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| Content Provider | PubMed Central |
|---|---|
| Author | Dorsey, Caleb W. Beglin, Melanie S. Actis, Luis A. |
| Copyright Year | 2003 |
| Abstract | The Acinetobacter baumannii 19606 prototype strain produces a 78-kDa iron-regulated outer membrane protein immunologically related to FatA, which is required for iron acquisition by the fish pathogen Vibrio anguillarum via the anguibactin-mediated system. This A. baumannii strain also secretes histamine, a biosynthetic precursor of the siderophore anguibactin. In contrast, the A. baumannii 8399 clinical strain isolated in Oregon produces a siderophore and a putative 73-kDa iron-regulated outer membrane (OM73) receptor that are different from those produced by V. anguillarum and A. baumannii 19606. These observations suggest that different A. baumannii clinical isolates express unrelated iron uptake systems. This hypothesis is supported by differences in outer membrane protein profiles among A. baumannii isolates obtained from Oregon and Europe. The 19606 isolate and some European isolates expressed a FatA-like protein, while neither 19606 nor any of the European isolates expressed proteins related to OM73. Some European isolates failed to express FatA- and OM73-like proteins. All but one of the Oregon isolates expressed OM73-like proteins, while none of them contained a FatA-like protein. The presence of these proteins always correlated with the presence of the om73- and fatA-like genes in the cognate strains. While 19606 and a few European isolates produced histamine, none of the Oregon isolates had this capability. Interestingly, one strain each from the Oregon and European isolates did not express any of these products involved in iron acquisition, indicating that they could acquire iron through siderophore-mediated transport systems different from those expressed by the 19606 and 8399 clinical isolates. |
| Related Links | http://dx.doi.org/10.1128/jcm.41.9.4188-4193.2003 |
| Ending Page | 4193 |
| Page Count | 6 |
| Starting Page | 4188 |
| File Format | |
| ISSN | 00951137 |
| e-ISSN | 1098660X |
| Journal | Journal of Clinical Microbiology |
| Issue Number | 9 |
| Volume Number | 41 |
| Language | English |
| Publisher | American Society for Microbiology |
| Publisher Date | 2003-09-01 |
| Access Restriction | Open |
| Rights Holder | American Society for Microbiology |
| Subject Keyword | Microbiology (medical) Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Microbiology (medical) |
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