Table 2.

Properties of putative sfp gene products and comparison to the corresponding Pap proteinsa

ProteinMolecular mass overall (kDa)Signal peptide (amino acids)cMolecular mass of mature protein (kDa)pI of mature proteinG+C content of respective gene (%)
SfpA17.9 [18.7]2015.9 [16.6]4.93 [4.72]41.9 [44.1]
SfpH21.3 [21.8]1919.1 [19.3]7.17 [5.36]53.2 [48.8]
SfpC91.9 [91.1]2789.1 [88.3]6.08 [5.92]56.1 [52.5]
SfpD26.9 [26.8]2624.2 [24.6]9.72 [9.01]47.7 [45.6]
SfpJ21.1 [20.7]2019.1 [17.8]4.80 [7.11]40.2 [55.5]
SfpFb 9.3 [17.6]None34.5 [42.9]
SfpG36.2 [38.3]2233.5 [35.9]5.52 [5.59]36.0 [38.3]
  • a Numbers in brackets indicate values for the corresponding pap protein.

  • b Translated starting from the first ATG codon of the putative nonfunctional sfpF gene; see the text for further details.

  • c Predicted using the method of von Heijne (60).