Rebuilding ring-type assembly of peroxiredoxin by chemical modification was written by Himiyama, Tomoki;Tsuchiya, Yuko;Yonezawa, Yasushige;Nakamura, Tsutomu. And the article was included in Bioconjugate Chemistry in 2021.Category: bromides-buliding-blocks The following contents are mentioned in the article:
Direct control of the protein quaternary structure (QS) is challenging owing to the complexity of the protein structure. As a protein with a characteristic QS, peroxiredoxin from Aeropyrum pernix K1 (ApPrx) forms a decamer, wherein five dimers associate to form a ring. Here, we disrupted and reconstituted ApPrx QS via amino acid mutations and chem. modifications targeting hot spots for protein assembly. The decameric QS of an ApPrx* mutant, wherein all cysteine residues in wild-type ApPrx were mutated to serine, was destructed to dimers via an F80C mutation. The dimeric ApPrx*F80C mutant was then modified with a small mol. and successfully assembled as a decamer. Structural anal. confirmed that an artificially installed chem. moiety potentially facilitates suitable protein-protein interactions to rebuild a native structure. Rebuilding of dodecamer was also achieved through an addnl. amino acid mutation. This study describes a facile method to regulate the protein assembly state. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Category: bromides-buliding-blocks).
2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. Bromine-containing agents predominate because not only are they more efficient than similar chlorine-containing species, but also the high atomic weight of bromine ensures that it is present in a high mass fraction within most organobromine compounds.Category: bromides-buliding-blocks
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary