Oligo β-(gluco)mannoside (derived from (gluco)mannan))-specific PTS transporter, GmuABC (YdhNMO). The glucomannan utilization operon (gmuBACDREFG, formerly ydhMNOPQRST) of Bacillus subtilis has been characterized (Sadaie et al. 2008).
Transcription of the operon is induced by konjac glucomannan and
requires the last mannanase gene (gmuG). Cellobiose and mannobiose,
possible degradation products of glucomannan by GmuG, are strong
inducers of transcription. An internal regulatory gene
(gmuR) encodes a repressor of the operon, as disruption of this gene
enhances transcription of the operon in the absence of inducers. The
expression of the glucomannan utilizing operon is thus induced by degraded glucomannan products, and repressed by an internal repressor (Sadaie et al. 2008).
|Protein Name:||PTS system oligo-beta-mannoside-specific EIIA component|
|Species:||Bacillus subtilis (strain 168)  |
|Location1 / Topology2 / Orientation3:
glucan, glucooligosaccharide, cellobiose
1: MEQMKITNLT DEQISFQLIL HSGNARSCII QSLRAYKEGK KDEADALIAK AEQDLSAAHD
61: IHFQMIQKES GGEATAFSLL LMHAEDHLMS TLSMKELVKE MLDLFKTKNI