Egg jelly coat

Vilela-Silva, A. C., Alves, A. P., Valente, A. P., Vacquier, V. D., and Mourao, P. A. (1999). Structure of the sulfated alpha-L-fucan from the egg jelly coat of the sea urchin Strongylocentrotus franciscanus Patterns of preferential 2-0- and 4-O-sulfation determine sperm cell recognition. Glycobiology 9, 927-933. 

Recently, 0-glycolyl-linked oligo-sialic acid was also identified as a component of glycoproteins associated with the egg jelly coat of sea urchins [4]. Wu s group first reported the assembly of Q -(2-5)-linked dimeric sialic acid by the condensation of sialyl glycolyl acid derivative 186 with 5-amino-sialic acid 187 in the presence of EDCI and HOBt (O Scheme 50) [102]. 

Sulphated L-galactans are known in the egg jelly-coats of echinoderms, of which that of Echinus esculentusisthebesiknown. It consists of chains of 1,3-linked L-galactosyl residues to which sulphate appears to be attached at C-4. How far is it a model for other jelly-coat galactans is not clear. 

Kamerling, J.P., R. Schauer, J.F.G. Vliegenthart, and K. Hotta Identification of the Sialic Acids from the Egg Jelly Coat of the Sea Urchin Pseudocentrotus depressus (Okayama). Hoppe-Seyler s Z. Physiol. Chem. 361, 1511 (1980). 

Tseng, K. Xie, Y. Seeley, J. Hei ick, J. L. Lebrilla, C. B. Profiling with structural elucidation of the neutral and anionic O-linked oligosaccharides in the egg jelly coat of Xenopus laevis by Fourier transform mass spectrometry. Glycoconjugate J. 2001,18, 309 320. 

Kamerling JP, Schauer R, Vliegenthart JF, Hotta K. Identification of the sialic acids from the egg jelly coat of the sea urchin Pseudocentrotus depressus (Okayama). Hoppe-Seylers Zeits-chrift fur Physiologische Chemie 1980 367 1511-1516. 

Fucose-2-S04 Fucan from sea urchin egg jelly coat [67]... 

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