TABLE 3.
General characteristics of the S-layer proteins in L. acidophilus NCFM
| Protein | Gene locus | Gene length (bp) | Predicted mature protein size (amino acids) | Molecular mass of predicted mature protein (kDa) | Predicted pI | % Hydrophobic residuesa | Top BLASTP hit
|
|||
|---|---|---|---|---|---|---|---|---|---|---|
| Protein | GenBank accession no. of ortholog | E-value | Amino acid identityb | |||||||
| SlpA | LBA0169 | 1,335 | 413 | 46 | 9.49 | 47.4 | Surface layer protein (L. helveticus) | CAB46984 | 3e-156 | 329/446 (73) |
| SlpB | LBA0175 | 1,374 | 426 | 47 | 9.45 | 48 | SB protein (L. acidophilus) | CAA61561 | 0.00e + 00 | 449/457 (98) |
| SlpX | LBA0512 | 1,500 | 469 | 51 | 9.43 | 44.1 | Surface layer protein HAP50 (L. acidophilus) | AAF65561 | 4e-127 | 273/506 (53) |
a
Alanine, glycine, isoleucine, leucine, methionine, phenylalanine, proline, tryptophan, tyrosine, and valine.
b
The numbers in parentheses are percentages.