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espG3 espG3 PPE4 PPE4 esxG esxG esxH esxH eccD3 eccD3 iniB iniB iniA iniA iniC iniC groEL2 groEL2 icl1 icl1 Rv0804 Rv0804 cpdA cpdA rpfA rpfA Rv0998 Rv0998 prpR prpR prpD prpD prpC prpC mdh mdh Rv1265 Rv1265 Rv1319c Rv1319c cydA cydA cmr cmr rpmG1 rpmG1 eis eis rpfE rpfE ideR ideR esxR esxR esxS esxS devR devR whiB7 whiB7 whiB1 whiB1 Rv3645 Rv3645 acs acs crp crp esxB esxB esxA esxA
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
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a 3D structure is known or predicted
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espG3ESX-3 secretion-associated protein EspG3; Specific chaperone for cognate PE/PPE proteins. Plays an important role in preventing aggregation of PE/PPE dimers. (295 aa)
PPE4PPE family protein PPE4; Important for the siderophore-mediated iron-acquisition function of ESX-3; Belongs to the mycobacterial PPE family. (513 aa)
esxGESAT-6 like protein EsxG (conserved protein TB9.8); EsxG, in complex with EsxH, disrupts ESCRT function and impairs host phagosome maturation, thereby promoting intracellular bacterial growth. The complex acts by interacting, via EsxH, with the host hepatocyte growth factor-regulated tyrosine kinase substrate (HGS/HRS), a component of the ESCRT machinery. EsxG stabilizes EsxH in the host cytosol. (97 aa)
esxHLow molecular weight protein antigen 7 EsxH (10 kDa antigen) (CFP-7) (protein TB10.4); EsxH, in complex with EsxG, disrupts ESCRT function and impairs host phagosome maturation, thereby promoting intracellular bacterial growth. The complex acts by interacting, via EsxH, with the host hepatocyte growth factor-regulated tyrosine kinase substrate (HGS/HRS), a component of the ESCRT machinery. Belongs to the WXG100 family. ESAT-6 subfamily. (96 aa)
eccD3ESX-3 secretion system protein EccD3; Part of the ESX-3 specialized secretion system, which is important for iron and zinc uptake or homeostasis. (472 aa)
iniBRv0341, (MTCY13E10.01), len: 479 aa. IniB,isoniazid-inducible gene, (see citations below). Protein very Gly-, Ala-rich, similar to cell wall proteins e.g. P27483|GRP_ARATH glycine-rich cell wall structural protein from A.thaliana (338 aa), FASTA scores: opt: 532, E(): 5.2e-13, (39.3% identity in 321 aa overlap). MEME-mast analysis shows similarity to product of upstream gene,Rv0340. (479 aa)
iniAIsoniazid inductible gene protein IniA; Participates in the development of tolerance to both isoniazid and ethambutol. May function through a MDR-pump like mechanism, although it does not appear to directly transport isoniazid from the cell. (640 aa)
iniCRv0343, (MTCY13E10.03), len: 493 aa. IniC,isoniazid-inducible gene, (see citations below). Shows slight similarity to P40983|YOR6_THER8 hypothetical protein (402 aa), FASTA scores: opt: 196, E(): 2.6e-05, (25.9% identity in 228 aa overlap). Also some similarity to upstream ORF Rv0342|iniA. Contains (PS00017) ATP/GTP-binding site motif A (P-loop). Note that the iniA gene is also induced by the antibiotic ethambutol, an agent that inhibits cell wall biosynthesis by a mechanism that is distinct from isoniazid. (493 aa)
groEL260 kDa chaperonin 2; Prevents aggregation of substrate proteins and promotes their refolding. (540 aa)
icl1Isocitrate lyase Icl (isocitrase) (isocitratase); Involved in the persistence and virulence of M.tuberculosis. Catalyzes the reversible formation of succinate and glyoxylate from isocitrate, a key step of the glyoxylate cycle, which operates as an anaplerotic route for replenishing the tricarboxylic acid cycle during growth on fatty acid substrates. It could also catalyze the formation of pyruvate and succinate from 2-methylisocitrate, a key step in the methylcitrate cycle (propionate degradation route) (By similarity). (428 aa)
Rv0804Rv0804, (MTCY07H7A.05c), len: 209 aa. Conserved hypothetical protein, showing similarity with C-terminus of Rv1863c|MTCY359.10 conserved hypothetical protein from Mycobacterium tuberculosis (256 aa), FASTA scores: opt: 199, E(): 1.2e-05, (33.2% identity in 220 aa overlap); and Rv0658c. Contains PS01151 Fimbrial biogenesis outer membrane usher protein signature. (209 aa)
cpdAClass III cyclic nucleotide phosphodiesterase (cNMP PDE); Hydrolyzes cAMP to 5'-AMP. Plays an important regulatory role in modulating the intracellular concentration of cAMP, thereby influencing cAMP-dependent processes. Can also hydrolyze cGMP, p- nitrophenyl phosphate (pNPP), bis-(p-nitrophenyl phosphate) (bis(pNPP)), p-nitrophenyl phenylphosphonate (pNPPP) and 2',3'-cAMP. May play a role in pathogenicity, not only by hydrolyzing cAMP, but also by altering properties of the cell wall. (318 aa)
rpfAPossible resuscitation-promoting factor RpfA; Factor that stimulates resuscitation of dormant cells. Has peptidoglycan (PG) hydrolytic activity. Active in the pM concentration range. Has little to no effect on actively-growing cells. PG fragments could either directly activate the resuscitation pathway of dormant bacteria or serve as a substrate for endogenous Rpf, resulting in low molecular weight products with resuscitation activity. Stimulates growth of stationary phase M.bovis (a slow-growing Mycobacterium), reduces the lag phase of diluted fast-growers M.smegmatis and Micrococcus [...] (407 aa)
Rv0998Conserved hypothetical protein; Catalyzes specifically the acetylation of the epsilon-amino group of a highly conserved lysine residue in acetyl-CoA synthetase (ACS). This acetylation results in the inactivation of ACS activity and could be important for mycobacteria to adjust to environmental changes. (333 aa)
prpRProbable transcriptional regulator protein; Plays a key role in regulating expression of enzymes involved in the catabolism of short chain fatty acids (SCFA) via both the glyoxylate (acetyl degradation route) and the methylcitrate cycle (propionate degradation route). Required for intracellular growth in macrophages and for the assimilation of cholesterol-derived propionate. PrpR acts as a transcriptional activator of prpDC and icl genes when propionate is the main carbon source, and as a ramB repressor. During growth on propionate, PrpR also acts as a transcriptional repressor of dnaA [...] (486 aa)
prpDPossible methylcitrate dehydratase PrpD; Involved in the catabolism of short chain fatty acids (SCFA) via the tricarboxylic acid (TCA)(acetyl degradation route) and via the 2-methylcitrate cycle I (propionate degradation route). Catalyzes the dehydration of 2-methylcitrate (2-MC) to yield the cis isomer of 2- methyl-aconitate. Could also catalyze the dehydration of citrate and the hydration of cis-aconitate (By similarity). (526 aa)
prpCProbable methylcitrate synthase PrpC; Involved in the catabolism of short chain fatty acids (SCFA) via the tricarboxylic acid (TCA)(acetyl degradation route) and via the 2-methylcitrate cycle I (propionate degradation route). Catalyzes the Claisen condensation of propionyl-CoA and oxaloacetate (OAA) to yield 2-methylcitrate (2-MC) and CoA. Also catalyzes the condensation of oxaloacetate with acetyl-CoA. (393 aa)
mdhProbable malate dehydrogenase Mdh; Catalyzes the reversible oxidation of malate to oxaloacetate. Belongs to the LDH/MDH superfamily. MDH type 2 family. (329 aa)
Rv1265Unknown protein; Rv1265, (MTCY50.17c), len: 226 aa. Unknown protein (see citation below). (226 aa)
Rv1319cPossible adenylate cyclase (ATP pyrophosphate-lyase) (adenylyl cyclase); Rv1319c, (MTCY130.04c), len: 535 aa. Possible adenylate cyclase. Some similarity at the C-terminus to CYAA_RHIME|P19485 adenylate cyclase from Rhizobium meliloti (193 aa), FASTA scores: opt: 254, E(): 2.4e-10, (33.3% identity in 144 aa overlap); similar to other mycbacterium tuberculosis putative adenylate cyclases e.g. Rv1318c|MTCY130.03c (541 aa), FASTA scores: opt: 2505, E(): 0, (71.0% identity in 534 aa overlap); Rv1320c|MTCY130.05c (567 aa), FASTA scores: opt: 2354, E(): 0, (66.3% identity in 534 aa overlap). [...] (535 aa)
cydAIntegral membrane cytochrome D ubiquinol oxidase CydA; Rv1623c, (MTCY01B2.15c), len: 485 aa. Probable cydA (previously known as appC, but renamed cydA to conform with Mycobacterium smegmatis nomenclature), cytochrome D ubiquinol oxidase subunit I, integral membrane protein,similar to others e.g. P26459|APPC_ECOLI|CYXA|CBDA|B0978 cytochrome BD-II oxidase subunit I from Escherichia coli strain K12 (514 aa), FASTA scores: opt: 870, E(): 0, (35.9% identity in 485 aa overlap); AL034355|SCD78_12 from Streptomyces coelicolor (501 aa), FASTA scores: opt: 1099,E(): 0, (48.6% identity in 510 aa [...] (485 aa)
cmrProbable transcriptional regulatory protein Cmr; Positively regulates the expression of at least groEL2. Cyclic AMP does not affect transcription in vitro. (244 aa)
rpmG1Rv2057c, (MTCY63A.03), len: 54 aa. rpmG1, 50S ribosomal protein L33, similar to many. Note that previously known as rpmG; Belongs to the bacterial ribosomal protein bL33 family. (54 aa)
eisEnhanced intracellular survival protein Eis,GCN5-related N-acetyltransferase; Effector that is released into the host cell and affects host immune responses; it negatively modulates inflammation, macrophage autophagy, and cell death through redox-dependent signaling. Acts as an acetyltransferase. Acetylates 'Lys-55' of dual-specificity protein phosphatase 16 (DUSP16)/mitogen-activated protein kinase phosphatase-7 (MKP-7), a JNK- specific phosphatase; this leads to the inhibition of JNK-dependent autophagy, phagosome maturation, and ROS (reactive oxygen species) generation for enhanced [...] (402 aa)
rpfEProbable resuscitation-promoting factor RpfE; Factor that stimulates resuscitation of dormant cells. Has peptidoglycan (PG) hydrolytic activity. Active in the pM concentration range. Has little to no effect on actively-growing cells. PG fragments could either directly activate the resuscitation pathway of dormant bacteria or serve as a substrate for endogenous Rpf, resulting in low molecular weight products with resuscitation activity. Belongs to the transglycosylase family. Rpf subfamily. (172 aa)
ideRIron-dependent repressor and activator IdeR; Metal-dependent DNA-binding protein that controls transcription of many genes involved in iron metabolism. Acts as a repressor of siderophore biosynthesis and as a positive modulator of iron storage. Also regulates expression of transporters, proteins involved in siderophore synthesis, iron storage and transcriptional regulators. (230 aa)
esxRRv3019c, (MT3104, MTV012.33c), len: 96 aa. EsxR,secreted ESAT-6 like protein (see citations below), most similar to O53693|AAK44525|Rv0288|CFP7|MT0301|MTV035.16 10 KDA antigen CFP7 (low molecular weight protein antigen 7) (CFP-7) from Mycobacterium tuberculosis (95 aa), FASTA scores: opt: 566, E(): 5.1e-31, (84.3% identity in 95 aa overlap). Also similar to Q9CD33|ML2531 possible cell surface protein from Mycobacterium leprae (96 aa), FASTA scores: opt: 472, E(): 8.3e-25, (66.6% identity in 96 aa overlap); O53264|Rv3017c|MTV012.31c putative secreted antigen from Mycobacterium tuberculo [...] (96 aa)
esxSRv3020c, (MTV012.34c), len: 97 aa. EsxS, ESAT-6 like protein. PE-family related protein; distant member of the Mycobacterium tuberculosis PE family, similar to AAK44524|MT0300 PE family protein from M. tuberculosis strain CDC1551 (97 aa), FASTA scores: opt: 564, E(): 5.9e-30, (91.75% identity in 97 aa overlap). Has potential helix-turn-helix motif at positions 14-35. Seems to belong to the ESAT6 family (see Betts et al., 2002). Note that previously known as PE28. A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al.,2004). (97 aa)
devRTwo component transcriptional regulatory protein DevR (probably LuxR/UhpA-family); Member of the two-component regulatory system DevR/DevS (also called DosR/DosS) involved in onset of the dormancy response. Regulates an approximately 48-member regulon. When phosphorylated binds and activates the promoter of DevR regulon genes in response to hypoxia. The presence of target DNA increases stability of phospho-DevR in vitro. Activates its own transcription under hypoxic but not aerobic conditions, probably binds as a dimer to tandem binding sites within the devR and hspX promoters. Accepts [...] (217 aa)
whiB7Probable transcriptional regulatory protein WhiB-like WhiB7; The apo- but not holo-form probably binds DNA (By similarity). Acts as a transcriptional regulator. Probably redox- responsive. Upon overproduction at least 10 other genes are up- regulated, among them are Rv1258c, Rv1988, Rv2301, Rv2416c, Rv2725c and whiB7 itself. Probably redox-responsive. The apo-form has been shown to act as a protein disulfide reductase. (92 aa)
whiB1Transcriptional regulatory protein WhiB-like WhiB1. Contains [4FE-4S]2+ cluster; Acts as a transcriptional repressor, inhibiting expression in vitro. Probably redox-responsive. The apo- but not holo-form binds to its own promoter as well as that of groEL2. Oxidized apo-form and nitrosylated holo-form also bind DNA. The apo-form has been shown to act as a protein disulfide reductase , but also not to act as a protein disulfide reductase. (84 aa)
Rv3645Rv3645, (MTCY15C10.07c), len: 549 aa. Probable conserved transmembrane protein, equivalent, but longer 20 aa, to O69547|ML0201|MLCB2548.30 putative membrane protein from Mycobacterium leprae (530 aa), FASTA scores: opt: 2958, E(): 1.5e-168, (85.5% identity in 530 aa overlap). Also closely related to several other hypothetical M. tuberculosis proteins, e.g. Q10631|YD18_MYCTU|Rv1318c|MT1359|MTCY130.03c (541 aa) FASTA scores: opt: 1105, E(): 2.7e-58, (39.35% identity in 506 aa overlap); Q10633|YD20_MYCTU|Rv1320c|MT1362|MTCY130.05c (567 aa) FASTA scores: opt: 1031, E(): 7.1e-54, (38.1% ide [...] (549 aa)
acsAcetyl-coenzyme A synthetase; Catalyzes the conversion of acetate into acetyl-CoA (AcCoA), an essential intermediate at the junction of anabolic and catabolic pathways. AcsA undergoes a two-step reaction. In the first half reaction, AcsA combines acetate with ATP to form acetyl-adenylate (AcAMP) intermediate. In the second half reaction, it can then transfer the acetyl group from AcAMP to the sulfhydryl group of CoA, forming the product AcCoA. M.tuberculosis may use AcsA for both acetate and propionate assimilation; Belongs to the ATP-dependent AMP-binding enzyme family. (651 aa)
crpTranscriptional regulatory protein Crp (Crp/Fnr-family); Global transcriptional regulator that complexes with cAMP and binds to specific DNA promoter sites, causing DNA-bending, to regulate transcription. cAMP improves binding to specific DNA sequences, probably by altering protein conformation. The CRP regulon is predicted to contain about 115 genes. Some genes are activated by CRP (rpfA, whiB1) while others are repressed (fadD10). There are 2 CRP-binding sites in the promoter of whiB1, at low concentrations of CRP with or without cAMP transcription of whiB1 is enhanced via site CRP1, [...] (224 aa)
esxB10 kDa culture filtrate antigen EsxB (LHP) (CFP10); A secreted protein. Acts as a strong host (human) T-cell antigen. Involved in translocation of bacteria from the host (human) phagolysosome to the host cytoplasm. Might serve as a chaperone to prevent uncontrolled membrane lysis by its partner EsxA; native protein binds poorly to artificial liposomes in the absence or presence of EsxA. EsxA and EsxA-EsxB are cytotoxic to pneumocytes. EsxB (and EsxA-EsxB but not EsxA alone) activates human neutrophils; EsxB transiently induces host (human) intracellular Ca(2+) mobility in a dose-depend [...] (100 aa)
esxA6 kDa early secretory antigenic target EsxA (ESAT-6); A secreted protein that plays a number of roles in modulating the host's immune response to infection as well as being responsible for bacterial escape into the host cytoplasm. Acts as a strong host (human) T-cell antigen. Inhibits IL- 12 p40 (IL12B) and TNF-alpha expression by infected host (mouse) macrophages, reduces the nitric oxide response by about 75%. In mice previously exposed to the bacterium, elicits high level of IFN-gamma production by T-cells upon subsequent challenge by M.tuberculosis, in the first phase of a protecti [...] (95 aa)
Your Current Organism:
Mycobacterium tuberculosis H37Rv
NCBI taxonomy Id: 83332
Other names: M. tuberculosis H37Rv, Mycobacterium sp. H37Rv, Mycobacterium tuberculosis str. H37Rv, Mycobacterium tuberculosis strain H37Rv
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