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ahpD ahpD trxC trxC trxB2 trxB2 whiB4 whiB4 whiB3 whiB3 lpdA lpdA whiB2 whiB2 whiB1 whiB1 Rv3198A Rv3198A whiB7 whiB7 nrdH nrdH mpt53 mpt53 mtr mtr sthA sthA bcp bcp glbN glbN bcpB bcpB cydC cydC dsbF dsbF tpx tpx dlaT dlaT ahpE ahpE ahpC ahpC glbO glbO fgd1 fgd1 sodC sodC lpdC lpdC Rv0688 Rv0688 Rv0794c Rv0794c Rv1324 Rv1324 trxA trxA
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proteins of unknown 3D structure
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a 3D structure is known or predicted
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ahpDAlkyl hydroperoxide reductase D protein AhpD (alkyl hydroperoxidase D); Antioxidant protein with alkyl hydroperoxidase activity. Required for the reduction of the AhpC active site cysteine residues and for the regeneration of the AhpC enzyme activity. (177 aa)
trxCThioredoxin TrxC (TRX) (MPT46); Participates in various redox reactions through the reversible oxidation of its active center dithiol to a disulfide and catalyzes dithiol-disulfide exchange reactions. (116 aa)
trxB2Rv3913, (MT4032, MTV028.04), len: 335 aa. Probable trxB2, thioredoxin reductase (see citation below),equivalent to O30973|TRXB_MYCSM thioredoxin reductase from Mycobacterium smegmatis (311 aa), FASTA scores: opt: 1575,E(): 1.8e-87, (78.35% identity in 305 aa overlap); and highly similar, but shorter at C-terminus, to P46843|TRXB_MYCLE|TRXB/a|TRX|ML2703 bifunctional thioredoxin reductase/thioredoxin from Mycobacterium leprae (458 aa), FASTA scores: opt: 1766, E(): 8.7e-99, (83.25% identity in 328 aa overlap). Also highly similar to many e.g. P52215|TRXB_STRCO|SCH24.12 from Streptomyces [...] (335 aa)
whiB4Probable transcriptional regulatory protein WhiB-like WhiB4; Redox-responsive transcriptional regulator that regulates a set of genes involved in protection against environmental stresses encountered during infection. The loss of the O(2) and NO-responsive 4Fe-4S cluster and subsequent redox modifications of Cys residue thiols (possibly by disulfide bond formation) may activate its role in gene regulation. The thiol-oxidized apo-form binds in a sequence non- specific manner to GC-rich DNA, probably in the minor groove. Represses transcription of a number of genes including itself. The [...] (118 aa)
whiB3Transcriptional regulatory protein WhiB-like WhiB3. Contains [4FE-4S] cluster; A redox-sensitive transcriptional regulator. Maintains intracellular redox homeostasis by regulating catabolic metabolism and polyketide biosynthesis. Regulates expression of the redox buffer ergothioneine (ERG) in a carbon-source- dependent manner; loss of ERG or mycothiol (MSH, the other major redox buffer in this bacteria) leads to respiratory alterations and bioenergetic deficiencies that negatively impact virulence. In response to low external pH (like that found in host macrophage phagosomes) alters en [...] (102 aa)
lpdANAD(P)H quinone reductase LpdA; May contribute to virulence by increasing resistance to reactive oxygen intermediates. It can reduce 2,6-dimethyl-1,4- benzoquinone (DMBQ), 5-hydroxy-1,4-naphthaquinone (5-HNQ) and menadione. NADPH is the physiological reductant rather than NADH. (493 aa)
whiB2Probable transcriptional regulatory protein WhiB-like WhiB2; Acts as a transcriptional regulator. Probably redox- responsive. The apo- but not holo-form probably binds DNA (By similarity). (89 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)
Rv3198ARv3198A, len: 84 aa. Possible glutaredoxin protein, highly similar to Q9FCK1|2SC3B6.11c putative glutaredoxin-like protein from Streptomyces coelicolor (80 aa), FASTA scores: opt: 293, E(): 2.2e-14, (55.15% identity in 78 aa overlap); and Q9RSN9|DR2085 putative glutaredoxin from Deinococcus radiodurans (81 aa), FASTA scores: opt: 198, E(): 1.2e-07, (53.55% identity in 56 aa overlap). Also similar to several hypothetical bacterial proteins e.g. Q9X8C2|SCE36.09 hypothetical 13.0 KDA protein from Streptomyces coelicolor (114 aa), FASTA scores: opt: 181,E(): 2.6e-06, (44.45% identity in 72 [...] (84 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)
nrdHProbable glutaredoxin electron transport component of NRDEF (glutaredoxin-like protein) NrdH; Rv3053c, (MTCY22D7.29), len: 79 aa. Probable nrdH,glutaredoxin-like protein, equivalent to Q9CBP8|NRDH|ML1736 from Mycobacterium leprae (80 aa), FASTA scores: opt: 478,E(): 2.7e-27, (91.15% identity in 79 aa overlap), and similar to many glutaredoxin-like proteins e.g. Q9XD65|NRDH from Corynebacterium glutamicum (Brevibacterium flavum) (77 aa), FASTA scores: opt: 382, E(): 1.5e-20, (72.35% identity in 76 aa overlap); and Q56108|NRDH_SALTY from Salmonella typhimurium (81 aa), FASTA scores: opt: [...] (79 aa)
mpt53Soluble secreted antigen Mpt53 precursor; Disulfide oxidoreductase that catalyzes the oxidation of reduced, unfolded secreted proteins to form disulfide bonds. Despite a weak homology to thioredoxin this cannot serve as a substrate for thioredoxin reductase. (173 aa)
mtrNADPH-dependent mycothiol reductase Mtr; Catalyzes the NAD(P)H-dependent reduction of mycothione (the oxidized disulfide form of mycothiol) to mycothiol. Belongs to the class-I pyridine nucleotide-disulfide oxidoreductase family. (459 aa)
sthAProbable soluble pyridine nucleotide transhydrogenase; Conversion of NADPH, generated by peripheral catabolic pathways, to NADH, which can enter the respiratory chain for energy generation; Belongs to the class-I pyridine nucleotide-disulfide oxidoreductase family. (468 aa)
bcpProbable bacterioferritin comigratory protein Bcp; Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides and as sensor of hydrogen peroxide-mediated signaling events; Belongs to the peroxiredoxin family. BCP/PrxQ subfamily. (157 aa)
glbNHemoglobin GlbN; Binds oxygen cooperatively with very high affinity (P(50) = 0.013 mmHg at 20 degrees Celsius) because of a fast combination (25 microM(-1).s(-1)) and a slow dissociation (0.2 s(-1)) rate; Belongs to the truncated hemoglobin family. Group I subfamily. (136 aa)
bcpBProbable peroxidoxin BcpB; Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides and as sensor of hydrogen peroxide-mediated signaling events; Belongs to the peroxiredoxin family. BCP/PrxQ subfamily. (154 aa)
cydCRv1620c, (MTCY01B2.12c), len: 576 aa. Probable cydC,transmembrane ATP-binding protein ABC transporter involved in transport of component linked with the assembly of cytochrome (see citation below), similar to others e.g. CYDC_ECOLI|P23886 transport ATP-binding protein from Escherichia coli (573 aa), FASTA scores: opt: 631, E(): 1.6e-30, (28.5% identity in 569 aa overlap); C-terminal part of AL034355|SCD78_14 from Streptomyces coelicolor (1172 aa), FASTA scores: opt: 956, E(): 0, (38.8% identity in 554 aa overlap); etc. Contains (PS00211) ABC transporters family signature, and (PS00017) [...] (576 aa)
dsbFRv1677, (MTV047.12), len: 182 aa. Probable dsbF,conserved lipoprotein possibly involved in thiol:disulfide interchange. Highly similar to C-terminus of Z74024|MTCY274.09 mpt53 soluble secreted antigen precursor from Mycobacterium tuberculosis (173 aa), FASTA scores: opt: 482, E(): 3.6e-23, (52.8% identity in 142 aa overlap). Also some similarity to P52237|TIPB_PSEFL thiol:disulfide interchange protein TIPB precursor from Pseudomonas fluorescens (178 aa), FASTA scores: opt: 190, E(): 4.4e-05,(28.5% identity in 151 aa overlap); and P33926|DSBE_ECOLI thiol:disulfide interchange protein fr [...] (182 aa)
tpxProbable thiol peroxidase Tpx; Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. (165 aa)
dlaTDlaT, dihydrolipoamide acyltransferase, E2 component of pyruvate dehydrogenase; Component of the pyruvate dehydrogenase (PDH) complex, that catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). Appears to be essential for Mtb pathogenesis. (553 aa)
ahpEProbable peroxiredoxin AhpE; Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. May represent an important antioxidant defense against cytotoxic peroxides, especially peroxynitrite, which can be formed by activated macrophages during infection. Belongs to the peroxiredoxin family. AhpE subfamily. (153 aa)
ahpCAlkyl hydroperoxide reductase C protein AhpC (alkyl hydroperoxidase C); Thiol-specific peroxidase that catalyzes the reduction of hydrogen peroxide and organic hydroperoxides to water and alcohols, respectively. Plays a role in cell protection against oxidative stress by detoxifying peroxides. Together with AhpD, DlaT and Lpd, constitutes an NADH-dependent peroxidase active against hydrogen and alkyl peroxides as well as serving as a peroxynitrite reductase, thus protecting the bacterium against reactive nitrogen intermediates and oxidative stress generated by the host immune system. D [...] (195 aa)
glbOGlobin (oxygen-binding protein) GlbO; When expressed in E.coli and M.smegmatis, HbO increases oxygen uptake. Membrane vesicles of E.coli carrying HbO show a respiration activity about twice that of membranes without HbO. HbO seems to interact with a terminal oxidase. Therefore, HbO could participate in oxygen/electron-transfer process, suggesting a function related to the facilitation of oxygen transfer during aerobic metabolism of M.tuberculosis. (128 aa)
fgd1F420-dependent glucose-6-phosphate dehydrogenase Fgd1; Catalyzes the coenzyme F420-dependent oxidation of glucose 6- phosphate to 6-phosphogluconolactone. Appears to have a role in resistance to oxidative stress, via its consumption of G6P that serves as a source of reducing power to combat oxidative stress in mycobacteria. More precisely, is likely involved in a F420-dependent anti-oxidant mechanism that protects M.tuberculosis against oxidative stress and bactericidal agents. (336 aa)
sodCPeriplasmic superoxide dismutase [Cu-Zn] SodC; Destroys radicals which are normally produced within the cells and which are toxic to biological systems. May play a role in favoring mycobacterial survival in phagocytes (By similarity). (240 aa)
lpdCDihydrolipoyl dehydrogenase; Lipoamide dehydrogenase is an essential component of the alpha-ketoacid dehydrogenase complexes, namely the pyruvate dehydrogenase (PDH) complex, the branched-chain alpha-ketoacid dehydrogenase (BCKADH) complex, and likely also the 2-oxoglutarate dehydrogenase (ODH) complex. Catalyzes the reoxidation of dihydrolipoyl groups which are covalently attached to the lipoate acyltransferase components (E2) of the complexes. Is also able to catalyze the transhydrogenation of NADH and thio-NAD(+) in the absence of D,L- lipoamide, and the NADH-dependent reduction of [...] (464 aa)
Rv0688Rv0688, (MTCY210.05), len: 406 aa. Putative ferredoxin reductase, highly similar to others e.g. BAB55881.1|AB054975 ferredoxin reductase from Terrabacter sp. DBF63 (410 aa); CAC04223.1|AL391515 putative ferredoxin reductase from Streptomyces coelicolor (420 aa); PPU24215_8|Q51973 P-cumate dioxygenase ferredoxin reductase subunit from Pseudomonas putida (402 aa), FASTA scores: opt: 738, E(): 0, (38.8% identity in 330 aa overlap); etc. Also similar to Rv0253 and Rv1869c from Mycobacterium tuberculosis. Could belong to the bacterial type ferredoxin family. (406 aa)
Rv0794cRv0794c, (MTV042.04c), len: 499 aa. Probable oxidoreductase, possibly dihydrolipoamide dehydrogenase or mercuric reductase. Highly similar to CAB62675.1|AL133422 probable oxidoreductase from Streptomyces coelicolor (477 aa); and similar to various oxidoreductases e.g. P08663|MERA_STAAU mercuric reductase (HG(II) reductase) from Staphylococcus aureus (547 aa); AAK70920.1|AC087551_19|AC087551 putative lipoamide dehydrogenase from Oryza sativa (563 aa); NP_437349.1|NC_003078 putative FAD-dependent pyridine nucleotide-disulphide oxidoreductase, similar to mercuric reductases protein from S [...] (499 aa)
Rv1324Possible thioredoxin; Rv1324, (MTCY130.09), len: 304 aa. Possible thioredoxin, similar to several e.g. U00014|Q49716 TRXA from Mycobacterium leprae (255 aa), FASTA scores: opt: 1014, E(): 0, (69.7% identity in 228 aa overlap); THIO_RHOSH|P08058 TrxA from Rhodobacter sphaeroides (105 aa), FASTA scores: opt 196, E(): 1.9e-06, (33.0% identity in 103 aa overlap). Contains PS00339 Aminoacyl-transfer RNA synthetases class-II signature 2. A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al., 2004). (304 aa)
trxARv1470, (MTV007.17), len: 124 aa. Probable trxA,thioredoxin, similar to many e.g. P12243|THI1_SYNP7 thioredoxin 1 from Synechococcus sp. (106 aa), FASTA scores: opt: 201, E(): 9.2e-08, (35.4% identity in 99 aa overlap); etc. Highly similar to downstream ORF Rv1471|trxB1 probable thioredoxin from Mycobacterium tuberculosis (123 aa), FASTA scores: opt: 402, E(): 0,(54.4% identity in 114 aa overlap). Warning: note that Rv3914|MT4033|MTV028.05|trxC can be alternatively named trxA. (124 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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