STRING 9.05 
There are several matches for 'P27840'.
Please select one from the list below and press Continue to proceed.
 
  
 
 organism  protein 
 Escherichia coli K12_MG1655 
yigE - predicted protein
 Escherichia coli BW2952 
yigE - hypothetical protein
 Escherichia coli K12_DH10B 
yigE - hypothetical protein
 Escherichia coli K12_W3110 
yigE - hypothetical protein