FUNCTIONAL ANALYSIS OF FRUCTOSE-1,6-BISPHOSPHATASE ISOZYMES (FBP-I AND FBP-II GENE PRODUCTS) IN CYANOBACTERIA
FUNCTIONAL ANALYSIS OF FRUCTOSE-1,6-BISPHOSPHATASE ISOZYMES (FBP-I AND FBP-II GENE PRODUCTS) IN CYANOBACTERIA
复制标题
DOI:
10.1093/oxfordjournals.pcp.a029536
复制
发表时间:
1999
影响因子:
4.9
通讯作者:
M. Tamoi;T. Takeda;S. Shigeoka
中科院分区:
文献类型:
--
作者:
M. Tamoi;T. Takeda;S. Shigeoka
Synechococcus PCC 7942 contains two fructose-1,6bisphosphatase isozymes (FBPase-I and FBPase-II), while Synechocystis PCC 6803 has only one (FBPase-I) in spite of the occurrence of two FBPase isozyme genes [Tamoi et al. (1998) Biochim. Biophys. Ada 1383: 232]. We now demonstrate that disruption of the gene encoding FBPase-II (fbp-II) with a kanamycin resistance gene cartridge does not affect cell growth, Chi content, or CO2 assimilation in Synechococcus PCC 7942, and disruption of the gene encoding FBPase-I (fbp-I) is a lethal mutation in both cyanobacteria. Accordingly, it is clear that FBPase-I is necessary to sustain photosynthesis and gluconeogenesis in cyanobacteria.