Table 1. Characteristics of porin candidates from T. maritima as compared to those of known porins.
Protein/ORF* | Molecular Weight (kD) | Signal peptide | β Strand content (%)‡ | Globularity | Porin C-terminus |
OmpCE | 40.38 | + | 29.16/33 | + | + |
OmpFEc | 39.36 | + | 28.45/33 | + | + |
PhoEEc | 38.93 | + | 23.93/36 | + | + |
ScrYSe | 55.11 | + | 18.42/22 | + | + |
ScrYYe | 56.70 | + | 17.77/24 | + | + |
TM0153 | 70.74 | – | 23.11/23 | + | + |
TM0354 | 49.11 | + | 12.14/15 | + | – |
TM0476 | 44.90 | + | 26.07/22 | + | + |
TM0639 | 45.60 | + | 35.00/30 | + | – |
TM0642 | 29.63 | – | 29.06/23 | + | + |
TM1274 | 27.09 | + | 43.27/38 | + | + |
Characteristics are defined in the text. Legend: +, protein is predicted to possesses the attribute; –, protein is predicted to not possess the attribute.
Proteins are Escherichia coli OmpC, OmpF, PhoE; Salmonella enterica ScrY; and Yersinia enterocolitica ScrY. ORFs are from TM, T. maritima. ‡ Percent β strand content calculated utilizing the multisequence alignment programs STRAP and SCRATCH, respectively.