Analysis of E. coli K5 capsular polysaccharide heparosan.
Analysis of E. coli K5 capsular polysaccharide heparosan.
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DOI:
10.1007/s00216-010-3679-7
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发表时间:
2011-01
影响因子:
4.3
通讯作者:
Linhardt, Robert J.
中科院分区:
文献类型:
--
作者:
Ly, Mellisa;Wang, Zhenyu;Laremore, Tatiana N.;Zhang, Fuming;Zhong, Weihong;Pu, Dennis;Zagorevski, Dmitri V.;Dordick, Jonathan S.;Linhardt, Robert J.
关键词:
Heparosan is the key precursor for the preparation of bioengineered heparin, a potential replacement for porcine intestinal heparin, an important anticoagulant drug. The molecular weight (MW) distribution of heparosan produced by the fermentation of E. coli K5 was investigated. Large-slab isocratic and mini-slab gradient polyacrylamide gel electrophoresis (PAGE) were used to analyze the MW and polydispersity of heparosan. A preparative method that allowed fractionation by continuous-elution PAGE was used to obtain heparosan MW standards. The MWs of the heparosan standards were determined by electrospray ionization Fourier-transform mass spectrometry (ESI-FT-MS). A ladder of the standards was then used to determine the MW properties of polydisperse heparosan samples. Unbleached and bleached heparosan produced by fermentation of E. coli K5 had similar number-averaged MWs (MN), weight-averaged MWs (MW), and MW ranges of 3,000 to 150,000 Da.
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影响因子:
15
作者:
Zhang, Zhenqing;McCallum, Scott A.;Xie, Jin;Nieto, Lidia;Corzana, Francisco;Jimenez-Barbero, Jesus;Chen, Miao;Liu, Jian;Linhardtt, Robert J.
通讯作者:
Linhardtt, Robert J.
DOI:
10.1073/pnas.0906861106
发表时间:
2009-10-06
影响因子:
11.1
作者:
Guerrini, Marco;Zhang, Zhenqing;Sasisekharan, Ram
通讯作者:
Sasisekharan, Ram
影响因子:
46.9
作者:
Guerrini, Marco;Beccati, Daniela;Sasisekharan, Ram
通讯作者:
Sasisekharan, Ram
影响因子:
3.8
作者:
Zhang, Zhenqing;Li, Boyangzi;Linhardt, Robert J.
通讯作者:
Linhardt, Robert J.
影响因子:
3.8
作者:
EDENS, RE;ALHAKIM, A;LINHARDT, RJ
通讯作者:
LINHARDT, RJ