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The BChl a molecules are depicted in green, the central magnesium atom in red and the protein in grey ("cartoons" representation). Each monomer contains bacteriochlorophylls. The Fenna–Matthews–Olson (FMO) complex is a water-soluble complex and was the first pigment-protein complex (PPC) to be structure analyzed by x-ray spectroscopy. [2]
MMA is a raw material for the manufacture of other methacrylates. These derivatives include ethyl methacrylate (EMA), butyl methacrylate (BMA) and 2-ethyl hexyl methacrylate (2-EHMA). Methacrylic acid (MAA) is used as a chemical intermediate as well as in the manufacture of coating polymers, construction chemicals and textile applications.
RecA is a 38 kilodalton protein essential for the repair and maintenance of DNA in bacteria. [2] Structural and functional homologs to RecA have been found in all kingdoms of life. [3] [4] RecA serves as an archetype for this class of homologous DNA repair proteins. The homologous protein is called RAD51 in eukaryotes and RadA in archaea. [5] [6]
Additionally, the small noncoding RNA (sRNA) expression levels and regulatory properties will be influenced by MS2 tag. [8] Also, by using MS2 as an affinity tag to purify a protein in E. coli bacteria, scientists expressed MS2-MBP, which is an MS2 coat protein carrying mutations fused with maltose-binding proteins .
Initiation of translation in bacteria involves the assembly of the components of the translation system, which are: the two ribosomal subunits (50S and 30S subunits); the mature mRNA to be translated; the tRNA charged with N-formylmethionine (the first amino acid in the nascent peptide); guanosine triphosphate (GTP) as a source of energy, and the three prokaryotic initiation factors IF1, IF2 ...
The regulation of gene expression of hemolysins (such as streptolysin S) is a system repressed in the presence of iron. [20] This ensures that hemolysin is produced only when needed. The regulation of the production of hemolysin in S.aureus (expression of hemolysin) is now possible due to in-vitro mutations that are related to serine ...
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TetR protein family members are mostly transcriptional repressors, meaning that they prevent the expression of certain genes at the DNA level. These proteins can act on genes with various functions including antibiotic resistance, biosynthesis and metabolism, bacterial pathogenesis, and response to cell stress. [citation needed]