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
ligBDNA ligase B; DNA ligase that seals nicks in double-stranded DNA during DNA replication, DNA recombination and DNA repair; Belongs to the ATP-dependent DNA ligase family. (507 aa)    
Predicted Functional Partners:
ligA
DNA ligase [NAD dependent] LigA (polydeoxyribonucleotide synthase [NAD+]); DNA ligase that catalyzes the formation of phosphodiester linkages between 5'-phosphoryl and 3'-hydroxyl groups in double- stranded DNA using NAD as a coenzyme and as the energy source for the reaction. It is essential for DNA replication and repair of damaged DNA; Belongs to the NAD-dependent DNA ligase family. LigA subfamily.
    
 0.993
polA
Probable DNA polymerase I PolA; In addition to polymerase activity, this DNA polymerase exhibits 3'-5' and 5'-3' exonuclease activity; Belongs to the DNA polymerase type-A family.
  
 0.901
dnaN
DNA polymerase III (beta chain) DnaN (DNA nucleotidyltransferase); Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP- independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta ch [...]
   
 0.892
lppK
Rv2116, (MTCY261.12), len: 189 aa. LppK, conserved lipoprotein, similar to many. Contains N-terminal signal sequence and PS00013 Prokaryotic membrane lipoprotein lipid attachment site. Some similarity to Rv2376c. A core mycobacterial gene; conserved in mycobacterial strains (See Marmiesse et al., 2004).
   
 0.892
mku
DNA end-binding protein, Mku; With LigD forms a non-homologous end joining (NHEJ) repair enzyme. Binds linear dsDNA with 5'- and 3'-overhangs but not closed circular dsDNA nor ssDNA. One dimer binds for every 30 bp. Recruits and stimulates the ligase activity of LigD but not of T4 ligase or a human ligase complex (LIG4/XRCC4). Attenuates the 3'- to 5'-exonuclease activity of LigD. Stimulates the template-directed addition of dNTPs by LigD on 5'-overhangs and nuclease activity on 3'-overhangs. Belongs to the prokaryotic Ku family.
 
  
 0.889
Rv2090
Probable 5'-3' exonuclease; 5'-3' exonuclease acting preferentially on double-stranded DNA.
 
 0.834
cstA
Probable carbon starvation protein A homolog CstA; Involved in peptide utilization. Belongs to the peptide transporter carbon starvation (CstA) (TC 2.A.114) family.
  
  
 0.787
dinP
DNA polymerase IV 2; Poorly processive, error-prone DNA polymerase involved in untargeted mutagenesis. Copies undamaged DNA at stalled replication forks, which arise in vivo from mismatched or misaligned primer ends. These misaligned primers can be extended by PolIV. Exhibits no 3'-5' exonuclease (proofreading) activity. May be involved in translesional synthesis, in conjunction with the beta clamp from PolIII (By similarity).
  
 
 0.781
fadE22
Rv3061c, (MTCY22D7.20), len: 721 aa. Probable fadE22, Acyl-CoA Dehydrogenase, similar to many e.g. AAK44503|MT0284 from Mycobacterium tuberculosis strain CDC1551 (731 aa), FASTA scores: opt: 1804, E(): 1.1e-101,(43.45% identity in 743 aa overlap); AAK48037|MT3678 from Mycobacterium tuberculosis strain CDC1551 (711 aa), FASTA scores: opt: 1630, E(): 3.9e-91, (42.55% identity in 733 aa overlap); and extensive similarity in C-terminal part to many acyl-CoA dehydrogenases e.g. Q9A5G9|CC2478 from Caulobacter crescentus (407 aa), FASTA scores: opt: 767,E(): 4.8e-39, (36.7% identity in 376 aa [...]
  
    0.771
Rv0269c
Rv0269c, (MTCY06A4.13c), len: 397 aa. Conserved hypothetical protein, highly similar to AL079355|SC4C6_19 hypothetical protein from Streptomyces coelicolor (341 aa),FASTA scores: opt: 1019, E(): 0, (46.5% identity in 344 aa overlap), and similar to other proteins e.g. CAC49016.1|AL603644 putative ATP-dependent DNA ligase protein from Sinorhizobium meliloti (636 aa); O34398 YKOU protein from Bacillus subtilis (611 aa), FASTA score: (27.2% identity in 283 aa overlap). Also similar to proteins from Mycobacterium tuberculosis e.g. Rv3062,Rv3731 (both DNA ligases), and Rv0938, Rv3730c.
  
 0.769
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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