Polyphenolic protein
The small family of proteins that are sometimes referred to as polyphenolic proteins are produced by some marine invertebrates like the blue mussel, Mytilus edulis[1] by some algae', and by the polychaete Phragmatopoma californica.[2] These proteins contain a high level of a post-translationally modified—oxidized—form of tyrosine, L-3,4-dihydroxyphenylalanine (levodopa, L-DOPA)[2] as well as the disulfide (oxidized) form of cysteine (cystine).[1] In the zebra mussel (Dreissena polymorpha), two such proteins, Dpfp-1 and Dpfp-2, localize in the juncture between byssus threads and adhesive plaque.[3] The presence of these proteins appear, generally, to contribute to stiffening of the materials functioning as bioadhesives.[4] The presence of the dihydroxyphenylalanine-moiety arises from action of a tyrosine hydroxylase-type of enzyme; in vitro, it has been shown that the proteins can be cross-linked (polymerized) using a mushroom tyrosinase.[5]
References
- 1 2 Rzepecki, Leszek M.; Hansen, Karolyn M.; Waite, J. Herbert (August 1992). "Characterization of a Cystine-Rich Polyphenolic Protein Family from the Blue Mussel Mytilus edulis L.". Biological Bulletin. 183 (1): 123–37. doi:10.2307/1542413. JSTOR 1542413.
- 1 2 Jensen, Rebecca A.; Morse, Daniel E. (1988). "The bioadhesive of Phragmatopoma californica tubes: a silk-like cement containing L-DOPA". Journal of Comparative Physiology B. 158 (3): 317–24. doi:10.1007/BF00695330.
- ↑ Rzepecki, LM; Waite, JH (1993). "The byssus of the zebra mussel, Dreissena polymorpha. II: Structure and polymorphism of byssal polyphenolic protein families". Molecular marine biology and biotechnology. 2 (5): 267–79. PMID 8180628.
- ↑ Rzepecki, LM; Chin, SS; Waite, JH; Lavin, MF (1991). "Molecular diversity of marine glues: Polyphenolic proteins from five mussel species". Molecular marine biology and biotechnology. 1 (1): 78–88. PMID 1845474.
- ↑ Burzio, Luis A; Burzio, Veronica A; Pardo, Joel; Burzio, Luis O (2000). "In vitro polymerization of mussel polyphenolic proteins catalyzed by mushroom tyrosinase". Comparative Biochemistry and Physiology B. 126 (3): 383–9. doi:10.1016/S0305-0491(00)00188-7.
External links
adhesive_protein,_mussel at the US National Library of Medicine Medical Subject Headings (MeSH)