Biotin repressor stress
WebSep 24, 1999 · The Escherichia coli repressor of biotin biosynthesis (BirA) is an allosteric site-specific DNA-binding protein. BirA catalyzes synthesis of biotinyl-5′-AMP from substrates biotin and ATP and the adenylate serves as the positive allosteric effector in binding of the repressor to the biotin operator sequence. WebJan 1, 2001 · Cooperative association of the Escherichia coli biotin repressor with the biotin operator is allosterically activated by binding of the corepressor, bio-5'-AMP. The corepressor function of...
Biotin repressor stress
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WebJan 31, 2003 · The biotin repressor is an allosterically regulated, site-specific DNA-binding protein. Binding of the small ligand bio-5′-AMP activates repressor dimerization, which is a prerequisite to DNA binding. Multiple disorder-to-order transitions, some of which are known to be important for the functional allosteric response, occur in the vicinity ... WebNov 11, 1991 · Proteins most abundant in S-phase cells were stress associated and transporters plus transferases in agreement with the general phenomenon that binding protein-dependent systems are induced under nutrient limitation as part of hunger response. ... The Escherichia coli biotin repressor is a member of the “winged helix-turn-helix” …
WebMay 15, 1998 · The Escherichia coli repressor of biotin biosynthesis, BirA, binds to a 40 bp operator site (bioO) to repress transcriptional initiation at the two divergent promoters of the biotin biosynthetic operon (Figure 1A; Otsuka & Abelson, 1978). WebFind patient medical information for Stress Formula/Iron/Biotin oral on WebMD …
WebWe also demonstrate that the S. aureus BirA protein is a transcriptional repressor of … WebFeb 1, 1999 · Abstract. Enzymatic attachment of biotin to proteins requires the …
Web2 days ago · We found that the expression of genes related to a lytic phage lifestyle in the phage-plasmid were highly up-regulated after the observation of mutations in the repressor sequence, such as the...
WebNov 15, 2013 · Many biological switches including the stress response [1] and biofilm formation [2] in bacteria and inflammation [3] and development [4] in higher organisms are controlled at the level of protein:protein interactions. In each of these systems, the switch involves swapping of one protein interaction partner for another. daphnia circulatory systemWebAug 1, 2008 · The biotin repressor is an allosterically regulated, site-specific DNA-binding protein. Binding of the small ligand bio-5′-AMP activates repressor dimerization, which is a prerequisite to DNA binding.Multiple disorder-to-order transitions, some of which are known to be important for the functional allosteric response, occur in the vicinity of the ligand … daphnia factoryWebMay 24, 2016 · The paradigm version of BPL is the Escherichia coli BirA that is also a repressor for the biotin biosynthesis pathway. Streptococcus suis, a leading bacterial agent for swine diseases, seems to... daphnia caffeine and alcohol experimentWebSep 25, 2001 · Diphtheria toxin repressor protein (DtxR) is a 226-amino acid residue, iron-dependent transcriptional regulator of genes in Corynebacterium diphtheriae that code for diphtheria toxin and proteins involved in iron uptake and oxidative stress (1, 2).DtxR is the best characterized member of a family of related proteins from primarily Gram-positive … daphnia ff14WebConsist- ent with the presence of the biotin repressor BirA, ... Genomic organization of genes involved in oxidative stress response Figure 9 Genomic organization of genes involved in oxidative ... birthing retreatWebNov 9, 2002 · The Escherichia coli biotin repressor, an allosteric transcriptional … birthing report at nsigtWebMay 15, 2001 · The biotin repressor, BirA, is a critical protein in regulation of biotin retention and biosynthesis in Escherichia coli.Biotin is retained in the cell as a coenzyme that is covalently linked to biotin-dependent carboxylases ().In E. coli this two-step reaction is catalyzed by BirA. The adenylate of biotin is first synthesized from substrates biotin … birthing robe gown