dc.date.accessioned | 2021-11-11T16:07:57Z | |
dc.date.available | 2021-11-11T16:07:57Z | |
dc.date.created | 2021-09-07T20:05:27Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Shoor, Marita Gudim, Ingvild Hersleth, Hans-Petter Hammerstad, Marta . Thioredoxin reductase from Bacillus cereus exhibits distinct reduction and NADPH-binding properties. FEBS Open Bio. 2021, 11(11), 3019-3031 | |
dc.identifier.uri | http://hdl.handle.net/10852/89203 | |
dc.description.abstract | Low molecular weight (low Mr) thioredoxin reductases (TrxRs) are homodimeric NADPH-dependent dithiol flavoenzymes that reduce thioredoxins (Trxs) or Trx-like proteins involved in the activation networks of enzymes, such as the bacterial class Ib ribonucleotide reductase (RNR). During the last few decades, TrxR-like ferredoxin/flavodoxin NADP+ oxidoreductases (FNRs) have been discovered and characterized in several types of bacteria, including those not encoding the canonical plant-type FNR. In Bacillus cereus, a TrxR-like FNR has been shown to reduce the flavodoxin-like protein NrdI in the activation of class Ib RNR. However, some species only encode TrxR, and lack the homologous TrxR-like FNR. Due to the structural similarity between TrxRs and TrxR-like FNRs, as well as variations in their occurrence in different microorganisms, we hypothesized that low Mr TrxR may be able to replace TrxR-like FNR in, for example, the reduction of NrdI. In this study, characterization of TrxR from B. cereus has revealed a weak FNR activity towards NrdI reduction. Additionally, the crystal structure shows that only one out of two binding sites of the B. cereus TrxR homodimer is occupied with NADPH, indicating a possible asymmetric co-substrate binding in TrxR. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Thioredoxin reductase from Bacillus cereus exhibits distinct reduction and NADPH-binding properties | |
dc.type | Journal article | |
dc.creator.author | Shoor, Marita | |
dc.creator.author | Gudim, Ingvild | |
dc.creator.author | Hersleth, Hans-Petter | |
dc.creator.author | Hammerstad, Marta | |
cristin.unitcode | 185,15,29,40 | |
cristin.unitname | Seksjon for biokjemi og molekylærbiologi | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1932180 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=FEBS Open Bio&rft.volume=11&rft.spage=3019&rft.date=2021 | |
dc.identifier.jtitle | FEBS Open Bio | |
dc.identifier.volume | 11 | |
dc.identifier.issue | 11 | |
dc.identifier.startpage | 3019 | |
dc.identifier.endpage | 3031 | |
dc.identifier.doi | https://doi.org/10.1002/2211-5463.13289 | |
dc.identifier.urn | URN:NBN:no-91820 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2211-5463 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/89203/1/2021-Shoor-et-al-FEBSopenbio.pdf | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/231669 | |
dc.relation.project | NFR/301584 | |