], [2], [3], [4], [5]
  ArgP-L-arginine repressor argPp nd -36.5 -59.5 argP
3059684 3059703 [HIBSCS], [IC] [6]
  ArgP-L-arginine repressor argPp nd -16.5 -39.5 argP
3059704 3059723 [GEA], [HIBSCS], [IC] [6]
  ArgP activator dapBp1 Sigma70 -81.5 -112.5 dapB
28252 28271 [BCE], [BPP], [GEA], [HIBSCS], [IC] [1], [3]
  ArgP activator dapDp Sigma70 nd nd dapD nd nd [BPP], [GEA] [3]
  ArgP activator dnaAp1 nd -69.5 -301.5 dnaA, dnaN, recF
3884021 3884040 [BPP], [GEA], [IC] [3], [7], [8], [9]
  ArgP activator dnaAp1 nd -49.5 -281.5 dnaA, dnaN, recF
3884001 3884020 [BPP], [GEA], [IC] [3], [7], [8], [9]
  ArgP activator dnaAp1 nd 219.5 -13.5 dnaA, dnaN, recF
3883733 3883752 [BPP], [GEA], [IC] [3], [7], [8], [9]
  ArgP activator gdhAp1 Sigma70 nd nd gdhA nd nd [BPP], [GEA] [3]
  ArgP activator lysAp Sigma70 nd nd lysA nd nd [BPP], [GEA] [3]
  ArgP activator lysCp1 Sigma70 nd nd lysC nd nd [BPP], [GEA] [3]
  ArgP activator lysPp Sigma70 -82.5 -110.5 lysP
2248633 2248652 [BPP], [GEA], [HIBSCS], [IC], [SM] [3], [10]
  ArgP activator lysPp Sigma70 -62.5 -90.5 lysP
2248613 2248632 [BPP], [GEA], [HIBSCS], [IC] [3], [10]
  ArgP activator nrdAp Sigma70 -334.5 -444.5 nrdA, nrdB, yfaE
2344411 2344430 [BPP], [GEA], [IC] [3], [11]
  ArgP activator nrdAp Sigma70 -281.5 -391.5 nrdA, nrdB, yfaE
2344464 2344483 [BPP], [GEA], [IC] [3], [12]
  ArgP activator nrdAp Sigma70 -244.5 -354.5 nrdA, nrdB, yfaE
2344501 2344520 [BPP], [GEA], [IC] [3], [12]
  ArgP activator nrdAp Sigma70 -218.5 -328.5 nrdA, nrdB, yfaE
2344527 2344546 [BPP], [GEA], [IC] [3], [12]
  ArgP activator nrdAp Sigma70 -190.5 -300.5 nrdA, nrdB, yfaE
2344555 2344574 [BPP], [GEA], [IC] [3], [12]
  ArgP activator nrdAp Sigma70 -163.5 -273.5 nrdA, nrdB, yfaE
2344582 2344601 [BPP], [GEA], [IC] [3], [12]

Alignment and PSSM for ArgP TFBSs    

Aligned TFBS of ArgP   

Position weight matrix (PWM).   
A	7	5	3	9	3	2	5	0	0	5	6	4	0	8	3	6	6	4
C	8	1	0	1	2	0	0	3	7	2	9	0	0	0	3	4	0	8
G	1	0	4	0	0	3	8	0	7	4	1	3	5	6	3	0	6	1
T	0	10	9	6	11	11	3	13	2	5	0	9	11	2	7	6	4	3

PWM logo   


Evolutionary conservation of regulatory elements    
     Note: Evolutionary conservation of regulatory interactions and promoters is limited to gammaproteobacteria.
TF-target gene evolutionary conservation
Promoter-target gene evolutionary conservation


 [BPP] Binding of purified proteins

 [GEA] Gene expression analysis

 [IPI] Inferred from physical interaction

 [HIBSCS] Human inference based on similarity to consensus sequences

 [IC] Inferred by curator

 [BCE] Binding of cellular extracts

 [SM] Site mutation


 [1] Bouvier J., Stragier P., Morales V., Remy E., Gutierrez C., 2008, Lysine represses transcription of the Escherichia coli dapB gene by preventing its activation by the ArgP activator., J Bacteriol. 190(15):5224-9

 [2] Laishram RS., Gowrishankar J., 2007, Environmental regulation operating at the promoter clearance step of bacterial transcription., Genes Dev. 21(10):1258-72

 [3] Marbaniang CN., Gowrishankar J., 2011, Role of ArgP (IciA) in Lysine-Mediated Repression in Escherichia coli., J Bacteriol. 193(21):5985-96

 [4] Nandineni MR., Gowrishankar J., 2004, Evidence for an arginine exporter encoded by yggA (argO) that is regulated by the LysR-type transcriptional regulator ArgP in Escherichia coli., J Bacteriol. 186(11):3539-46

 [5] Peeters E., Nguyen Le Minh P., Foulquie-Moreno M., Charlier D., 2009, Competitive activation of the Escherichia coli argO gene coding for an arginine exporter by the transcriptional regulators Lrp and ArgP., Mol Microbiol. 74(6):1513-26

 [6] Celis RT., 1999, Repression and activation of arginine transport genes in Escherichia coli K 12 by the ArgP protein., J Mol Biol. 294(5):1087-95

 [7] Lee Y., Lee H., Yim J., Hwang D., 1997, The binding of two dimers of IciA protein to the dnaA promoter 1P element enhances the binding of RNA polymerase to the dnaA promoter 1P., Nucleic Acids Res. 25(17):3486-9

 [8] Lee YS., Hwang DS., 1997, Occlusion of RNA polymerase by oligomerization of DnaA protein over the dnaA promoter of Escherichia coli., J Biol Chem. 272(1):83-8

 [9] Lee YS., Kim H., Hwang DS., 1996, Transcriptional activation of the dnaA gene encoding the initiator for oriC replication by IciA protein, an inhibitor of in vitro oriC replication in Escherichia coli., Mol Microbiol. 19(2):389-96

 [10] Ruiz J., Haneburger I., Jung K., 2011, Identification of ArgP and Lrp as transcriptional regulators of lysP, the gene encoding the specific lysine permease of Escherichia coli., J Bacteriol. 193(10):2536-48

 [11] Ohtsubo T., Matsuda O., Iba K., Terashima I., Sekiguchi M., Nakabeppu Y., 1998, Molecular cloning of AtMMH, an Arabidopsis thaliana ortholog of the Escherichia coli mutM gene, and analysis of functional domains of its product., Mol Gen Genet. 259(6):577-90

 [12] Han JS., Kwon HS., Yim JB., Hwang DS., 1998, Effect of IciA protein on the expression of the nrd gene encoding ribonucleoside diphosphate reductase in E. coli., Mol Gen Genet. 259(6):610-4

 [13] Thony B., Hwang DS., Fradkin L., Kornberg A., 1991, iciA, an Escherichia coli gene encoding a specific inhibitor of chromosomal initiation of replication in vitro., Proc Natl Acad Sci U S A. 88(10):4066-70

 [14] Hwang DS., Kornberg A., 1990, A novel protein binds a key origin sequence to block replication of an E. coli minichromosome., Cell. 63(2):325-31

 [15] Hwang DS., Thony B., Kornberg A., 1992, IciA protein, a specific inhibitor of initiation of Escherichia coli chromosomal replication., J Biol Chem. 267(4):2209-13

 [16] Yoo SJ., Seol JH., Woo SK., Suh SW., Hwang DS., Ha DB., Chung CH., 1993, Hydrolysis of the IciA protein, an inhibitor of DNA replication initiation, by protease Do in Escherichia coli., FEBS Lett. 327(1):17-20

 [17] Azam TA., Ishihama A., 1999, Twelve species of the nucleoid-associated protein from Escherichia coli. Sequence recognition specificity and DNA binding affinity., J Biol Chem. 274(46):33105-13

 [18] Ali Azam T., Iwata A., Nishimura A., Ueda S., Ishihama A., 1999, Growth phase-dependent variation in protein composition of the Escherichia coli nucleoid., J Bacteriol. 181(20):6361-70

 [19] Han JS., Park JY., Lee YS., Thony B., Hwang DS., 1999, PhoB-dependent transcriptional activation of the iciA gene during starvation for phosphate in Escherichia coli., Mol Gen Genet. 262(3):448-52