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yeaI | Putative membrane-anchored diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. (491 aa) | ||||
yeaJ | Putative diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. (496 aa) | ||||
ecpR | Putative transcriptional regulator for the ecp operon; Part of the ecpRABCDE operon, which encodes the E.coli common pilus (ECP). ECP is found in both commensal and pathogenic strains and plays a dual role in early-stage biofilm development and host cell recognition. Positively regulates the expression of the ecp operon (By similarity). Also represses expression of the flagellar master operon flhDC, and consequently prevents flagellum biosynthesis and motility. Acts by binding to the regulatory region of the flhDC operon (Probable); Belongs to the EcpR/MatA family. (196 aa) | ||||
yaiC | Diguanylate cyclase, cellulose regualtor; A probable diguanylate cyclase. The last member of a cascade of expressed proteins, its expression requires DgcM. DgcC production induces biosynthesis of cellulose in some E.coli isolates, but not in K12 strains. Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. (371 aa) | ||||
uspG | Universal stress protein UP12; Has intrinsic autoadenylation and autophosphorylation activities, probably on Ser or Thr residues. Belongs to the universal stress protein A family. (142 aa) | ||||
yliF | Putative membrane-anchored diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. (442 aa) | ||||
ybjN | Negative regulator of motility; Putative sensory transduction regulator. (158 aa) | ||||
ycgR | Flagellar velocity braking protein, c-di-GMP-regulated; Acts as a flagellar brake, regulating swimming and swarming in a bis-(3'-5') cyclic diguanylic acid (c-di-GMP)-dependent manner. When bound to c-di-GMP it binds to elements of the flagellar motor (MotA and/or FliG and FliM , binding to FliM also occurs in the absence of c-di-GMP), causing the motor to slow down. Thus, increasing levels of c-di-GMP lead to decreased motility. Probably binds 1 c-di-GMP dimer per subunit. (244 aa) | ||||
ydaM | Diguanylate cyclase, csgD regulator; Part of a signaling cascade that regulates curli biosynthesis. The cascade is composed of two cyclic-di-GMP (c-di-GMP) control modules, in which c-di-GMP controlled by the DgcE/PdeH pair (module I) regulates the activity of the DgcM/PdeR pair (module II), which in turn regulates activity of the transcription factor MlrA and expression of the master biofilm regulator csgD. DgcM stimulates activity of MlrA by direct interaction, leading to the transcription of csgD. It also catalyzes the synthesis of c-di-GMP via the condensation of 2 GTP molecules, w [...] (410 aa) | ||||
dosC | Diguanylate cyclase, cold- and stationary phase-induced oxygen-dependent biofilm regulator; Globin-coupled heme-based oxygen sensor protein displaying diguanylate cyclase (DGC) activity in response to oxygen availability. Thus, catalyzes the synthesis of cyclic diguanylate (c-di-GMP) via the condensation of 2 GTP molecules. Is involved in the modulation of intracellular c-di-GMP levels, in association with DosP which catalyzes the degradation of c-di-GMP (PDE activity). Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. DosC regulates biofilm [...] (460 aa) | ||||
yneF | Putative membrane-bound diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. (315 aa) | ||||
dgcZ | Diguanylate cyclase, zinc-sensing; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. May act as a zinc sensor that controls, via c-di-GMP, post-translational events. Overexpression leads to a strong repression of swimming; swimming returnes to normal when residues 206-207 are both mutated to Ala. Overexpression also leads to a reduction in flagellar abundance and a 20-fold increase in c-di-GMP levels in vivo. Required for aminoglycoside-mediated induction of biofilm formation, it also plays a lesser role in biofilm production in response to ot [...] (296 aa) | ||||
tsr | Methyl-accepting chemotaxis protein I, serine sensor receptor; Receptor for the attractant L-serine and related amino acids. Is also responsible for chemotaxis away from a wide range of repellents, including leucine, indole, and weak acids. (551 aa) | ||||
yhjH | cyclic-di-GMP phosphodiesterase, FlhDC-regulated; Involved in the control of the switch from cell motility to adhesion via regulation of cellular levels of cyclic-di-GMP (c-di-GMP). Part of a signaling cascade that regulates curli biosynthesis. The cascade is composed of two c-di-GMP control modules, in which c-di-GMP controlled by the DgcE/PdeH pair (module I) regulates the activity of the DgcM/PdeR pair (module II), which in turn regulates activity of the transcription factor MlrA and expression of the master biofilm regulator csgD. Effect on flagella is controlled via the c-di-GMP-b [...] (255 aa) | ||||
glgS | Motility and biofilm regulator; Major determinant of cell surface composition. Negatively regulates motility, adhesion and synthesis of biofilm exopolysaccharides. (66 aa) | ||||
qseC | Quorum sensing sensory histidine kinase in two-component regulatory system with QseB; Member of a two-component regulatory system QseB/QseC. Activates the flagella regulon by activating transcription of FlhDC. May activate QseB by phosphorylation. (449 aa) | ||||
mqsR | GCU-specific mRNA interferase toxin of the MqsR-MqsA toxin-antitoxin system; Toxic component of a type II toxin-antitoxin (TA) system. Plays a significant role in the control of biofilm formation and induction of persister cells in the presence of antibiotics. An mRNA interferase which has been reported to be translation-independent. It has also been reported to be translation-dependent. Cleavage has been reported to occur on either side of G in the sequence GCU. Also reported to cleave after C in GC(A/U) sequences. There are only 14 genes in E.coli W3110 (and probably also MG1655) tha [...] (98 aa) | ||||
yfiN | Putative membrane-anchored diguanylate cyclase; Bifunctional protein that catalyzes the synthesis of cyclic- di-GMP (c-di-GMP) in response to reductive stress and then dynamically relocates to the division site to arrest cell division in response to envelope stress. In the presence of high intracellular c-di-GMP levels, and in response to envelope stress, interacts with cell division proteins and halts cell division, without disassembling the Z ring, but by blocking its further progress toward cytokinesis. Part of a network that regulates cell motility by altering levels of c- di-GMP. (408 aa) | ||||
rcsB | Response regulator in two-component regulatory system with RcsC and YojN; Component of the Rcs signaling system, which controls transcription of numerous genes. RcsB is the response regulator that binds to regulatory DNA regions. Can function both in an RcsA-dependent or RcsA-independent manner. The system regulates expression of numerous genes, including genes involved in colanic acid capsule synthesis, biofilm formation, cell division and outer membrane proteins synthesis. Also involved, with GadE, in control of glutamate-dependent acid resistance, and, with BglJ, in derepression of [...] (216 aa) | ||||
yedQ | Putative membrane-anchored diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules (By similarity). Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. Involved in the regulation of cellulose production. (564 aa) | ||||
rcsA | Transcriptional regulator of colanic acid capsular biosynthesis; Component of the Rcs signaling system, which controls transcription of numerous genes. Binds, with RcsB, to the RcsAB box to regulate expression of genes involved in colanic acid capsule synthesis. (207 aa) | ||||
fliZ | RpoS antagonist; During the post-exponential growth phase transiently interferes with RpoS (sigma S) activity without affecting expression of RpoS itself. It is probably not an anti-sigma factor as its overexpression is detrimental in rapidly growing cells where there is almost no sigma S factor. There is a strong overlap between Crl- activated genes and FliZ-down-regulated genes. FliZ acts as a timing device for expression of the genes for the adhesive curli fimbriae by indirectly decreasing expression of the curli regulator CsgD. (183 aa) | ||||
cheA | Chemotaxis protein CheA; Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. CheA is autophosphorylated; it can transfer its phosphate group to either CheB or CheY. (654 aa) | ||||
tar | Methyl-accepting chemotaxis protein II; Receptor for the attractant L-aspartate and related amino and dicarboxylic acids. Tar also mediates taxis to the attractant maltose via an interaction with the periplasmic maltose binding protein. Tar mediates taxis away from the repellents cobalt and nickel. (553 aa) | ||||
cheY | Chemotaxis regulator transmitting signal to flagellar motor component; Involved in the transmission of sensory signals from the chemoreceptors to the flagellar motors. In its active (phosphorylated or acetylated) form, CheY exhibits enhanced binding to a switch component, FliM, at the flagellar motor which induces a change from counterclockwise to clockwise flagellar rotation. Overexpression of CheY in association with MotA and MotB improves motility of a ycgR disruption, suggesting there is an interaction (direct or indirect) between the c-di-GMP-binding flagellar brake protein and th [...] (129 aa) | ||||
cheZ | Chemotaxis regulator, protein phosphatase for CheY; Plays an important role in bacterial chemotaxis signal transduction pathway by accelerating the dephosphorylation of phosphorylated CheY (CheY-P); Belongs to the CheZ family. (214 aa) | ||||
ydiV | anti-FlhD4C2 factor, inactive EAL family phosphodiesterase; Upon overexpression acts as a novel anti-FlhC(2)FlhD(4) factor, decreasing its DNA-binding activity, able to negatively regulate expression of flagellar class II operons including FliC. (237 aa) |