More than the sum of their parts: on the evolution of proteins from peptides

Article Abstract:

This article examines the evolutionary process from peptides to proteins, which is an ongoing process with new proteins constantly formed. Research indicates that new proteins form by duplication, mutation and shuffling from preexisting protein domains. Data suggest that the protein domains undergo many ways of folding such as accretion, helix-strand transition, strand invasions, recombination and others.

Germany, Peptides, Proteins, Protein folding, Structure

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Paleogenomics in vertebrates, or the recovery of lost genomes from the mist of time

Article Abstract:

The utility of paleogenomics, an emerging field that advances the understanding of the evolutionary processes of vertebrates, based on cytogenetic data, genome sequences and algorithms, is discussed. An analysis of the information, techniques and observations of five years is presented to recreate the ancestral vertebrate genome structures like DNA sequence, gene order and karotypes.

Genetic aspects, Natural history, Nucleotide sequence, Base sequence, Vertebrates, Genomics

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How to tweak a beak: Molecular techniques for studying the evolution of size and shape in Darwin's finches and other birds

Article Abstract:

A DNA microarray approach is undertaken by using tissues harvested from the Galapagos Islands in order to identify novel genes whose expression correlated with differences in beak anatomy among Darwin's finches. The results have shown a protein called calmodulin, which is a mediator of cellular calcium signaling, as a key determinant of beak length.

Usage, Calmodulin, DNA microarrays

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