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infB | Translation initiation factor IF-2; One of the essential components for the initiation of protein synthesis. May protect N-formylmethionyl-tRNA(fMet) from spontaneous hydrolysis. Promotes N-formylmethionyl-tRNA(fMet) binding to the 30S pre-initiation complex (PIC). Also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex. Upon addition of the 50S ribosomal subunit, IF-1, IF-2 and IF-3 are released leaving the mature 70S translation initiation complex. Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase fam [...] (890 aa) | ||||
pnp | Polynucleotide phosphorylase/polyadenylase; Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. Also involved, along with RNase II, in tRNA processing. RNases II and R contribute to rRNA degradation during starvation, while RNase R and PNPase are the major contributors to quality control of rRNA during steady state growth. (711 aa) | ||||
speC | Ornithine decarboxylase, constitutive; Ornithine decarboxylase isozyme; Protein involved in polyamine biosynthetic process. (711 aa) | ||||
pgk | Phosphoglycerate kinase; Protein involved in glycolysis and gluconeogenesis; Belongs to the phosphoglycerate kinase family. (387 aa) | ||||
argK | Membrane ATPase/protein kinase; Binds and hydrolyzes GTP. Likely functions as a G-protein chaperone that assists AdoCbl cofactor delivery to the methylmalonyl-CoA mutase (MCM) ScpA and reactivation of the enzyme during catalysis; Belongs to the SIMIBI class G3E GTPase family. ArgK/MeaB subfamily. (331 aa) | ||||
ygdH | UPF0717 family protein; Catalyzes the hydrolysis of the N-glycosidic bond of diverse pyrimidine and purine nucleotide 5'-monophosphates, to form ribose 5- phosphate and the corresponding free base. Can use AMP, GMP, IMP, CMP, dTMP and UMP as substrates. Cannot catalyze the reverse reactions. Is required for optimal growth in glucose minimal medium, possibly because it contributes to nucleoside pool homeostasis by degrading excess nucleotides and feeding back the ribose moiety to catabolism. (454 aa) | ||||
relA | (p)ppGpp synthetase I/GTP pyrophosphokinase; In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response which coordinates a variety of cellular activities in response to changes in nutritional abundance. This enzyme catalyzes the formation of pppGpp which is then hydrolyzed to form ppGpp. The second messengers ppGpp and c-di-GMP together control biofilm formation in response to translational stress; ppGpp represses biofilm formation while c-di-GMP induces it. ppGpp activates transcription of CsrA-antagonistic small RNAs CsrB and CsrC, which d [...] (744 aa) | ||||
cysN | Sulfate adenylyltransferase, subunit 1; May be the GTPase, regulating ATP sulfurylase activity. (475 aa) | ||||
hypB | GTP hydrolase involved in nickel liganding into hydrogenases; Involved in the maturation of [NiFe] hydrogenases. Required for nickel insertion into the metal center of the hydrogenase. Exhibits a low intrinsic GTPase activity, which is essential for nickel insertion. In the presence of GDP, nickel, but not zinc, is transferred from the HypB GTPase domain (G-domain) to HypA. Belongs to the SIMIBI class G3E GTPase family. HypB/HupM subfamily. (290 aa) | ||||
yfjP | CP4-57 prophage; Putative GTP-binding protein; To E.coli YkfA and YeeP. (287 aa) | ||||
ffh | Signal Recognition Particle (SRP) component with 4.5S RNA (ffs); Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Binds to the hydrophobic signal sequence of the ribosome-nascent chain (RNC) as it emerges from the ribosomes. The SRP-RNC complex is then targeted to the cytoplasmic membrane where it interacts with the SRP receptor FtsY. Interaction with FtsY leads to the transfer of the RNC complex to the Sec translocase for insertion into the membrane, the hydrolysis of GTP by both Ffh and FtsY, and the dissociation of the SRP-FtsY complex [...] (453 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) | ||||
lepA | Back-translocating elongation factor EF4, GTPase; Required for accurate and efficient protein synthesis under certain stress conditions. May act as a fidelity factor of the translation reaction, by catalyzing a one-codon backward translocation of tRNAs on improperly translocated ribosomes. Back-translocation proceeds from a post-translocation (POST) complex to a pre- translocation (PRE) complex, thus giving elongation factor G a second chance to translocate the tRNAs correctly. Binds to ribosomes in a GTP- dependent manner; Belongs to the TRAFAC class translation factor GTPase superfam [...] (599 aa) | ||||
era | Membrane-associated, 16S rRNA-binding GTPase; An essential GTPase that binds both GDP and GTP, with nucleotide exchange occurring on the order of seconds whereas hydrolysis occurs on the order of minutes. Plays a role in numerous processes, including cell cycle regulation, energy metabolism, as a chaperone for 16S rRNA processing and 30S ribosomal subunit biogenesis. One of at least 4 proteins (Era, RbfA, RimM and RsgA/YjeQ) that assist in the late assembly stage of the 30S ribosomal subunit. Its presence in the 30S subunit may prevent translation initiation. Seems to be critical for m [...] (301 aa) | ||||
der | GTPase; GTPase that plays an essential role in the late steps of ribosome biogenesis. GTPase point mutations (but not a deletion mutant) are suppressed by mild overexpression of RelA, probably due to increased levels of the stringent response mediator (p)ppGpp. 50S subunits assembled in the absence of Der are defective and unable to assemble into 70S ribosomes. GTPase activity is stimulated by YihI. Overexpression rescues an rrmJ deletion, stabilizing the 70S ribosome. Der and RrmJ are likely to share a mechanism to stabilize 50S ribosomal subunits at a very late stage of 50S subunit m [...] (490 aa) | ||||
guaB | IMP dehydrogenase; Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth. Belongs to the IMPDH/GMPR family. (488 aa) | ||||
ppx | Exopolyphosphatase; Degradation of inorganic polyphosphates (polyP). Releases orthophosphate processively from the ends of the polyP chain. Has a strong preference for long-chain polyphosphates and has only weak affinity for smaller size polyP of about 15 residues. (513 aa) | ||||
upp | Uracil phosphoribosyltransferase; Catalyzes the conversion of uracil and 5-phospho-alpha-D- ribose 1-diphosphate (PRPP) to UMP and diphosphate. (208 aa) | ||||
purC | Phosphoribosylaminoimidazole-succinocarboxamide synthetase = SAICAR synthetase; Protein involved in purine nucleotide biosynthetic process. (237 aa) | ||||
folC | Bifunctional folylpolyglutamate synthase/ dihydrofolate synthase; Functions in two distinct reactions of the de novo folate biosynthetic pathway. Catalyzes the addition of a glutamate residue to dihydropteroate (7,8-dihydropteroate or H2Pte) to form dihydrofolate (7,8-dihydrofolate monoglutamate or H2Pte-Glu). Also catalyzes successive additions of L-glutamate to tetrahydrofolate or 10- formyltetrahydrofolate or 5,10-methylenetetrahydrofolate, leading to folylpolyglutamate derivatives. (422 aa) | ||||
purF | Amidophosphoribosyltransferase; Catalyzes the formation of phosphoribosylamine from phosphoribosylpyrophosphate (PRPP) and glutamine. Can also use NH(3) in place of glutamine. (505 aa) | ||||
yeiR | Zn-stimulated GTPase involved in zinc homeostasis; Involved in metal homeostasis. Has GTPase activity. Binds several Zn(2+) ions in vitro. (328 aa) | ||||
folE | GTP cyclohydrolase I; Protein involved in folic acid biosynthetic process; Belongs to the GTP cyclohydrolase I family. (222 aa) | ||||
yegE | Putative diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules (By similarity). Involved in the control of the switch from cell motility to adhesion via regulation of cellular levels of c-di-GMP (Probable). 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 t [...] (1105 aa) | ||||
cpsB | Mannose-1-phosphate guanyltransferase; Involved in the biosynthesis of the capsular polysaccharide colanic acid. (478 aa) | ||||
gnd | 6-phosphogluconate dehydrogenase, decarboxylating; Catalyzes the oxidative decarboxylation of 6-phosphogluconate to ribulose 5-phosphate and CO(2), with concomitant reduction of NADP to NADPH. (468 aa) | ||||
cobU | Cobinamide kinase and cobinamide phosphate guanylyltransferase; Catalyzes ATP-dependent phosphorylation of adenosylcobinamide and addition of GMP to adenosylcobinamide phosphate. Belongs to the CobU/CobP family. (181 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) | ||||
yeaP | Diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. (341 aa) | ||||
yeaJ | Putative diguanylate cyclase; Catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. (496 aa) | ||||
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) | ||||
gdhA | Glutamate dehydrogenase, NADP-specific; Catalyzes the reversible oxidative deamination of glutamate to alpha-ketoglutarate and ammonia; Belongs to the Glu/Leu/Phe/Val dehydrogenases family. (447 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) | ||||
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) | ||||
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) | ||||
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) | ||||
gmr | cyclic-di-GMP phosphodiesterase; 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. PdeR acts as a trigger enzyme that connects modules I and II. It inhibits DgcM and MlrA by direct interaction. Inhibition is relieved when PdeR binds and degrades c-di-GMP generated by [...] (661 aa) | ||||
ribA | GTP cyclohydrolase II; Catalyzes the conversion of GTP to 2,5-diamino-6- ribosylamino-4(3H)-pyrimidinone 5'-phosphate (DARP), formate and pyrophosphate. (196 aa) | ||||
ychF | Catalase inhibitor protein; ATPase that binds to both the 70S ribosome and the 50S ribosomal subunit in a nucleotide-independent manner. Does not hydrolyze GTP; Belongs to the TRAFAC class OBG-HflX-like GTPase superfamily. OBG GTPase family. YchF/OLA1 subfamily. (363 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) | ||||
icd | Isocitrate dehydrogenase, specific for NADP+; Protein involved in tricarboxylic acid cycle and anaerobic respiration; Belongs to the isocitrate and isopropylmalate dehydrogenases family. (416 aa) | ||||
purB | Adenylosuccinate lyase; Protein involved in purine nucleotide biosynthetic process; Belongs to the lyase 1 family. Adenylosuccinate lyase subfamily. (456 aa) | ||||
cobB | Deacetylase of acs and cheY, chemotaxis regulator; NAD-dependent lysine deacetylase and desuccinylase that specifically removes acetyl and succinyl groups on target proteins. Modulates the activities of several proteins which are inactive in their acylated form. Activates the enzyme acetyl-CoA synthetase by deacetylating 'Lys-609' in the inactive, acetylated form of the enzyme. May also modulate the activity of other propionyl-adenosine monophosphate (AMP)-forming enzymes. Belongs to the sirtuin family. Class III subfamily. (242 aa) | ||||
ycdT | Diguanylate cyclase, membrane-anchored; Probably catalyzes the synthesis of cyclic-di-GMP (c-di-GMP) via the condensation of 2 GTP molecules. Overexpression leads to a strong repression of swimming; swimming returns to normal when residues 359-360 are both mutated to Ala. Overexpression also leads to a 20-fold increase in c-di-GMP levels in vivo. Cyclic-di-GMP is a second messenger which controls cell surface-associated traits in bacteria. (452 aa) | ||||
mukB | Chromosome condensin MukBEF, ATPase and DNA-binding subunit; Plays a central role in chromosome condensation, segregation and cell cycle progression. Functions as a homodimer, which is essential for chromosome partition. Involved in negative DNA supercoiling in vivo, and by this means organizes and compacts chromosomes. May achieve or facilitate chromosome segregation by condensation of DNA from both sides of a centrally located replisome during cell division. Stimulates both DNA relaxation and to a lesser extent decatenation activity of topoisomerase IV. (1486 aa) | ||||
cmk | Cytidylate kinase; ATP, dATP, and GTP are equally effective as phosphate donors. CMP and dCMP are the best phosphate acceptors. Belongs to the cytidylate kinase family. Type 1 subfamily. (227 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) | ||||
moaB | Inactive molybdopterin adenylyltransferase; May be involved in the biosynthesis of molybdopterin. Can bind GTP and has low GTPase activity. Can bind MPT, but has no MPT adenylyl transferase activity; Belongs to the MoaB/Mog family. (170 aa) | ||||
moaA | Molybdopterin biosynthesis protein A; Catalyzes, together with MoaC, the conversion of 5'-GTP to cyclic pyranopterin monophosphate (cPMP or molybdopterin precursor Z). (329 aa) | ||||
gpmA | Phosphoglyceromutase 1; Catalyzes the interconversion of 2-phosphoglycerate and 3- phosphoglycerate; Belongs to the phosphoglycerate mutase family. BPG- dependent PGAM subfamily. (250 aa) | ||||
gsk | Inosine-guanosine kinase; Protein involved in nucleobase, nucleoside and nucleotide interconversion. (434 aa) | ||||
yajQ | Phage Phi6 host factor, ATP/GTP binding protein; Binds nucleotides, may bind tRNA. (163 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) | ||||
ykfA | CP4-6 prophage; Putative GTP-binding protein; To E.coli YfjP and YeeP. (287 aa) | ||||
gpt | Xanthine phosphoribosyltransferase; Acts on guanine, xanthine and to a lesser extent hypoxanthine. (152 aa) | ||||
dksA | Transcriptional regulator of rRNA transcription; Transcription factor that acts by binding directly to the RNA polymerase (RNAP). Required for negative regulation of rRNA expression and positive regulation of several amino acid biosynthesis promoters. Also required for regulation of fis expression. Binding to RNAP disrupts interaction of RNAP with DNA, inhibits formation of initiation complexes, and amplifies effects of ppGpp and the initiating NTP on rRNA transcription. Inhibits transcript elongation, exonucleolytic RNA cleavage and pyrophosphorolysis, and increases intrinsic terminat [...] (151 aa) | ||||
hpt | Hypoxanthine phosphoribosyltransferase; Acts preferentially on hypoxanthine; has very low activity towards guanine. Inactive towards xanthine. Belongs to the purine/pyrimidine phosphoribosyltransferase family. (178 aa) | ||||
ftsZ | GTP-binding tubulin-like cell division protein; Essential cell division protein that forms a contractile ring structure (Z ring) at the future cell division site. The regulation of the ring assembly controls the timing and the location of cell division. One of the functions of the FtsZ ring is to recruit other cell division proteins to the septum to produce a new cell wall between the dividing cells. Binds GTP and shows GTPase activity. Polymerization and bundle formation is enhanced by CbeA. (383 aa) | ||||
obgE | GTPase involved in cell partioning and DNA repair; An abundant, essential GTPase which binds GTP, GDP and ppGpp with moderate affinity. Has high guanosine nucleotide exchange rate constants for GTP and GDP, and a relatively low GTP hydrolysis rate stimulated by the 50S ribosomal subunit. It is estimated there are 34000 molecules in log-phase cells and 5600 molecules in stationary- phase cells. Required for chromosome segregation. Plays a role in the stringent response, perhaps by sequestering 50S ribosomal subunits and decreasing protein synthesis , and a non-essential role in the late [...] (390 aa) | ||||
yhbJ | Adaptor protein for GlmZ/GlmY sRNA decay, glucosamine-6-phosphate-regulated; Modulates the synthesis of GlmS, by affecting the processing and stability of the regulatory small RNA GlmZ. When glucosamine-6- phosphate (GlcN6P) concentrations are high in the cell, RapZ binds GlmZ and targets it to cleavage by RNase E. Consequently, GlmZ is inactivated and unable to activate GlmS synthesis. Under low GlcN6P concentrations, RapZ is sequestered and inactivated by an other regulatory small RNA, GlmY, preventing GlmZ degradation and leading to synthesis of GlmS. Displays ATPase and GTPase acti [...] (284 aa) | ||||
tufA | Translation elongation factor EF-Tu 1; This protein promotes the GTP-dependent binding of aminoacyl- tRNA to the A-site of ribosomes during protein biosynthesis. Plays a stimulatory role in trans-translation; binds tmRNA. (Microbial infection) Upon infection by bacteriophage Qbeta, part of the viral RNA-dependent RNA polymerase complex. With EF-Ts may provide a stabilizing scaffold for the beta (catalytic) subunit. Helps separate the double-stranded RNA of the template and growing RNA during elongation. With the beta subunit helps form the exit tunnel for template RNA. (Microbial infe [...] (394 aa) | ||||
fusA | Protein chain elongation factor EF-G, GTP-binding; Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase f [...] (704 aa) | ||||
feoB | Ferrous iron transporter protein B and GTP-binding protein; Transporter of a GTP-driven Fe(2+) uptake system, probably couples GTP-binding to channel opening and Fe(2+) uptake. A guanine nucleotide-binding protein (G proteins) in which the guanine nucleotide binding site alternates between an active, GTP-bound state and an inactive, GDP- bound state. This protein has fast intrinsic GDP release, mediated by the G5 loop (about residues 149-158). Presumably GTP hydrolysis leads to conformational changes and channel closing. A GDP release mechanism involving a conformational change of the [...] (773 aa) | ||||
rtcB | RNA-splicing ligase; GTP-dependent RNA ligase that is involved in tRNA splicing and RNA repair. Joins RNA with 2',3'-cyclic-phosphate or 3'-phosphate ends to RNA with 5'-hydroxy ends. Also acts as a DNA ligase in case of DNA damage by splicing 'dirty' DNA breaks, characterized by 3'- phosphate (or cyclic-phosphate) and 5'-hydroxy ends that cannot be sealed by classical DNA ligases. (408 aa) | ||||
ftsY | Signal Recognition Particle (SRP) receptor; Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Acts as a receptor for the complex formed by the signal recognition particle (SRP) and the ribosome-nascent chain (RNC). Interaction with SRP-RNC leads to the transfer of the RNC complex to the Sec translocase for insertion into the membrane, the hydrolysis of GTP by both Ffh and FtsY, and the dissociation of the SRP-FtsY complex into the individual components. (497 aa) | ||||
bcsA | Cellulose synthase, catalytic subunit; Catalytic subunit of cellulose synthase. It polymerizes uridine 5'-diphosphate glucose to cellulose, which is produced as an extracellular component for mechanical and chemical protection at the onset of the stationary phase, when the cells exhibit multicellular behavior (rdar morphotype). Coexpression of cellulose and thin aggregative fimbriae (curli fimbrae or fibers) leads to a hydrophobic network with tightly packed cells embedded in a highly inert matrix that confers cohesion, elasticity and tissue-like properties to colonies ; Belongs to the [...] (872 aa) | ||||
bcsE | Cellulose production protein; Binds bis-(3'-5') cyclic diguanylic acid (c-di-GMP), the ability to bind c-di-GMP is important for its function ; Belongs to the BcsE family. (523 aa) | ||||
selB | selenocysteinyl-tRNA-specific translation factor; Translation factor necessary for the incorporation of selenocysteine into proteins. It probably replaces EF-Tu for the insertion of selenocysteine directed by the UGA codon. SelB binds GTP and GDP; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. SelB subfamily. (614 aa) | ||||
mnmE | tRNA U34 5-methylaminomethyl-2-thiouridine modification GTPase; Exhibits a very high intrinsic GTPase hydrolysis rate. Involved in the addition of a carboxymethylaminomethyl (cmnm) group at the wobble position (U34) of certain tRNAs, forming tRNA- cmnm(5)s(2)U34. (454 aa) | ||||
mobB | Molybdopterin-guanine dinucleotide biosynthesis protein B; GTP-binding protein that is not required for the biosynthesis of Mo-molybdopterin guanine dinucleotide (Mo-MGD) cofactor, and not necessary for the formation of active molybdoenzymes using this form of molybdenum cofactor. May act as an adapter protein to achieve the efficient biosynthesis and utilization of MGD. Displays a weak intrinsic GTPase activity. Is also able to bind the nucleotides ATP, TTP and GDP, but with lower affinity than GTP. (175 aa) | ||||
mobA | Molybdopterin-guanine dinucleotide synthase; Transfers a GMP moiety from GTP to Mo-molybdopterin (Mo-MPT) cofactor (Moco or molybdenum cofactor) to form Mo-molybdopterin guanine dinucleotide (Mo-MGD) cofactor. Is also involved in the biosynthesis of the bis-MGD form of the Moco cofactor (Mo-bisMGD) in which the metal is symmetrically ligated by the dithiolene groups of two MGD molecules. Is necessary and sufficient for the in vitro activation of the DMSOR molybdoenzyme that uses the Mo-bisMGD form of molybdenum cofactor, which implies formation and efficient insertion of the cofactor i [...] (194 aa) | ||||
yihA | Cell division GTP-binding protein; Necessary for normal cell division and for the maintenance of normal septation. Depletion of this protein leads to a severe reduction in growth rate and to extensive filamentation, with a block beyond the stage of segregation. Essential for bacteria survival. Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. EngB GTPase family. (210 aa) | ||||
typA | GTP-binding protein; A 50S ribosomal subunit assembly protein with GTPase and nucleotide-independent chaperone activity. Genetic and deletion evidence suggests this is involved in ribosome assembly at low temperatures; it may also affect translation (Probable). Involved in incorporation of ribosomal protein L6 into precursor 44S ribosomal particles at low temperatures. Also has chaperone activity which does not require nucleotides. Binds GDP, ppGpp and GDPCP (a nonhydrolyzable GTP analog) with similar affinity; the conformation of the protein does not significantly change upon nucleoti [...] (607 aa) | ||||
pfkA | 6-phosphofructokinase I; Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis; Belongs to the phosphofructokinase type A (PFKA) family. ATP-dependent PFK group I subfamily. Prokaryotic clade 'B1' sub- subfamily. (320 aa) | ||||
tufB | Translation elongation factor EF-Tu 2; This protein promotes the GTP-dependent binding of aminoacyl- tRNA to the A-site of ribosomes during protein biosynthesis. Plays a stimulatory role in trans-translation, binds tmRNA. (Microbial infection) Upon infection by bacteriophage Qbeta, part of the viral RNA-dependent RNA polymerase complex. With EF-Ts may provide a stabilizing scaffold for the beta (catalytic) subunit. Helps separate the double-stranded RNA of the template and growing RNA during elongation. With the beta subunit helps form the exit tunnel for template RNA. The GTPase acti [...] (394 aa) | ||||
crfC | Clamp-binding sister replication fork colocalization protein, dynamin-related; Important for the colocalization of sister nascent DNA strands after replication fork passage during DNA replication, and for positioning and subsequent partitioning of sister chromosomes. Does not have GTPase activity on its own; Belongs to the TRAFAC class dynamin-like GTPase superfamily. Dynamin/Fzo/YdjA family. (742 aa) | ||||
cadA | Lysine decarboxylase, acid-inducible; Inducible lysine decarboxylase that catalyzes the proton- dependent decarboxylation of L-lysine to produce the polyamine cadaverine and carbon dioxide. Plays a role in pH homeostasis by consuming protons and neutralizing the acidic by- products of carbohydrate fermentation. Belongs to the Orn/Lys/Arg decarboxylase class-I family. (715 aa) | ||||
rsgA | Ribosome small subunit-dependent GTPase A; One of at least 4 proteins (Era, RbfA, RimM and RsgA/YjeQ) that assist in the late maturation steps of the functional core of the 30S ribosomal subunit. Binds the 30S subunit contacting the head, platform, and rRNA helix 44, which may assist the last maturation stages. Removes RbfA from mature, but not immature 30S ribosomes in a GTP- dependent manner; 95% removal in the presence of GTP, 90% removal in GMP-PNP and 65% removal in the presence of GDP. Circulary permuted GTPase that catalyzes rapid hydrolysis of GTP with a slow catalytic turnover [...] (350 aa) | ||||
hflX | GTPase, stimulated by 50S subunit binding; GTPase that associates with the 50S ribosomal subunit and may have a role during protein synthesis or ribosome biogenesis. In vitro, also exhibits ATPase activity. (426 aa) | ||||
purA | Adenylosuccinate synthetase; Plays an important role in the de novo pathway of purine nucleotide biosynthesis. Catalyzes the first committed step in the biosynthesis of AMP from IMP; Belongs to the adenylosuccinate synthetase family. (432 aa) | ||||
mpl | UDP-N-acetylmuramate:L-alanyl-gamma-D-glutamyl- meso-diaminopimelate ligase; Reutilizes the intact tripeptide L-alanyl-gamma-D-glutamyl- meso-diaminopimelate by linking it to UDP-N-acetylmuramate. The enzyme can also use the tetrapeptide L-alanyl-gamma-D-glutamyl-meso-2,6- diaminoheptanedioyl-D-alanine or the pentapeptide L-alanyl-gamma-D- glutamyl-meso-2,6-diaminoheptandioyl-D-alanyl-D-alanine in vivo and in vitro; Belongs to the MurCDEF family. Mpl subfamily. (457 aa) | ||||
bdcA | c-di-GMP-binding biofilm dispersal mediator protein; Increases biofilm dispersal. Acts by binding directly to the signaling molecule cyclic-di-GMP, which decreases the intracellular concentration of cyclic-di-GMP and leads to biofilm dispersal. Also controls other biofilm-related phenotypes such as cell motility, cell size, cell aggregation and production of extracellular DNA and extracellular polysaccharides (EPS). Does not act as a phosphodiesterase. (237 aa) | ||||
mcrB | 5-methylcytosine-specific restriction enzyme McrBC, subunit McrB; Recognizes N4- and C5-methylcytosine (and 5-hydroxy- methylcytosines) produced by a broad range of DNA methylases and appears to act against 5-methylcytosine preceded by a purine residue. Binds to DNA containing methylated cytosines; also binds to GTP. Isoform 33 kDa is less active than isoform 51 kDa and may play a role in regulating the activity of isoform 51 kDa by competing with it in DNA and protein binding abilities. (459 aa) | ||||
yjiA | Metal-binding GTPase; Binds GTP and has low GTPase activity. May have a GTP- dependent regulatory function; Belongs to the SIMIBI class G3E GTPase family. CobW subfamily. (318 aa) | ||||
prfC | Peptide chain release factor RF-3; Increases the formation of ribosomal termination complexes and stimulates activities of RF-1 and RF-2. It binds guanine nucleotides and has strong preference for UGA stop codons. It may interact directly with the ribosome. The stimulation of RF-1 and RF-2 is significantly reduced by GTP and GDP, but not by GMP. (529 aa) |