ArticleJournal of biosciences2016
Characterization of a DUF820 family protein Alr3200 of the cyanobacterium
Article in Journal of biosciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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
1 citing paper in PubMed, 4 citations in OpenAlex.
- The SbcC and SbcD homologs of the cyanobacterium Anabaena sp. strain PCC7120 (Alr3988 and All4463) contribute independently to DNA repair.Functional & integrative genomics · 2018Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The hypothetical protein 'Alr3200' of Anabaena sp. strain PCC7120 is highly conserved among cyanobacterial species. It is a member of the DUF820 (Domain of Unknown Function) protein family, and is predicted to have a DNase domain. Biochemical analysis revealed a Mg(II)-dependent DNase activity for Alr3200 with a specific activity of 8.62x104 Kunitz Units (KU) mg -1 protein. Circular dichroism analysis predicted Alr3200 to have approximately 40 percent beta-strands and approximately 9 percent alpha-helical structures. Anabaena PCC7120 inherently expressed Alr3200 at very low levels, and its overexpression had no significant effect on growth of Anabaena under control conditions. However, Analr3200+, the recombinant Anabaena strain overexpressing Alr3200, exhibited zero survival upon exposure to 6 kGy of gamma-radiation, which is the LD50 for wild type Anabaena PCC7120 as well as the vector control recombinant strain, AnpAM. Comparative analysis of the two recombinant Anabaena strains suggested that it is not the accumulated Alr3200 per se, but its possible interactions with the radiation-induced unidentified DNA repair proteins of Anabaena, which hampers DNA repair resulting in radiosensitivity.
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