Patiria pectinifera

N. K. Kochetkov and G. P. Smirnova, A disialoglycolipid with two sialic acid residues located in the inner part of the oligosaccharide chain from hepatopancreas of the starfish Patiria pectinifera, Biochim. Biophys. Acta, 759 (1983) 192-198. 

Kicha et al. 644) reported the occurrence of a new substance, aste-rosaponin Pj (960), in the Pacific starfish Patiria pectinifera. This saponin belongs to the group of 24-0-glycosidal steroids, but differed from those encounted previously, because the sugar moiety bears a sulfate residue. The structure of 960 was elucidated by spectroscopic and chemical methods. These latter included solvolysis of 960 to 961 and subsequent conversion by acetylation or methylation to the penta-acetate 962 or hexa-O-methyl derivative 963. Oxidation with CrOa-C5H5N resulted in the triketone 964, oxidation with CrOa-CHaCOOH in the diketone 965. 

Asterosaponine PI Asterina pectinifera, Oreaster reticulatus Patiria pectinifera H H a-OH H 3-OH a-OH H SC-103 Higuchi et al., 1988b Segura de Correa et al., 1985 Kicha et al., 1983... 

Rashkes, Ya.V, Kicha, A.A., Levina, E.V., and Stonik, V.A. (1985) Mass spectra of polyhydroxysteroids of the starfish Patiria pectinifera. Khim. Prir. Soedin., 361-367. 

Korotchenko and coworkers detected PG-like compounds in five starfish from the Sea of Japan Asterias amurensis, Distolasterias nippon, Evasterias r. tabulata, Lysastrosoma anthosticta, and Patina pectinifera [189]. Perry and Epel showed that Pisaster ochraceous homogenates were able to oxidize AA [190]. Early studies on oocyte maturation in starfish suggested that HETE s might play a role [195]. Two compounds, 12- and 15-HETE, were able to induce oocyte maturation. Subsequent work showed that the activity was actually due to 8-HETE (33), which was a minor contaminant of both HETE preparations [196]. The 8R enantiomer of this compound (33) and 8R-HEPE (32) were also isolated from the aqueous extracts of Patiria miniata from the Gulf of California [197],... 

Free sterols, polyhydroxysterols and steroidal glycosides do not seem to be distributed evenly in the organs of starfish. In the species Patiria (= Asterina) pectinifera, it was found that although sterols were present in all parts of the animal, polyhydroxysterols and low-molar-mass glycosides were present only in the stomach and aboral, 27... 

---