15 research outputs found
Elongated Polyproline Motifs Facilitate Enamel Evolution through Matrix Subunit Compaction
How does proline-repeat motif length in the proteins of teeth and bones relate to the evolution of vertebrates? Counterintuitively, longer repeat stretches are associated with smaller aggregated subunits within a supramolecular matrix, resulting in enhanced crystal length in mammalian versus amphibian tooth enamel
Highly Divergent Mitochondrial ATP Synthase Complexes in Tetrahymena thermophila
Tetrahymena ATP synthase, an evolutionarily divergent protein complex, has a very unusual structure and protein composition including a unique Fo subunit a and at least 13 proteins with no orthologs outside of the ciliate lineage