Variation of xylanosomal subunit composition of Streptomyces olivaceoviridis by nitrogen sources.
Besides affecting the xylanases production, different nitrogen sources present in the media also caused changes in the xylanosomal subunit composition of Streptomyces olivaceoviridis E-86. Four xylanosome fractions, purified from the culture supernatant of S. olivaceoviridis E-86 grown on different nitrogen sources, exhibited high specificity towards different xylans and were composed of different subunits. Thus, S. olivaceoviridis E-86 regulates the expression of xylanase activity and varies the xylanosome composition according to the nitrogen sources possibly through the action of the secreted proteases.
Deng
Wei
W
College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China.
Jiang
Zheng-Qiang
ZQ
Li
Li-Te
LT
Wei
Yun
Y
Shi
Bo
B
Kusakabe
Isao
I
D003470:Culture Media; D009097:Multienzyme Complexes; D009584:Nitrogen / Q000378:metabolism*; D021122:Protein Subunits; D013302:Streptomyces / Q000378:metabolism*; D013379:Substrate Specificity; D014990:Xylans / Q000737:chemistry / Q000378:metabolism*; D014995:Xylosidases / Q000737:chemistry / Q000378:metabolism
D003470:Culture Media; D009097:Multienzyme Complexes; D021122:Protein Subunits; D014990:Xylans; D014995:Xylosidases; D009584:Nitrogen