Protein
Norspermidine sensor
Organism
Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)
Function
Acts as a sensor of norspermidine and enhances biofilm formation. When complexed to norspermidine, could interact with the periplasmic portion of MbaA to regulate its enzymatic activity.
Similarity
Belongs to the bacterial solute-binding protein PotD/PotF family.
Sequence
MTNFCNEWVSYSQMIKRFLSLMVLNTVCYQASALELNVYLWEDTIAPSVVEAWHKKTGVSVNLFHFDNDDERSLLMLKSVQLPFDIMVLDNVSAFIFSRQNVFEDLTALPNRANNDPMWLQACGTHAVPYFWGSVGIAYRKSLFDKPPTQWSEVVDIAPAHRGRVGMLKDSVETLLPALYMLNASPITDSIDTLRQAYRLLDAANPHILTYEYVLSYVRSHPQTDNLHMAVSYSGDHYSLNRFFNTQDWDFSVPEGRPYLWVDCMAVNSVSPNTVQAKAFLDFLMKPDIAAINAEYIRAASPNYKARALLPVEHREDLSIYLPEQRLAEGIIDSELSAKNLSLRAKIISSVTYQYEAKP