{
  "annotation_id": "81dfb1ad-b5c2-4f46-a5b3-0cfd5fd61b7d",
  "date_created": "2026-03-02T18:01:35.302000Z",
  "date_modified": "2026-03-02T18:01:35.302000Z",
  "file_hash": "0889284261a3d793b752210e5b5371cf2e0a5efe00a556944231690ce714acdd",
  "private": false,
  "record": {
    "abstract": "Upon growth on dinitrogen, the filamentous cyanobacterium Nostoc PCC 7120\ninitiates metabolic and morphological changes. We analyzed the expression of\n1249 genes from major metabolic categories under nitrogen fixing and\nnon-nitrogen fixing growth. The expression data were correlated with potential\ntarget secondary structures, probe GC-content, predicted operon structures, and\nnitrogen content of gene products. Of the selected genes, 494 show a more than\n2-fold difference in the two conditions analyzed. Under nitrogen-fixing\nconditions 465 genes, mainly involved in energy metabolism, photosynthesis,\nrespiration and nitrogen-fixation, were found to be stronger expressed, whereas\n29 genes showed a stronger expression under non-nitrogen fixing conditions.\nAnalysis of the nitrogen content of regulated genes shows that Nostoc PCC 7120\ngrowing on dinitrogen is freed from any constraints to save nitrogen. For the\nfirst time the expression of high light-induced stress proteins (HLIP-family)\nis shown to be linked to the nitrogen availability.",
    "arxiv_id": "q-bio/0604031",
    "authors": [
      "R. Wunschiers",
      "R. Axelsson",
      "P. Lindblad"
    ],
    "categories": [
      "q-bio.GN"
    ],
    "title": "Effects of Growth on Dinitrogen on the Transcriptome and Predicted   Proteome of Nostoc PCC 7120",
    "url": "https://arxiv.org/abs/q-bio/0604031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ae6d024b-9ace-44a5-83fc-83a5b09bbb06",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}