Related Experiment Video
Updated: Aug 10, 2026

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
Published on: December 16, 2013
The amino acid sequence of the spinach basic cupredoxin plantacyanin
K Mann1, C Eckerskorn, Z Mehrabian
1Max-Planck-Institut für Biochemie, Martinsried, Germany.
Abstract:
We describe the amino acid sequence of plantacyanin isolated from spinach leaves. This small basic copper-binding plant cupredoxin contains 91 amino acids (accession no. S70746) and its theoretical average mass of 9788.2 Da was confirmed by electrospray ionization mass spectrometry. When compared to the sequences of other plant cupredoxins, the most similar homologs were cucumber basic blue protein and stellacyanin from Laquer tree with 44-58% identical residues. Other known plant cupredoxins were significantly less similar which may allow to divide the plant cupredoxins into two subgroups, the single-domain cupredoxins (plantacyanin, cucumber basic blue protein and stellacyanin) and the two-domain, hydroxyproline-containing cupredoxins (cucumber peeling cupredoxin, basic blue protein from Arabidopsis thaliana and horseradish umecyanin).
Related Concept Videos
Amino acids
Protein and Protein Structure
A protein's shape is critical to its function. For example, an enzyme can...
ATP Synthase: Structure
Transgenic Plants
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
Protein Import into the Peroxisomes
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
Amino Acid Biosynthetic Pathways

