Table 1.
Protein | Organism | Accession no. | Size, aa | Localization | Function |
---|---|---|---|---|---|
HecB | Erwinia chrysanthemi | gi|1772622 | 558 | OM | Probably HecA secretion |
HpmB | Proteus mirabilis | sp|P16465 | 561 | OM | Activation and secretion of the hemolysin HpmA |
ShlB | Serratia marcescens | sp|P15321 | 557 | OM | Activation and secretion of the hemolysin ShlA |
EthB | Edwardsiella tarda | gi|2244626 | 559 | OM | Activation and secretion of the hemolysin EthA |
HxuB1/2 | Haemophilus influenzae | sp|P45356/sp|P44601 | 565 | OM | Secretion of heme–hemopexin-binding protein HxuA1/2 |
HhdB | Haemophilus ducreyi | gi|1151071 | 532 | OM | Activation and secretion of the hemolysin HhdA |
FhaC | Bordetella pertussis | sp|P35077/pir∥S41526 | 584 | OM | Secretion of filamentous hemagglutinin (FHA) |
HmwB1/2 | Haemophilus influenzae | gi|475772/gi|482842 | 545 | OM | Probably secretion of the adhesin HmwA1/2 |
The nonredundant database was searched with SynToc75 for related proteins by using psi-blast (29). The search converged after five iterations. Pea Toc75, the D15-related proteins, and seven proteins of unknown function are not listed. Databases are gi, GenBank; sp, Swiss-Prot; and pir, Protein Identification Resource. OM, outer membrane.