Results 101 to 110 of about 1,262 (192)

Identification of the active site of HetR protease and its requirement for heterocyst differentiation in the cyanobacterium Anabaena sp. strain PCC 7120

, 2000
HetR is a serine-type protease required for heterocyst differentiation in heterocystous cyanobacteria under conditions of nitrogen deprivation. We have identified the active Ser residue of HetR from Anabaena sp.
Huang, Xu, Dong, Yuqing, Zhao, Jindong, Wu, Xiang-Yu   +3 more
core   +1 more source

A proteolytic pathway coordinates cell division and heterocyst differentiation in the cyanobacterium <i>Anabaena</i> sp. PCC 7120. [PDF]

Proc Natl Acad Sci U S A, 2022
Xing WY, Liu J, Zhang JY, Zeng X, Zhang CC.   +4 more
europepmc   +1 more source

HetR homodimer is a DNA-binding protein required for heterocyst differentiation, and the DNA-binding activity is inhibited by PatS

, 2004
HetR plays a key role in regulation of heterocyst differentiation. When the Cys-48 residue of the HetR from Anabaena sp. PCC 7120 was replaced with an Ala residue, the mutant HetR (HetR_C48A) could not dimerize, indicating that HetR
Zhao, JD, Huang, Xu, Dong, Y., Huang, X, Dong, YQ, Zhao, J.   +5 more
core   +1 more source

Expression of hetN during heterocyst differentiation and its inhibition of hetR up-regulation in the cyanobacterium Anabaena sp. PCC 7120

, 2002
The <i>hetN</i> gene plays an important role in heterocyst differentiation and pattern formation. An immunoblotting study showed that the <i>hetN</i> gene in <i>Anabaena</i> sp.
Zhao, JD, Xu Huang, Li, Bin, Huang, Xu, Huang, X, Zhao, Jindong, Jindong Zhao, Li, B, Bin Li   +8 more
core   +1 more source

Mutagenesis of hetR Reveals Amino Acids Necessary for HetR Function in the Heterocystous Cyanobacterium Anabaena sp. Strain PCC 7120 [PDF]

, 2007
HetR is the master regulator of heterocyst differentiation in the filamentous cyanobacterium Anabaena sp. strain PCC 7120. Genetic selection was used to identify 33 amino acid substitutions in HetR that reduced the proportion of cells undergoing ...
Risser, Douglas D., Callahan, Sean M.
core   +1 more source

Inactivation of uptake hydrogenase leads to enhanced and sustained hydrogen production with high nitrogenase activity under high light exposure in the cyanobacterium Anabaena siamensis TISTR 8012

Journal of Biological Engineering, 2012
Background Biohydrogen from cyanobacteria has attracted public interest due to its potential as a renewable energy carrier produced from solar energy and water. Anabaena siamensis TISTR 8012, a novel strain isolated from rice paddy field in Thailand, has
Khetkorn Wanthanee, Lindblad Peter, Incharoensakdi Aran   +2 more
doaj   +1 more source

Modeling Culture Profiles of the Heterocystous N2-fixing Cyanobacterium Anabaenaflos-aquae

, 2006
Heterocyst differentiation is a unique feature of nitrogen-fixing cyanobacteria, potentially important for photobiological hydrogen production. Despite the significant advances in genetic investigation on heterocyst differentiation, there were no ...
Ju, Lu-Kwang
core   +1 more source

J. Appl. Microbiol.

, 2005
Aims: The aim of the present investigation was to study the effects of different inorganic carbon and nitrogen sources on nitrate uptake and heterocyst differentiation in the culture of cyanobacterium Anabaena sp. PCC 7120.
Kang, RJ, Cai, ZL, Ouyang, F, Shi, DJ, Cong, W   +4 more
core   +1 more source

Symbioses between cyanobacterial communities and feather mosses in boreal forests and consequences for dinitrogen fixation [PDF]

, 2013
Feather moss-cyanobacteria associations, although still poorly understood, are recognised as essential for the regulation of nitrogen (N) input into N-limited ecosystems such as boreal forests due to their ability to carry out N2-fixation.
Bay, Guillaume
core  

Identification of the HetR Recognition Sequence Upstream of hetZ in Anabaena sp Strain PCC 7120

, 2012
HetR is the master regulator of heterocyst differentiation in Anabaena sp. strain PCC 7120 and has been found to specifically bind to an inverted-repeat-containing region upstream of hetP, a heterocyst differentiation gene.
Hou, Shengwei, Cai, Yan, Xu, XD (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Hubei, Peoples R China., Xu, Xudong, Du, Ye   +4 more
core   +1 more source