Identification of partially degraded oligomers of 5,6-dihydroxyindole-2-carboxylic acid in Sepia melanin by matrix-assisted laser desorption/ionization mass spectrometry

Rapid Communications in Mass Spectrometry

Volumn 11, Issue 4, 1997, Pages 368-372

  Pezzella, Alessandro ^a   Napolitano, Alessandra ^a   D'Ischia, Marco ^a   Prota, Giuseppe ^a   Seraglia, Roberta ^b   Traldi, Pietro ^b  

^a UNIVERSITY OF NAPLES FEDERICO II   (Italy)

^b CNR   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

CARBOXYLATION; DESORPTION; MASS SPECTROMETRY; MELANIN; MOLECULAR WEIGHT;

DIHYDROXYINDOLE; DIRECT ANALYSIS; IONIC SPECIES; LOW MOLECULAR WEIGHT; MASS DIFFERENCE; MATRIX-ASSISTED LASER DESORPTION IONIZATION MASS SPECTROMETRY; PHYSICAL AND CHEMICAL PROPERTIES; SEPIA OFFICINALIS; STRUCTURAL INVESTIGATION; WEIGHT DIFFERENCE;

OLIGOMERS;

EID: 0030901765     PISSN: 09514198     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1097-0231(19970228)11:4<368::AID-RCM859>3.0.CO;2-E     Document Type: Article

References (21)

1. G. Prota, Melanins and Melanogenesis, Academic Press, San Diego (1992).
2. G. Prota, Fortschr. Chem. Org. Naturst. 64, 93 (1995).
3. (a) M. Piattelli and R. A. Nicolaus, Tetrahedron 15, 66 (1961)
4. (b) M. Piattelli, E. Fattorusso, S. Magno and R. A. Nicolaus, Tetrahedron 18, 941 (1962)
5. (c) M. Piattelli, E. Fattorusso, S. Magno and R. A. Nicolaus, Tetrahedron 19, 2061 (1963).
6. R. A. Nicolaus, Melanins, Hermann, Paris (1968).
7. S. Ito, Biochim. Biophys. Acta 883, 155 (1986).
8. M. Benathan and H. Wyler, Yale J. Biol. Med. 53, 389 (1980).
9. P. Aroca, J. C. Garcia-Borron, F. Solano and J. A. Lozano, Biochim. Biophys. Acta 1035, 266 (1990).
10. M. d'Ischia, A. Palumbo and G. Prota, Tetrahedron Lett. 26, 2801 (1985).
11. M. Karas and F. Hillenkamp, Anal. Chem. 60, 2299 (1988).
12. A. Napolitano, A. Pezzella, G. Prota, R. Seraglia and P. Traldi, Rapid Commun. Mass Spectrom. 10, 204 (1996).
13. A. Napolitano, A. Pezzella, G. Prota, R. Seraglia and P. Traldi, Rapid Commun. Mass Spectrom. 10, 468 (1996).
14. J. D. Benigni and R. L. Minnis, J. Heterocycl. Chem. 2, 387 (1965).
15. A. Napolitano, A. Pezzella, M. R. Vincensi and G. Prota, Tetrahedron 51, 5913 (1995).
16. A. Napolitano, A. Pezzella, M. d'Ischia and G. Prota, Tetrahedron 52, 8775 (1996).
17. P. Palumbo, M. d'Ischia and G. Prota, Tetrahedron 43, 4203 (1987).
18. (a) Y. Sawaki and C. S. Foote, J. Am. Chem. Soc. 105, 5035 (1983)
19. (b) G. Gellerstedt, H-L. Hardell and E-L. Lindfors, Acta Chem. Scand. 34, 669 (1980)
20. (c) T. Matsuura, Tetrahedron 33, 2869 (1977).
21. R. Seraglia, P. Traldi, G. Elli, A. Bertazzo, C. Costa and G. Allegri, Biol. Mass Spectrom. 22, 686 (1993).