Lustrin A Explained
Lustrin A is an insoluble protein used in the production of a nacreous layer in bivalve molluscs.[1] It contributes to the properties of the nacreous layer, imparting resistance to cracking and elasticity.[2] This is accomplished by its structure; it consists of many spring-like units which can expand when the shell is under extensional pressure.[3] Its structure is similar to that of proteins involved in silica deposition in diatoms.[1] It consists of 1428 amino acid residues. Its molecular weight is estimated to be 142 kDa. Its terminus consists of a protease inhibitor, which contributes to its longevity in the molluscan shell matrix.[3]
Notes and References
- 10.1074/jbc.272.51.32472. Molecular Cloning and Characterization of Lustrin A, a Matrix Protein from Shell and Pearl Nacre of Haliotis rufescens. 1997. Shen . X.. Journal of Biological Chemistry. 272. 32472–81. Belcher . A. M.. Hansma . P. K.. Stucky . G. D.. Morse . D. E.. 9405458. 51 . free.
- B.. Degnan . G.. Wörheide. A rapidly evolving secretome builds and patterns a sea shell. 4. BMC Biology. 1676022. 40 . F.. Simpson. Jackson. 2006. 17121673 . D.. McDougall . K.. Green . C.. 10.1186/1741-7007-4-40 . free .
- 10.1016/j.crpv.2004.07.009. Molluscan shell proteins. 2004. Marin . F.. Luquet . G.. Comptes Rendus Palevol. 3. 6–7. 469–492 .