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Phytochrome B MeSH Descriptor Data 2023


MeSH Heading
Phytochrome B
Tree Number(s)
D12.776.765.675.500
D23.767.712.500
Unique ID
D051939
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D051939
Scope Note
A plant photo regulatory protein that exists in two forms that are reversibly interconvertible by LIGHT. In response to light it moves to the CELL NUCLEUS and regulates transcription of target genes. Phytochrome B plays an important role in shade avoidance and mediates plant de-etiolation in red light.
Entry Term(s)
PhyB Phytochrome
Phytochrome B Protein
Registry Number
136250-22-1
Public MeSH Note
2006; PHYTOCHROME B was indexed under PHOTORECEPTORS & PHYTOCHROME & TRANSCRIPTION FACTORS 1991-2005, & under PLANT PROTEINS 1991-2004
History Note
2006(1991)
Date Established
2006/01/01
Date of Entry
2005/06/30
Phytochrome B Preferred
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