BIOCHIMICA ET BIOPHYSICA ACTA-PROTEIN STRUCTURE AND MOLECULAR ENZYMOLOGY
|
1994年
/
1208卷
/
02期
关键词:
L-SORBOSE;
PTS;
SOR OPERON;
OPERON SEQUENCE;
(K PNEUMONIAE);
D O I:
10.1016/0167-4838(94)90124-4
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
We have sequenced the complete sor-operon of klebsiella pneumoniae KAY2026. The operon has been mapped at 91 min on the Klebsiella gene-map. It comprises seven open reading frames for the genes sorCDFBAME, which are expressed from the single promotor sorC(p). The gene sorC codes for a regulator protein that positively and negatively regulates the expression of the operon; sorD encodes a D-glucitol-6-phosphate dehydrogenase, the genes sorFBAM encode four proteins of a phosphoenolpyruvate-dependent L-sorbose-phosphotransferase system and sorE, finally, an L-sorbose-1-phosphate-reductase.