ArticleJournal of molecular modeling2012
Molecular modeling of cytochrome b₅ with a single cytochrome c-like thioether linkage.
Article in Journal of molecular modeling, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 6 citations in OpenAlex.
- Peroxidase Activity of aChemistryOpen · 2017Article
- Insight into the structural stability of wild type and mutants of the tobacco etch virus protease with molecular dynamics simulations.Journal of molecular modeling · 2013Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bovine liver cytochrome b (5) (cyt b (5)), with heme bound noncovalently, has been converted into a cyt c-like protein (cyt b (5) N57C) by constructing a thioether linkage between the heme and the engineered cysteine residue. With no X-ray or NMR structure available, we herein performed a molecular modeling study of cyt b (5) N57C. On the other hand, using amino acid sequence information for a newly discovered member of the cyt b (5) family, domestic silkworm cyt b (5) (DS cyt b (5)), we predicted the protein structure by homology modeling in combination with MD simulation. The modeling structure shows that both Cys57 in cyt b (5) N57C, and Cys56, a naturally occurring cysteine in DS cyt b (5), have suitable orientations to form a thioether bond with the heme 4-vinyl group, as the heme is in orientation A. In addition to providing structural information that was not previously obtained experimentally, these modeling studies provide insight into the formation of cyt c-like thioether linkages in cytochromes, and suggest that c-type cyt b (5) maturation involves a b-type intermediate.
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