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
ponA1Penicillin-insensitive transglycosylase; Cell wall formation. Synthesis of cross-linked peptidoglycan from the lipid intermediates. The enzyme has a penicillin-insensitive transglycosylase N-terminal domain (formation of linear glycan strands) and a penicillin-sensitive transpeptidase C-terminal domain (cross- linking of the peptide subunits) (By similarity). Has little peptidoglycan hydrolytic activity; however it inhibits the synergistic peptidoglycan hydrolysis of RipA plus RpfB. (678 aa)    
Predicted Functional Partners:
wag31
Diviva family protein Wag31; Important for maintaining cell shape and cell wall integrity by localizing peptidoglycan synthesis to the cell poles. Protects PbpB (PBP3, FtsI) from oxidative stress-induced cleavage.
  
 
 0.920
Rv0051
Probable conserved transmembrane protein; Rv0051, (MTCY21D4.14), len:560 aa. Predicted to be in the GT-C superfamily of glycosyltransferases (See Liu and Mushegian, 2003). Probable conserved transmembrane protein.
  
    0.908
dacB1
Rv3330, (MTV016.30), len: 405 aa. Probable dacB1,D-alanyl-D-alanine carboxypeptidase (penicillin-binding protein), equivalent to Mycobacterium leprae proteins Q9CCM2|ML0691 putative D-alanyl-D-alanine carboxypeptidase (411 aa), FASTA scores: opt: 2066, E(): 2.5e-102, (77.15% identity in 416 aa overlap); Q49917|L308_F1_36 (228 aa),FASTA scores: opt: 1241, E(): 7.9e-59, (78.9% identity in 232 aa overlap) (note that this protein corresponds to C-terminal part of the putative protein encoded by Rv3330,aa 174-405); and Q49921|PBPC (182 aa), FASTA scores: opt: 736, E(): 3.7e-32, (73.95% iden [...]
 
 
 0.886
Rv2864c
Rv2864c, (MTV003.10c), len: 603 aa. Possible penicillin-binding lipoprotein, probably located in periplasm, equivalent to Q9CBU6|ML1577 probable penicillin binding protein from Mycobacterium leprae (608 aa), FASTA scores: opt: 3352, E(): 2.1e-193, (81.5% identity in 606 aa overlap). Also shows some similarity to others e.g. P72405|PCBR from Streptomyces clavuligerus (551 aa), FASTA scores: opt: 543, E(): 6.1e-25, (28.4% identity in 567 aa overlap); Q9F2L0|SCH63.18c from Streptomyces coelicolor (546 aa), FASTA scores: opt: 519, E(): 1.7e-23, (29.3% identity in 577 aa overlap); Q9RKD1|SC [...]
 
 
 0.880
pbpA
Probable penicillin-binding protein PbpA; Cell wall formation. Plays an important role in cell division and cell shape maintenance by cross-linking adjacent peptidoglycan chains through transpeptidation; Belongs to the transpeptidase family.
 
0.875
dacB2
Rv2911, (MTCY274.43), len: 291 aa. Probable dacB2,D-alanyl-D-alanine carboxypeptidase (penicillin-binding protein), an ala-rich protein. Highly similar (except in N-terminus) to Q9CCM2|ML0691 putative D-alanyl-D-alanine carboxypeptidase from Mycobacterium leprae (411 aa), FASTA scores: opt: 749, E(): 9.3e-39, (46.75% identity in 276 aa overlap). Also similar to penicillin binding proteins / D-alanyl-D-alanine carboxypeptidases e.g. Q9KCJ8|SC4G1.16c D-alanyl-D-alanine carboxypeptidase from Streptomyces coelicolor (382 aa), FASTA scores: opt: 386, E(): 2.1e-16,(31.25% identity in 285 aa [...]
 
 
 0.872
Rv0613c
Unknown protein; Rv0613c, (MTCY19H5.08), len: 855 aa. Unknown protein. Contains a very short region with strong similarity to several preprotein translocases e.g. P47847|SECA_LISMO preprotein translocase seca subunit (836 aa), FASTA scores: opt: 138, E(): 0.18, (38.6% identity in 70 aa overlap, and 72.7% identity in 22 aa overlap). This region is a possible MT-complex-specific genomic island (See Becq et al., 2007).
  
  
 0.837
ldtB
Probable L,D-transpeptidase LdtB; Generates 3->3 cross-links in peptidoglycan, catalyzing the cleavage of the mDap(3)-D-Ala(4) bond of a tetrapeptide donor stem and the formation of a bond between the carbonyl of mDap(3) of the donor stem and the side chain of mDap(3) of the acceptor stem. Is specific for donor substrates containing a stem tetrapeptide since it cannot use pentapeptide stems.
   
 
 0.835
ponA2
PASTA domain-containing protein; Rv3682, (MTV025.030), len: 810 aa. Probable ponA2,penicillin-binding protein (class A), bienzymatic membrane-associated protein with transglycosylase and transpeptidase activities. Almost identical to Q9CB85|PON1|ML2308 penicillin binding protein (class A) from Mycobacterium leprae (803 aa) FASTA scores: opt: 4743,E(): 3.3e-217, (87.7% identity in 806 aa overlap); or P72351|PON1|PBP1 high-molecular-mass class a penicillin binding protein from Mycobacterium leprae Cosmid B577 (821 aa), FASTA scores: opt: 4547, E(): 6.3e-208, (88.05% identity in 769 aa ov [...]
 
 
0.835
pbpB
Probable penicillin-binding membrane protein PbpB; Synthesis of cross-linked peptidoglycan from the lipid intermediates; Belongs to the transpeptidase family.
 
 
 0.813
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
Server load: low (20%) [HD]
STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.