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Article

Unusual ring D fixation by three crucial residues promotes phycoviolobilin formation in the DXCF-type cyanobacteriochrome without the second Cys.

The Biochemical journal - 12 Mar 2021

Fushimi Keiji, Narikawa Rei

Abstract excerpt

Cyanobacteriochromes are linear tetrapyrrole-binding photoreceptors produced by cyanobacteria. Their chromophore-binding GAF domains are categorized into many lineages. Among them, dual Cys-type cyanobacteriochrome GAF domains possessing not only a highly conserved 'first Cys' but also a 'second Cys' are found from multiple lineages. The first Cys stably attaches to C31 of the A-ring, while the second Cys mostly...

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PMID: 33559683
DOI: 10.1042/BCJ20210013

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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