Vertebrate hemoglobin (Hb) and myoglobin (Mb) were among the first proteins whose
structures and sequences were determined over 50 years ago. In the subsequent …

Coelomic fluid surrounds the internal organs of asteroid echinoderms (asteroids, otherwise
known as sea stars or starfish) and plays an essential role in the immune system, as well as …

Bioluminescence relies on the oxidation of a luciferin substrate catalysed by a luciferase
enzyme. Luciferins and luciferases are generic terms used to describe a large variety of …

Background How vascular systems and their respiratory pigments evolved is still debated.
While many animals present a vascular system, hemoglobin exists as a blood pigment only …

The detailed study of arm ossicles, particularly the lateral arm plates, is providing valuable
information in the elucidation of ophiuroid taxonomy. The present study describes in detail …

Background One of our goals for the echinoderm tree of life project (http://echinotol. org) is to
identify orthologs suitable for phylogenetic analysis from next-generation transcriptome data …

For highly divergent sequences, there is often insufficient information to reliably construct
alignments and phylogenetic trees. Since protein structure may be strongly conserved …

Data on temporal (July and September) and interannual variations in the content of several
heavy metals are presented for the body wall, gonad, and gut of the sea cucumber …

Studies on the globin family are continuously revealing insights into the mechanisms of
gene and protein evolution. The rise of a new globin gene type in Pelobatoidea and …

Представлены данные по временны́м (июль и сентябрь) и межгодовым вариациям
содержания ряда тяжелых металлов в стенке тела, гонаде и кишке голотурии …