| Accession | TIGR02797 |
| Name | exbB |
| Function | tonB-system energizer ExbB |
| Gene Symbol | exbB |
| Trusted Cutoff | 206.20 |
| Domain Trusted Cutoff | 206.20 |
| Noise Cutoff | 194.55 |
| Domain Noise Cutoff | 194.55 |
| Isology Type | equivalog |
| HMM Length | 211 |
| Mainrole Category | Transport and binding proteins |
| Subrole Category | Cations and iron carrying compounds |
| Gene Ontology Term | GO:0015078: hydrogen ion transmembrane transporter activity molecular_function |
| | GO:0015570: energizer of outer membrane receptor-mediated transport activity molecular_function |
| | GO:0016020: membrane cellular_component |
| Author | Haft DH |
| Entry Date | Jan 20 2006 10:26AM |
| Last Modified | Feb 14 2011 3:27PM |
| Comment | This model describes ExbB proteins, part of the MotA/TolQ/ExbB protein family. The paired proteins MotA and MotB, TolQ and TolR, and ExbB and ExbD harness the proton-motive force to drive the flagellar motor, energize the Tol-Pal system, or energize TonB, respectively. Tol-Pal and TonB are both active at the outer membrane. Genomes may have many different TonB-dependent receptors, of which many of those characterized are involved in siderophore transport across the outer membrane. |
| References | RN [1]
RM 12896813
RT Molecular modeling of the bacterial outer membrane receptor energizer, ExbBD/TonB, based on homology with the flagellar motor, MotAB.
RA Zhai YF, Heijne W, Saier MH Jr.
RL Biochim Biophys Acta. 2003 Aug 7;1614(2):201-10. |
| Genome Property | GenProp0543: TonB-dependent transport (HMM) |
