Amino acid sequences of two ferredoxins from Phytolacca esculenta. Gene duplication and speciation
Related Experiment Video
Updated: Aug 15, 2026

Profiling Thiol Redox Proteome Using Isotope Tagging Mass Spectrometry
Published on: March 24, 2012
Abstract:
The amino acid sequences of two ferredoxins from Phytolacca esculenta were determined by a combination of solid-phase sequencing and the conventional methods. Ferredoxins I and II were composed of 96 and 98 amino acid residues, respectively, and ferredoxin I showed sequence heterogeneity at two positions. The amino acid sequences of ferredoxins I and II from Phytolacca esculenta were very similar to those of corresponding ferredoxins I and II from Phytolacca americana. Amino acid differences among Phytolacca ferredoxins and other higher plant ferredoxins suggest that duplication of the ferredoxin gene occurred after the divergence of Phytolacca from other higher plants and preceded the separation of two species of Phytolacca.
Related Concept Videos
Gene Evolution - Fast or Slow?
In contrast, regions which code...
Gene Families
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
Protein Families
Evolutionary Relationships through Genome Comparisons
Gene Duplication and Divergence
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are characterized.
Exon Recombination
Exon shuffling follows “splice frame rules.” Each exon has three reading...

