Abstract
patA expression is induced 3 to 6 h after nitrogen step-down. We establish that the transcription of patA is under the positive control of NtcA. The patA promoter region shows two conserved NtcA-binding boxes. These NtcA-binding sites and their interaction with NtcA are key elements for patA expression in heterocysts.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Anabaena / genetics
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Anabaena / metabolism*
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Bacterial Proteins / genetics
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Bacterial Proteins / metabolism*
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Binding Sites / genetics
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Binding Sites / physiology
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Gene Expression Regulation, Bacterial / genetics
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Gene Expression Regulation, Bacterial / physiology
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Microscopy, Fluorescence
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Promoter Regions, Genetic / genetics
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Protein Binding / genetics
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Protein Binding / physiology
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Reverse Transcriptase Polymerase Chain Reaction