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epsE | Bifunctional flagellar clutch and glycosyltransferase; May be involved in the production of the exopolysaccharide (EPS) component of the extracellular matrix during biofilm formation. EPS is responsible for the adhesion of chains of cells into bundles. Required for biofilm maintenance; Belongs to the glycosyltransferase 2 family. (278 aa) | ||||
abrB | Transcriptional regulator for transition state genes; Ambiactive repressor and activator of the transcription of genes expressed during the transition state between vegetative growth and the onset of stationary phase and sporulation. It controls the expression of genes spovG and tycA. AbrB binds to the tycA promoter region at two A- and T-rich sites, it may be the sole repressor of tycA transcription; To B.subtilis Abh and SpoVT. (96 aa) | ||||
veg | Conserved hypothetical protein; Stimulates biofilm formation via transcriptional activation of extracellular matrix genes. Acts by repressing SinR activity, independently of the SinI, SlrA and SlrR pathways. Could also be involved in the regulation of other genes during biofilm and spore formation. (86 aa) | ||||
amyE | Alpha-amylase; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type e: enzyme; Belongs to the glycosyl hydrolase 13 family. (659 aa) | ||||
srfAA | Surfactin synthetase; This protein is a multifunctional enzyme able to activate and polymerize the amino acids Leu, Glu, Asp and Val. Activation sites for these AA consist of individual domains. (3587 aa) | ||||
kinD | Histidine kinase phosphorylating Spo0A; Phosphorylates the sporulation-regulatory protein spo0F and, to a minor extent, is responsible for heterogeneous expression of spo0A during logarithmical growth. Also phosphorylates spo0A under biofilm growth conditions. (506 aa) | ||||
abbA | Regulator of AbrB repressor; Evidence 1a: Function experimentally demonstrated in the studied strain; Product type r: regulator. (65 aa) | ||||
kinC | Two-component sensor histidine kinase; Phosphorylates the sporulation-regulatory protein spo0A. (428 aa) | ||||
ktrC | Potassium uptake protein; Catalytic subunit of the KtrCD potassium uptake transporter. The 2 major potassium transporter complexes KtrAB and KtrCD confer resistance to both suddenly imposed and prolonged osmotic stress. (221 aa) | ||||
sigD | RNA polymerase sigma-28 factor (sigma-D); Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. This alternative sigma factor is required for the transcription of the flagellin and motility genes as well as for wild- type chemotaxis. (254 aa) | ||||
ymdB | Putative hydrolase involved in biofilm formation; Plays a central, regulatory role in the late adaptive responses and affects the levels of many genes. May act via regulation of cAMP levels. Decreases the expression of motility genes and induces genes involved in biofilm formation, by controlling the expression of SlrR. Required for formation of intercellular nanotubes that bridge neighboring cells to allow molecular exchange. Plays a key role in directing the early stages of colony development. In vitro, has a metal-dependent phosphodiesterase activity against 2',3'-cAMP and 2',3'-cGM [...] (264 aa) | ||||
ymcA | Master regulator for biofilm formation; May work together with YlbF to regulate community development. (143 aa) | ||||
spo0A | Response regulator; May play the central regulatory role in sporulation. It may be an element of the effector pathway responsible for the activation of sporulation genes in response to nutritional stress. Spo0A may act in concert with Spo0H (a sigma factor) to control the expression of some genes that are critical to the sporulation process. Repressor of abrB, activator of the spoIIa operon. Binds the DNA sequence 5'-TGNCGAA-3' (0A box). (267 aa) | ||||
sinI | Antagonist of SinR; Acts as an antagonist to SinR. SinI prevents SinR from binding to its target sequence on the gene for AprE. (57 aa) | ||||
sinR | Master regulator of biofilm formation; Negative as well as positive regulator of alternate developmental processes that are induced at the end of vegetative growth in response to nutrient depletion. Binds to the alkaline protease (aprE) gene at two sites. Also acts as a repressor of the key sporulation gene spo0A. Negatively regulates transcription of the eps operon, which is responsible for the biosynthesis of an exopolysaccharide involved in biofilm formation; therefore it could govern the transition between a state in which bacteria swim or swarm and a state in which bacteria assemb [...] (111 aa) | ||||
sipW | Type I signal peptidase; Required for the cleavage of the signal sequence of TasA and TapA, which are involved in biofilm formation. Belongs to the peptidase S26B family. (190 aa) | ||||
tapA | Lipoprotein for biofilm formation; Required for biofilm formation. Required for the proper anchoring and polymerization of TasA amyloid fibers at the cell surface. Is also a minor component of TasA fibers. (253 aa) | ||||
yrdP | Putative oxidoreductase; Involved in potassium and divalent cation transport. Enhances the transport activity of the cation/potassium transporter CzcD. (345 aa) | ||||
bslA | Biofilm hydrophobic layer component; Involved in biofilm formation. Self-polymerizes and forms a layer on the surface of biofilms that confers hydrophobicity to the biofilm. The layer is stable and capable of resistance to high mechanical force compression. Required for complex colony architecture. May function synergistically with exopolysaccharides and TasA amyloid fibers to facilitate the assembly of the biofilm matrix. (181 aa) | ||||
yugP | Putative metal-dependent protease/peptidase; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; Product type pe: putative enzyme. (225 aa) | ||||
mstX | Atypical membrane-integrating protein (Mistic protein); Chaperone that facilitates the production and integration of integral membrane proteins into the bacterial lipid bilayer. (110 aa) | ||||
yugO | Putative potassium channel protein; Evidence 3: Function proposed based on presence of conserved amino acid motif, structural feature or limited homology; putative transporter. (328 aa) | ||||
kinB | Two-component sensor histidine kinase; Phosphorylates the sporulation-regulatory proteins spo0A and spo0F. Spo0F is required for the KinB activity. (428 aa) | ||||
ganA | Arabinogalactan type I oligomer exo-hydrolase (beta-galactosidase, lactase); Hydrolyzes oligosaccharides released by the endo-1,4-beta- galactosidase GalA from arabinogalactan type I, a pectic plant polysaccharide. It is unable to use lactose as a sole carbon source. Maximal activity with o-nitrophenyl-beta-D-galactopyranoside (ONPG) and p-nitrophenyl-beta-D-galactopyranoside (PNPG) as substrates, trace activity with p-nitrophenyl-alpha-L-arabinopyranoside and o- nitrophenyl-beta-D-fucopyranoside as substrates, but no activity with p-nitrophenyl-alpha-D-galactopyranoside, p-nitrophenyl [...] (687 aa) | ||||
epsA | Modulator of protein tyrosine kinase EpsB; Evidence 2b: Function of strongly homologous gene; regulator. (234 aa) | ||||
slrR | Transcriptional regulator of autolysin genes; Represses sigma(D)-dependent flagellar genes and activate the eps and yqxM operons. Repressor activity is regulated by SlrA. Controls the initiation of biofilm formation. (152 aa) | ||||
hag | Flagellin protein; Flagellin is the subunit which polymerizes to form the filaments of bacterial flagella. Assembly into flagella requires FliW. Acts as a homeostatic autoinhibitory regulator to control its own cytoplasmic levels. Partner switching by flagellin between FliW and CsrA provides a flagellar assembly checkpoint to tightly control the timing of flagellin synthesis. Flagellin binds to assembly factor FliW, freeing translation regulator CsrA to repress translation of the flagellin mRNA. When the flagellar hook is assembled flagellin is secreted, depleting intracellular flagell [...] (304 aa) | ||||
flgM | Anti-sigma factor repressor of sigma(D)-dependent transcription; Allows the coupling of early and late flagellar synthesis through the repression of RNA polymerase sigma-D factor-dependent transcription. (88 aa) |