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. 1985 Dec 9;13(23):8543–8559. doi: 10.1093/nar/13.23.8543

Analysis of cloned cDNA and genomic sequences for phytochrome: complete amino acid sequences for two gene products expressed in etiolated Avena.

H P Hershey, R F Barker, K B Idler, J L Lissemore, P H Quail
PMCID: PMC322151  PMID: 3001642

Abstract

Cloned cDNA and genomic sequences have been analyzed to deduce the amino acid sequence of phytochrome from etiolated Avena. Restriction endonuclease site polymorphism between clones indicates that at least four phytochrome genes are expressed in this tissue. Sequence analysis of two complete and one partial coding region shows approximately 98% homology at both the nucleotide and amino acid levels, with the majority of amino acid changes being conservative. High sequence homology is also found in the 5'-untranslated region but significant divergence occurs in the 3'-untranslated region. The phytochrome polypeptides are 1128 amino acid residues long corresponding to a molecular mass of 125 kdaltons. The known protein sequence at the chromophore attachment site occurs only once in the polypeptide, establishing that phytochrome has a single chromophore per monomer covalently linked to Cys-321. Computer analyses of the amino acid sequences have provided predictions regarding a number of structural features of the phytochrome molecule.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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