A sulfated alpha-L-fucan from sea cucumber.
A purified sulfated alpha-L-fucan from the sea cucumber body wall was studied, before and after almost complete desulfation, using methylation analysis and NMR spectroscopy. NMR analysis indicates that 2,4-di-O-sulfo-L-fucopyranose and unsubstituted fucopyranose are present in equal proportions, and that 2-O-sulfo-L-fucopyranose is present in twice that proportion. There is some NMR evidence that a regular repeating sequence of four residues comprises most or all of the polysaccharide chain.
Ribeiro
A C
AC
Departamento de Bioquímica, Universidade Federal do Rio de Janeiro, Brazil.
Vieira
R P
RP
Mourão
P A
PA
Mulloy
B
B
D000818:Animals; D002240:Carbohydrate Sequence; D005643:Fucose / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D008969:Molecular Sequence Data; D012616:Sea Cucumbers / Q000737:chemistry*
D005643:Fucose