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
dphBDiphthine synthase (dph5); S-adenosyl-L-methionine-dependent methyltransferase that catalyzes the trimethylation of the amino group of the modified target histidine residue in translation elongation factor 2 (EF-2), to form an intermediate called diphthine. The three successive methylation reactions represent the second step of diphthamide biosynthesis. (257 aa)    
Predicted Functional Partners:
fusA
Translation elongation factor EF-2; Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome (By similarity); Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase [...]
  
 
 0.992
dph2
Conserved hypothetical protein; Catalyzes the first step of diphthamide biosynthesis, i.e. the transfer of the 3-amino-3-carboxypropyl group from S-adenosyl-L- methionine (SAM) to the C2 position of the imidazole ring of the target histidine residue in translation elongation factor 2 (EF-2). Belongs to the DPH1/DPH2 family.
  
 0.927
MJ_0570
Conserved hypothetical protein; Similar to PID:1256896 PID:1256896 PID:1360566 percent identity: 35.35; identified by sequence similarity; putative.
 
 
 0.894
trm5b
Conserved hypothetical protein; Specifically methylates the N1 position of guanosine-37 in various tRNAs.
 
  
 0.691
MJ_1275
NA(+)/H(+) antiporter (napA); This is probably a Na(+)/H(+) antiporter; Belongs to the monovalent cation:proton antiporter 1 (CPA1) transporter (TC 2.A.36) family.
       0.599
MJ_1136
Conserved hypothetical protein; tRNA uridine(34) acetyltransferase, which mediates formation of carboxymethyluridine in the wobble base at position 34 in tRNAs. The proposed mechanism is the following: (i) recruits S-adenosyl-L- methionine and cleaves it to generate a 5'-deoxyadenosine radical (5'- dA) in the radical S-adenosyl-L-methionine (rSAM) region, (ii) hydrolyzes acetyl-CoA in the N-acetyltransferase domain and (iii) an acetyl radical is formed by the products of the two domains and (iv) is transferred onto the C5 position of uridine(34) in the bound tRNA molecule. Does not sho [...]
  
  
 0.597
MJ_1326
GTP-binding protein, member of GTP1/OBG-family; Similar to SP:P17103 PID:43450 percent identity: 50.68; identified by sequence similarity; putative; Belongs to the TRAFAC class OBG-HflX-like GTPase superfamily. OBG GTPase family.
  
    0.588
rtcA
Hypothetical protein; Catalyzes the conversion of 3'-phosphate to a 2',3'-cyclic phosphodiester at the end of RNA. The mechanism of action of the enzyme occurs in 3 steps: (A) adenylation of the enzyme by ATP; (B) transfer of adenylate to an RNA-N3'P to produce RNA-N3'PP5'A; (C) and attack of the adjacent 2'-hydroxyl on the 3'-phosphorus in the diester linkage to produce the cyclic end product. The biological role of this enzyme is unknown but it is likely to function in some aspects of cellular RNA processing (By similarity).
   
  
 0.585
rps4e
SSU ribosomal protein S4E; Similar to SP:P14023 PID:44760 percent identity: 70.49; identified by sequence similarity; putative; Belongs to the eukaryotic ribosomal protein eS4 family.
  
    0.572
rio2
Conserved hypothetical protein; Similar to SP:P40160 PID:1302211 PID:600058 percent identity: 34.52; identified by sequence similarity; putative; Belongs to the protein kinase superfamily. RIO-type Ser/Thr kinase family.
  
    0.571
Your Current Organism:
Methanocaldococcus jannaschii
NCBI taxonomy Id: 243232
Other names: M. jannaschii DSM 2661, Methanocaldococcus jannaschii DSM 2661, Methanocaldococcus jannaschii str. DSM 2661, Methanococcus jannaschii DSM 2661
Server load: medium (42%) [HD]