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dinB-3 dinB-3 recA recA dnaN dnaN lexA lexA dnaE2 dnaE2 polA polA ABK70918.1 ABK70918.1 ligD-2 ligD-2 ABK75344.1 ABK75344.1 recQ recQ uvrB uvrB
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
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Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
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textmining
co-expression
protein homology
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dinB-3DNA polymerase IV 1; 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. (463 aa)    
Predicted Functional Partners:
recA
Protein RecA; Required for homologous recombination (HR) and the bypass of mutagenic DNA lesions (double strand breaks, DSB) by the SOS response. Can catalyze the hydrolysis of ATP in the presence of single-stranded DNA, the ATP-dependent uptake of single-stranded DNA by duplex DNA, and the ATP-dependent hybridization of homologous single-stranded DNAs. Numerous X-ray crystals have been resolved under different conditions which indicate the flexibility of the protein, essential to its function. Gln-196 contributes to this plasticity by acting as a switch residue, which transmits the ef [...]
  
 0.981
dnaN
DNA polymerase III, beta subunit; 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 chain is required for initiation of [...]
  
 0.967
lexA
LexA repressor; Represses a number of genes involved in the response to DNA damage (SOS response), including recA and lexA. In the presence of single-stranded DNA, RecA interacts with LexA causing an autocatalytic cleavage which disrupts the DNA-binding part of LexA, leading to derepression of the SOS regulon and eventually DNA repair.
 
 
 0.952
dnaE2
DNA polymerase III, alpha subunit, putative; DNA polymerase involved in damage-induced mutagenesis and translesion synthesis (TLS). It is not the major replicative DNA polymerase.
 
  
 0.931
polA
DNA polymerase I; In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity; Belongs to the DNA polymerase type-A family.
  
 0.918
ABK70918.1
Transcriptional regulator, Ada family protein/DNA-3-methyladenine glycosylase II; Identified by match to protein family HMM PF00165; match to protein family HMM PF00730; match to protein family HMM PF02805; match to protein family HMM PF06029.
  
 
 0.848
ligD-2
DNA ligase; With Ku forms a non-homologous end joining (NHEJ) repair enzyme which repairs blunt-end and 5'-overhang DNA double strand breaks (DSB) with about 50% fidelity, and DSB with non-complementary 3' ends. Plays a partial role in NHEJ during 3'-overhang repair. NHEJ repairs DSB with blunt ends and 5' overhangs with a high level of nucleotide insertion/deletion, without a need for microhomology. Acts as a DNA ligase on singly nicked dsDNA, as a DNA-directed DNA polymerase on 5' overhangs, and adds non-templated nucleotides to 3' overhangs (terminal transferase). Fills in gaps in d [...]
  
 
 0.767
ABK75344.1
DNA polymerase III subunit epsilon; Identified by match to protein family HMM PF00929; match to protein family HMM TIGR00573.
  
  
 0.716
recQ
ATP-dependent DNA helicase RecQ; Identified by match to protein family HMM PF00271.
  
 0.673
uvrB
Excinuclease ABC, B subunit; The UvrABC repair system catalyzes the recognition and processing of DNA lesions. A damage recognition complex composed of 2 UvrA and 2 UvrB subunits scans DNA for abnormalities. Upon binding of the UvrA(2)B(2) complex to a putative damaged site, the DNA wraps around one UvrB monomer. DNA wrap is dependent on ATP binding by UvrB and probably causes local melting of the DNA helix, facilitating insertion of UvrB beta-hairpin between the DNA strands. Then UvrB probes one DNA strand for the presence of a lesion. If a lesion is found the UvrA subunits dissociate [...]
  
  
 0.671
Your Current Organism:
Mycolicibacterium smegmatis
NCBI taxonomy Id: 246196
Other names: M. smegmatis MC2 155, Mycobacterium smegmatis MC2 155, Mycolicibacterium smegmatis MC2 155
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