Outer membrane protein SlpA

UniProtKB accession:  Q9RRB6

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Plays an important role in the structural organization and integrity of the cell envelope, bridging the outer membrane to the peptidoglyan layer (PubMed:16946272, PubMed:26074883, PubMed:35943982). Is a highly abundant molecule in the D.radiodurans cell envelope but is not a fundamental component of the S-layer (PubMed:35943982). Binds the carotenoid deinoxanthin, a strong protective antioxidant specific of this bacterium, and could be part of the first lane of defense against UV radiation, especially under desiccation (PubMed:26909071). Appears to be a nonselective channel (PubMed:32071085). Is able to transport charged amino acids such as Lys, Arg and Glu; the large dimension of the pore points toward the physiological importance of the SDBC complex in assisting and allowing the exchange of substances, including nutrients, with the surrounding environment (PubMed:35577074).