Protein
Solvent efflux pump periplasmic linker SrpA
Organism
Pseudomonas putida
Function
The periplasmic linker protein component of an organic solvent efflux pump. Involved in export of a number of low log POW compounds including hexane (log POW 3.5), toluene (log POW 2.5) and dimethylphthalate (log POW 2.3). The solvent resistance phenotype has been postulated to depend on the operon expression level.
Similarity
Belongs to the membrane fusion protein (MFP) (TC 8.A.1) family.
Sequence
MRQIRSPRALRVIPLTALMLISGCGEKEQVSSATPPPDVGVYTVRAQALTLTTDLPGRTSAFRVAEVRPQVSGILQKRSFVEGAEVKLGQQLYQIDPRTYEAQLRRAEANRTSAQNLARRYETLLKTKAVSKQQYDDALAAWKQAEADYQVARIDVQYTRVLSPISGRIGRSTVTEGALVTNGQAQSLATVTQLDPIYVDVTQPITKLLGLQKALESGRLQKTGENQAEVSLTLDDGSAYPLPGTLKFSEVSVDPTTGSVTLRAEFPNPNRKLLPGMFVHALLKEGVQNAAILVPQQAISRDTRGVPSVWVVKADNTVESREIQTLRTVGNAWLISNGVTEGERIITEGVQRVRSGIAVNAVEAKNVNLVDGFAATTEASAN