STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
nirBRv0252, (MTV034.18), len: 853 aa. Probable nirB (alternate gene name: nasB), nitrite reductase [NAD(P)H] large subunit, flavoprotein containing siroheme and a 2FE-2S iron-sulfur centre. Highly similar to many others bacterial enzymes e.g. P08201|NIRB_ECOLI nitrite reductase (NAD(P)H) large subunit from Escherichia coli strain K12 (847 aa), FASTA scores: opt: 2775, E(): 0, (49.8% identity in 840 aa overlap); Q06458|NIRB_KLEPN nitrite reductase (NAD(P)H) large subunit (957 aa), FASTA scores: opt: 2902,E(): 0, (54.2% identity in 827 aa overlap). Contains PS00365 Nitrite and sulfite reduct [...] (853 aa)    
Predicted Functional Partners:
nirD
Rv0253, (MTV034.19), len: 118 aa. Probable nirD,nitrite reductase [NAD(P)H] small subunit, similar to others e.g. P23675|NIRD_ECOLI|B3366|Z4727|ECS4217 from Escherichia coli strains K12 and O157:H7 (108 aa), FASTA scores: opt: 271, E():1.7e-12, (41.9% identity in 105 aa overlap). Associates with NIRB|Rv0252.
 
 0.999
narU
Rv0267, (MTCY06A4.11), len: 463 aa. Probable narU,nitrite extrusion protein, integral membrane protein possibly member of major facilitator superfamily (MFS),similar to other nitrite extrusion proteins e.g. NARU_ECOLI|P37758 nitrite extrusion protein 2 from Escherichia coli (462 aa), FASTA scores: opt: 630, E(): 4.4e-33, (38.9% identity in 463 aa overlap); and NARK_ECOLI|P10903|B1223 nitrite extrusion protein 1 from Escherichia coli strain K12 (463 aa), FASTA scores: opt: 607, E(): 1.3e-31, (42.0% identity in 457 aa overlap). Also similar to Rv0261c, Rv2329c, Rv1737c, and to MLCB22_25 [...]
 
 
 0.976
narK2
Possible nitrate/nitrite transporter NarK2; Permits nitrate and nitrate transport into E.coli. Belongs to the major facilitator superfamily. Nitrate/nitrite porter (TC 2.A.1.8) family.
 
 
 0.975
narX
Probable nitrate reductase NarX; Does not seem to have nitrate reductase activity. In the N-terminal section; belongs to the nitrate reductase alpha subunit family. In the C-terminal section; belongs to the nitrate reductase gamma subunit family.
  
 
 0.973
narK3
Rv0261c, (MTCY06A4.05c), len: 469 aa. Probable nirK3, nitrite extrusion protein, integral membrane protein possibly member of major facilitator superfamily (MFS),equivalent to AAB41700.1|U72744 nitrite extrusion protein from Mycobacterium fortuitum (471 aa); and 2342627|CAB11406.1|Z98741|T44908 nitrite extrusion protein homolog from Mycobacterium leprae (517 aa; longer in N-terminus). Also similar to other nitrite extrusion proteins e.g. NARK_ECOLI|P10903|B1223 nitrite extrusion protein 1 from Escherichia coli strain K12 (463 aa), FASTA scores: opt: 755, E(): 0, (35.0% identity in 466 [...]
 
 
 0.971
narG
Respiratory nitrate reductase (alpha chain) NarG; The alpha chain is the actual site of nitrate reduction (Probable). Supports anaerobic growth of E.coli on glycerol in an E.coli mutant lacking endogenous nitrate reductase.
  
 
 0.970
narK1
Rv2329c, (MTCY3G12.05), len: 515 aa. Probable narK1,nitrite extrusion protein, possibly member of major facilitator superfamily (MFS). Equivalent to O32974|MLCB22.41c|nark|ML0844 putative nitrite extrusion protein from Mycobacterium leprae (517 aa), FASTA scores: opt: 2224, E(): 1.9e-129, (69.3% identity in 488 aa overlap). Also highly similar to others e.g. P94933 nitrite extrusion protein from Mycobacterium fortuitum (471 aa),FASTA scores: opt: 1969, E(): 8.6e-114, (62.1% identity in 459 aa overlap); P37758|NARU_ECOLI nitrite extrusion protein 2 from Escherichia coli strain K12 (462 [...]
 
 
 0.967
narH
Rv1162, (MTCI65.29), len: 558 aa. Probable narH,respiratory nitrate reductase beta chain. Similar to others e.g. NARH_BACSU|P42176 nitrate reductase beta chain from Bacillus subtilis (487 aa), FASTA scores: opt: 2049, E(): 0, (56.8% identity in 488 aa overlap); etc. Contains PS00190 cytochrome c family heme-binding site signature.
  
 
 0.965
glnA1
Glutamine synthetase GlnA1 (glutamine synthase) (GS-I); Involved in nitrogen metabolism via ammonium assimilation. Catalyzes the ATP-dependent biosynthesis of glutamine from glutamate and ammonia. Also able to use GTP. D-glutamate is a poor substrate, and DL-glutamate shows about 50% of the standard specific activity. Also plays a key role in controlling the ammonia levels within infected host cells and so contributes to the pathogens capacity to inhibit phagosome acidification and phagosome-lysosome fusion. Involved in cell wall biosynthesis via the production of the major component p [...]
    
 0.963
narI
Rv1164, (MTCI65.31), len: 246 aa. Probable narI,respiratory nitrate reductase gamma chain. Similar to others e.g. NARI_BACSU|P42177 nitrate reductase gamma chain from Bacillus subtilis (223 aa), FASTA scores: opt: 652,E(): 0; (41.6% identity in 221 aa overlap); etc. Highly similar to C-terminal part of Rv1736c|MTCY04C12.21c|NARX probable nitrate reductase (gamma chain) from Mycobacterium tuberculosis (68.6% identity in 239 aa overlap).
  
 
 0.954
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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