Abstract
The 16 petunia Cab genes which have been characterized are all closely related at the nucleotide sequence level and they encode Cab precursor polypeptides which are similar in sequence and length. Here we describe a novel petunia Cab gene which encodes a unique Cab precursor protein. This protein is a member of the smallest class of Cab precursor proteins for which no gene has previously been assigned in petunia or any other species. The features of this Cab precursor protein are that it is shorter by 2-3 amino acids than the formerly characterized Cab precursors, its transit peptide sequence is unrelated, and the mature polypeptide is significantly diverged at the functionally important N terminus from other petunia Cab proteins. Gene structure also discriminates this gene which is the only intron containing Cab gene in petunia genomic DNA.
MeSH Terms
Amino Acid Sequence
Base Sequence
Chlorophyll/genetics
Cloning, Molecular
DNA/metabolism
DNA Restriction Enzymes
Genes
Light-Harvesting Protein Complexes
Molecular Weight
Nucleic Acid Hybridization
Photosynthetic Reaction Center Complex Proteins
Plant Proteins/genetics
Plants/genetics
Protein Biosynthesis
Protein Precursors/genetics
RNA, Messenger/genetics,isolation & purification
Triticum/metabolism
Chemicals
Light-Harvesting Protein Complexes
Photosynthetic Reaction Center Complex Proteins
Plant Proteins
Protein Precursors
RNA, Messenger
Chlorophyll
DNA
DNA Restriction Enzymes
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Stayton M M
Black M
Bedbrook J
Dunsmuir P
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