Chemistry:Bufol

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Bufol is a steroid and/or 'bile alcohol' found in toads and frogs, which is secreted from the gallbladder of certain species of toads, frogs and other animals. In a broad biological sense, bufol can be classified as a lipid, as it is a polyatomic bile alcohol with a steroidal structure.[1][2][3][4][5]

Natural occurrence

Stereoisomers (5α-bufol and 5β-bufol) were found in the gallbladder of the following amphibians:

5α-bufol: Lepidosiren paradoxa, Neoceratodus forsteri, Ptychadena mascareniensis, Hylarana albolabris, Rana plancyi.[1][3][4][5]

5β-bufol: Bufo japonicus, Bufo bufo, Rhinella marina, Sclerophrys regularis, Sclerophrys maculata (Bufo maculatus).[2][3]

References

  1. ↑ 1.0 1.1 Une, M.; Matsumoto, N.; Kihira, K.; Yasuhara, M.; Kuramoto, T.; Hoshita, T. (1980). "Bile salts of frogs: a new higher bile acid, 3 alpha, 7 alpha, 12 alpha, 26-tetrahydroxy-5 beta-cholestanoic acid from the bile Rana plancyi". Journal of Lipid Research 21 (3): 269–276. doi:10.1016/S0022-2275(20)39805-9. ISSN 0022-2275. PMID 7381321. 
  2. ↑ 2.0 2.1 Yoshii, M.; Une, M.; Kihira, K.; Kuramoto, T.; Akizawa, T.; Yoshioka, M.; Butler, V. P.; Hoshita, T. (1994). "Bile salts of the toad, Bufo marinus: characterization of a new unsaturated higher bile acid, 3 alpha,7 alpha,12 alpha,26-tetrahydroxy-5 beta-cholest-23-en-27-oic acid". Journal of Lipid Research 35 (9): 1646–1651. doi:10.1016/S0022-2275(20)41162-9. ISSN 0022-2275. PMID 7806978. 
  3. ↑ 3.0 3.1 3.2 Anderson, I. G.; Haslewood, G. A.; Oldham, R. S.; Amos, B.; Tökés, L. (1974). "A more detailed study of bile salt evolution, including techniques for small-scale identification and their application to amphibian biles". The Biochemical Journal 141 (2): 485–494. doi:10.1042/bj1410485. ISSN 0264-6021. PMID 4218097. 
  4. ↑ 4.0 4.1 Amos, B.; Anderson, I. G.; Haslewood, G. A.; Tökes, L. (1977-02-01). "Bile salts of the lungfishes Lepidosiren, Neoceratodus and Protopterus and those of the coelacanth Latimeria chalumnae Smith". The Biochemical Journal 161 (2): 201–204. doi:10.1042/bj1610201. ISSN 0264-6021. PMID 849257. 
  5. ↑ 5.0 5.1 Anderson, I. G.; Briggs, T.; Haslewood, G. A.; Oldham, R. S.; Schären, H.; Tökés, L. (1979-12-01). "Comparison of the bile salts of frogs with those of their tadpoles. Bile-salt changes during the metamorphosis of Rana Catesbeiana Shaw". The Biochemical Journal 183 (3): 507–511. doi:10.1042/bj1830507. ISSN 0264-6021. PMID 317247. 



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