{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T05:38:39Z","timestamp":1790919519188,"version":"4.1.0"},"reference-count":34,"publisher":"American Society for Microbiology","issue":"11","license":[{"start":{"date-parts":[[2006,6,1]],"date-time":"2006-06-01T00:00:00Z","timestamp":1149120000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Bacteriol"],"published-print":{"date-parts":[[2006,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            The\n            <jats:italic>gerA<\/jats:italic>\n            ,\n            <jats:italic>gerB<\/jats:italic>\n            , and\n            <jats:italic>gerK<\/jats:italic>\n            operons, which encode germinant receptors in spores of\n            <jats:italic>Bacillus subtilis<\/jats:italic>\n            , were transcribed only in sporulation, and their mRNA levels peaked initially \u223c3 h before the initiation of accumulation of the spore's dipicolinic acid. After a rapid fall, levels of these mRNAs peaked again \u223c5 h later. In one wild-type strain (PS832),\n            <jats:italic>gerA<\/jats:italic>\n            mRNA was the most abundant, with levels of\n            <jats:italic>gerB<\/jats:italic>\n            and\n            <jats:italic>gerK<\/jats:italic>\n            mRNAs \u223c50% of that of\n            <jats:italic>gerA<\/jats:italic>\n            mRNA, whereas\n            <jats:italic>gerB<\/jats:italic>\n            mRNA was the most abundant in another wild-type strain (PY79). The synthesis of\n            <jats:italic>gerK<\/jats:italic>\n            mRNA in sporulation was abolished by loss of the forespore-specific RNA polymerase sigma factor, \u03c3\n            <jats:sup>G<\/jats:sup>\n            , and induction of \u03c3\n            <jats:sup>G<\/jats:sup>\n            synthesis in vegetative cells led to synthesis of\n            <jats:italic>gerK<\/jats:italic>\n            mRNA. SpoVT, a regulator of \u03c3\n            <jats:sup>G<\/jats:sup>\n            -dependent gene expression, repressed\n            <jats:italic>gerK<\/jats:italic>\n            expression. The\n            <jats:italic>gerK<\/jats:italic>\n            promoter showed sequence similarities to \u03c3\n            <jats:sup>G<\/jats:sup>\n            -dependent promoters, and deletion of elements of this putative promoter abolished\n            <jats:italic>gerK<\/jats:italic>\n            expression in sporulation.\n          <\/jats:p>","DOI":"10.1128\/jb.00265-06","type":"journal-article","created":{"date-parts":[[2006,5,17]],"date-time":"2006-05-17T19:00:28Z","timestamp":1147892428000},"page":"4131-4136","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":15,"title":["Transcription of the\n            <i>Bacillus subtilis gerK<\/i>\n            Operon, Which Encodes a Spore Germinant Receptor, and Comparison with That of Operons Encoding Other Germinant Receptors"],"prefix":"10.1128","volume":"188","author":[{"given":"Takao","family":"Igarashi","sequence":"first","affiliation":[{"name":"Department of Molecular, Microbial, and Structural Biology, University of Connecticut Health Center, Farmington, Connecticut 06030-3305"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Setlow","sequence":"additional","affiliation":[{"name":"Department of Molecular, Microbial, and Structural Biology, University of Connecticut Health Center, Farmington, Connecticut 06030-3305"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1128\/JB.188.1.28-36.2006"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1128\/JB.180.8.2057-2062.1998"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1128\/jb.178.15.4500-4507.1996"},{"key":"e_1_3_2_5_2","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/S0378-1119(98)00172-3","volume":"212","year":"1998","unstructured":"Bagyan, I., M. 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