1.B.25.1.2 OprE1 (OprE; OccK8) porin (anaerobically induced). May participate in chromate resistance (Rivera et al., 2008). The high-resolution X-ray structure and electrophysiology highlight a
very narrow pore. However, transport of natural amino acids and antibiotics, among them
ceftazidime, has been demonstrated (Samanta et al. 2018). As in general porins,
the internal electric field favors the translocation of polar molecules
by gainful energy compensation in the central constriction region. The comparatively narrow pore can undergo a
substrate-induced expansion to accommodate relatively large-sized
substrates (Samanta et al. 2018).
|
Accession Number: | Q51510 |
Protein Name: | OprE1 aka OPRE aka PA0291 |
Length: | 460 |
Molecular Weight: | 49667.00 |
Species: | Pseudomonas aeruginosa [287] |
Number of TMSs: | 1 |
Location1 / Topology2 / Orientation3: |
Cell outer membrane1 / Multi-pass membrane protein2 |
Substrate |
chromate(2-) |
---|
1: MKSRKINKSR LALAITAGTL GALAQQAVAA GFIEDSKASL TLRNFYINTD NRNGTASPSK
61: QEEWGQGFIL NYQSGFTQGT VGFGVDALGL LGVRLDGGGR AGKSGLDRQP GTVFPLESNG
121: EPVHDFASLG LTAKAKVSNT EFRYGTLQPK LPVVTYNDGR LLPVTFEGGQ VTSTDLKDFT
181: LVAGQLEHSK GRNSTDNRSL SIAGANGSSA SSRDSNKFYY AGGDYKVNKD LTLQYYYGNL
241: DDFYKQHFLG LIHNWQIGPG VLKTDLRAFD SSSDGKNGSR SGRADGYVSS GYYGSGVTKG
301: EVDNRAFSGL FTYTVSGHSI GAGYQILNGD SDFPFLNRGD GEGSTAYLIT DVQIGKFQRA
361: GERTWQVRYG YDFATVGVPG LTFNTIYLSG DKIKTARGDQ SEWERDISLA YVIPDGTFKG
421: LGFTWKNASF RSGLPAAGSS NNQRDQDENR LIVSYTLPLL