Exodeoxyribonuclease I - P04995 (EX1_ECOLI)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P04995: 12
Degrades single-stranded DNA (ssDNA) in a highly processive manner (PubMed:23609540). Also functions as a DNA deoxyribophosphodiesterase that releases deoxyribose-phosphate moieties following the cleavage of DNA at an apurinic/apyrimidinic (AP) site by either an AP endonuclease or AP lyase (PubMed:1329027). (data source: UniProt  )
Catalytic Activity

Exonucleolytic cleavage in the 3'- to 5'-direction to yield nucleoside 5'-phosphates.

(data source: UniProt  )
Subunit structure
Monomer (PubMed:23609540). Interacts with ssb (via C-terminus); this interaction stimulates the exonuclease activity by recruiting the enzyme to its substrate (PubMed:18591666, PubMed:20018747). (data source: UniProt  )
The N-terminal exonuclease domain and the exonuclease C-terminal domain form a central positively charged groove which binds the DNA. (data source: UniProt  )
Other Gene names: sbcB cpeA xonA b2011 JW1993
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The vertical color bar on the left side indicates data provenance.
Data in green originates from UniProtKB  
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
Data in red indicates combined ranges of Homology Models from SBKB   and the Protein Model Portal  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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