Protein
Poly(3-hydroxyalkanoate) polymerase subunit PhaE
Organism
Allochromatium vinosum (strain ATCC 17899 / DSM 180 / NBRC 103801 / NCIMB 10441 / D)
Function
Polymerizes D(-)-3-hydroxybutyryl-CoA to create polyhydroxybutyrate (PHB) which consists of thousands of hydroxybutyrate molecules linked end to end (PubMed:7957260). This subunit has no catalytic activity but enhances the activity of PhaC, the catalytic subunit, 100-fold (PubMed:9888824).
Similarity
Belongs to the PHA/PHB synthase family. Type III PhaE subfamily.
Sequence
MSNTNFFNDDWLELQRKYWDNWTDMSRKAMGLDSASSSATTPWEAAIDQWWKAMAPAAPDLSRSFMEKMMEQGKNFFRLADTFAKRADEGNAGNGLELWTKTLEDMQKRFSGSLDDGGNTMQRLMSFWELPLDNWQRMMSSMSPMPGDMLRNMPHEQFKDSLDRALSAPGLGYTREEQSQYQELMRSAMEYQAALQEYTNVYTKLGMKSVEHMGSYIQGVIDSGKTIDSARALYDNWVACCEGAYADEVATPEYARIHGRLVNAQMALKKRMSILVDENLGALNMPTRSELRTLQDRLQETRRENKALRHSLHSLERRVAALAGEEPATKPATALRSPAPAAKAPARRRTTKTNPAD