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
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[Homology]
Score
higAPossible antitoxin HigA; Antitoxin component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Upon expression in M.smegmatis neutralizes the effect of cognate toxin HigB1. Neutralization of HigB1 toxin in E.coli or M.marinum also requires SecB-like chaperone Rv1957, making this the first toxin-antitoxin chaperone (TAC) system. Antitoxin aggregation and degradation are prevented by the chaperone. (149 aa)    
Predicted Functional Partners:
secBL
Hypothetical protein; Chaperone component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Prevents antitoxin HigA1 aggregation in vitro at a 1:3 chaperone:antitoxin ratio, probably also protects antitoxin HigA1 from protease. Required for neutralization of toxin HigB1 upon ectopic expression in Mycobacterium marinum or E.coli. When expressed in E.coli complements a secB deletion, restores export of OmpA and MBP and inhibits aggregation of proOmpC although it is less efficient than endogenous SecB. Complements the general chaperone function of E.coli SecB less well; Belo [...]
  
 
 0.999
higB
Possible toxin HigB; Toxic component of an atypical, type II toxin-antitoxin chaperone (TAC) system. Upon expression in M.smegmatis inhibits colony formation and cell growth. Ectopic expression in wild-type M.tuberculosis has no effect on cell growth; ectopic expression in a triple higB1-higA1-Rv1957 (delta TAC) disruption mutant causes growth arrest, killing a considerable proportion of the cells. Increased ectopic expression leads to decreased levels of IdeR- and Zur-regulated genes as well as cleavage within the mRNA region of tmRNA (transfer-mRNA), strongly suggesting it is an endo [...]
  
 
 0.993
higA2
Transcriptional regulatory protein; Putative antitoxin component of a type II toxin-antitoxin (TA) system. Its cognate toxin would be HigB2.
 
  
 0.839
higB2
Conserved protein; Putative toxic component of a type II toxin-antitoxin (TA) system. Its cognate antitoxin would be HigA2. Belongs to the mycobacterial HigB family.
 
  
 0.784
PPE55
Rv3347c, (MTV004.03c), len: 3157 aa. PPE55, Member of the Mycobacterium tuberculosis PPE family, Gly-, Ala-,Asn-rich protein. Similar to many from Mycobacterium tuberculosis strains H37Rv and CDC1551, e.g. O50379|Rv3350c|MTV004.07c (3716 aa), FASTA scores: opt: 6497, E(): 0, (61.65% identity in 3756 aa overlap); and other upstream ORFs MTV004_5, MTY13E10_15, MTCY28_16,MTCY63_9, MTY13E10_17, MTCY180_1; etc. Predicted possible vaccine candidate (See Zvi et al., 2008).
  
    0.682
PPE56
Rv3350c, (MTV004.07c), len: 3716 aa. PPE56, Member of the Mycobacterium tuberculosis PPE family of Gly-, Ala-,Asn-rich proteins, similar to many Mycobacterium tuberculosis proteins from strains H37Rv and CDC1551, e.g. O50378|Rv3347c|MTV004.03c (3157 aa), FASTA scores: opt: 6497, E(): 0, (61.65% identity in 3756 aa overlap); MTCY28_16, MTV050_2, MTY13E10_17, MTCY63_10, MTCY180_1,MTCY63_9, MTV050_1, MTV014_3, MTY13E10_15; etc.
  
    0.677
PPE8
PPE family protein PPE8; Rv0355c, (MTCY13E10.15c, MTCY13E10.16c,MTCY13E10.17c), len: 3300 aa. PPE8, Member of the Mycobacterium tuberculosis PPE family, similar to others e.g. AL009198|MTV004_5 from Mycobacterium tuberculosis (3716 aa), FASTA scores: opt: 2906, E(): 0, (40.9% identity in 3833 aa overlap); MTV004_3 FASTA scores: (39.0% identity in 3531 aa overlap); etc. Gene contains large number of clustered Major Polymorphic Tandem Repeats (MPTR). Related to MTCY13E10.16c, E(): 0; MTCY13E10.17c, E(): 0; MTCY48.17,E(): 0; MTCY98.0034c, E(): 0; MTCY03C7.23 E(): 0; MTCY98.0031c, E(): 0; [...]
  
    0.675
Rv0836c
Hypothetical protein; Rv0836c, (MTV043.29c), len: 217 aa (start uncertain). Hypothetical unknown protein. This region is a possible MT-complex-specific genomic island (See Becq et al., 2007).
  
    0.669
Rv1004c
Probable membrane protein; Rv1004c, (MTCI237.20c), len: 419 aa. Probable membrane protein. Contains repetitive sequences, which have similarities with elastin, and possible N-terminal signal sequence.
 
    0.667
PPE5
Rv0304c, (MTCY63.9c), len: 2204 aa. PPE5, Member of the Mycobacterium tuberculosis PE family (PPE, MPTR),similar to others e.g. Z95324|MTY13E10_16 from Mycobacterium tuberculosis (1443 aa), FASTA scores: E(): 0,(50.6% identity in 1403 aa overlap); Y04H_MYCTU|Q10778 from Mycobacterium tuberculosis (734 aa), FASTA scores: opt: 989, E(): 0, (42.3% identity in 522 aa overlap). This region is a possible MT-complex-specific genomic island (See Becq et al., 2007).
  
    0.666
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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