Cancer pagurus

The mandibular organ-inhibiting hormone of the crab Cancer pagurus produces two neurohormones that inhibit the secretion of methyl famesoate, which is thought to function as the juvenile hormone in crustaceans 357... 

Cancer pagurus cuticle can be dispersed in hot, aqueous solutions of lithium thiocyanate and be reprecipitated without separating the chitin and protein components. The stability of the complex under these conditions would suggest the presence of primary bonding. Thus, some ehitin-protein bonding does exist in arthropod cuticle, but its exact nature and its physiological significance or its involvement in chitin biosynthesis (or both) remain uncertain. 

Castberg, T, Torgersen, T, Aasen, J., Aune, T, and Naustvoll, L-J. 2004. Diarrhoetic shellfish poisoning toxins in Cancer pagurus Linnaeus, 1758 (Brachyura, Cancridae) in Norwegian waters. Sarsia, 89(5), 311-317. 

Torgersen, T, Aasen, J., and Aune, T. 2005. Diarrhetic shellfish poisoning by okadaic acid esters from Brown crabs (Cancer pagurus) in Norway. Toxicon 46, 572-578. 

Exposure is mainly through food but also a direct uptake from water is also evident for aquatic organisms. This means that organisms exposed to even moderately elevated cadmium levels will bioaccumulate the element very effectively significantly elevated levels are found, for instance, in kidney and liver tissue from wild herbivorous animals such as the elk (Alces aloes ) and in the hepatopancreas of marine crustaceans such as the lobster (Homarus gammarus) and the crab (Cancer pagurus). 

Procambarus. clarkii Procambarus bouvieri, Carcinus maenas Cancer pagurus Callinectes sapidus Charybdis feriatus Cancer magister Penaeus japonicus Penaeus monodon P. monodon Penaeus vannamei... 

Mandibular organ-inhibiting hormone Canpa MOIH-1 Cancer pagurus... 

Norway Norway November 2005 (Pecten maximus) Crabs (Cancer pagurus) 0.177-0.399 Unknown... 

During the determination (van den Oord et al., 1965) of the structure of emulsifiers (fatty acylsarcosyltaurines) in gastric juice from the crab, Cancer pagurus L., it was necessary to identify dodecenoic acid. The acid had no prominent band at 965 cm S but it did at 720 cm indicating the presence of a cis double bond (Ahlers... 

Fig. 5A -D. Spectra of lipoproteins from hemolymph and ovary of crabs. A Lipoprotein from ovary of crab Cancer pagurus) in 0.2 M phosphate buffer, pH 7. (Zagalsky et al. 1967) B Lipoprotein II (female-specific lipoprotein) isolated from hemolymph of vitellogenic blue crab Callinectes sapidus). Lipoprotein was in 0.05 M TRIS buffer (pH 8.0). (Lee and Puppione 1988). C Ovorverdin from Homarus gammarus in 0.5 M NaCl — 5 mm EDTA (pH 5). (Zagalsky 1985). D Lipoproteins from ovary of scallop, Pecten maximus, in 0.2 M phosphate buffer (pH 7). Free carotenoids were released from the lipoproteins by extraction with acetone. (Zagalsky et al. 1967)...

Poly d(A-T) was isolated from male sex organs of the crab Cancer pagurus. 

Wold, J.P., Kermit, M., and Woll, A. (2010) Rapid nondestructive determination of edible meat content in crabs (Cancer pagurus) by near-infrared imaging spectroscopy. Appl. Spectrosc., 64 (7), 691-699. 

The shells of shellfish consist not only of chitin. In the edible crab Cancer pagurus and the lobster Homarus americanus) the calcified, rigid parts of the exoskeleton also contain a series of proteins that are also found in the noncalcified, flexible regions. Most of these proteins have a molar mass below 20 kDa some of them seem specific to crustaceans but others are also present in some insects (Andersen, 1999). The cuticular proteins of the horseshoe crab [Limulus polyphemus) show similarities with those of other arthropods, in particular those of the spider Araneus diadematus, but their molar masses are lower (7-16 kDa) Dietzel, Andersen, and Hojrup, 2003). 

Andersen, S.O. (1999) Exoskeletal proteins from the crah, Cancer pagurus. Comp. Biochem. Physiol., 123A 203—211. 

The molecules of hemocyanin from Sepia officinalis and Octopus vulgaris at pH 7.8 resemble closely in size and shape the half molecules of H. pomatia hemocyanin. The much smaller molecules of Cancer pagurus hemocyanin have a width of about 80 A and consist of ten subunits located at the edges of a pentalateral prism. These molecules are similar to some of the dissociation products of the larger hemocyanins. 

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