Reflectins: The Unusual Proteins of Squid Reflective Tissues-Reference-Cited by-同舟云学术

Reflectins: The Unusual Proteins of Squid Reflective Tissues

Published:2004-01-09 Issue:5655 Volume:303 Page:235-238
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Crookes Wendy J.¹²,Ding Lin-Lin¹²,Huang Qing Ling¹²,Kimbell Jennifer R.¹²,Horwitz Joseph¹²,McFall-Ngai Margaret J.¹²

Affiliation:

1. Kewalo Marine Laboratory, Pacific Biomedical Research Center, University of Hawaii–Manoa, 41 Ahui Street, Honolulu, HI 96813, USA.

2. Jules Stein Eye Institute, University of California–Los Angeles, 100 Stein Plaza, Los Angeles, CA 90095, USA.

Abstract

A family of unusual proteins is deposited in flat, structural platelets in reflective tissues of the squid Euprymna scolopes . These proteins, which we have named reflectins, are encoded by at least six genes in three subfamilies and have no reported homologs outside of squids. Reflectins possess five repeating domains, which are highly conserved among members of the family. The proteins have a very unusual composition, with four relatively rare residues (tyrosine, methionine, arginine, and tryptophan) comprising ∼57% of a reflectin, and several common residues (alanine, isoleucine, leucine, and lysine) occurring in none of the family members. These protein-based reflectors in squids provide a marked example of nanofabrication in animal systems.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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