Structures, Organization, and Function of Reflectin Proteins in Dynamically Tunable Reflective Cells.
The reversible assembly of reflectin proteins drives dynamic iridescence in cephalopods. Squid dynamically tune the intensity and colors of iridescence generated by constructive interference from intracellular Bragg reflectors in specialized skin cells called iridocytes. Analysis of the tissue specificity of reflectin subtypes reveals that tunability is correlated with the presence of one specific reflectin sequence. Differential phosphorylation and dephosphorylation of the reflectins in response to activation by acetylcholine, as well as differences in their tissue-specific and subcellular spatial distributions, further support the suggestion of different roles for the different reflectin subtypes.
From the Biomolecular Science and Engineering Program, University of California, Santa Barbara, California 93106-9611, the Institute for Collaborative Biotechnologies, University of California, Santa Barbara, California 93106-5100, and.
Daniel G
DG
DeMartini
the Institute for Collaborative Biotechnologies, University of California, Santa Barbara, California 93106-5100, and.
Michi
M
Izumi
the Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-9610.
Aaron T
AT
Weaver
the Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-9610.
Erica
E
Pandolfi
From the Biomolecular Science and Engineering Program, University of California, Santa Barbara, California 93106-9611, the Institute for Collaborative Biotechnologies, University of California, Santa Barbara, California 93106-5100, and the Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, California 93106-9610 d_morse@lifesci.ucsb.edu.
Daniel E
DE
Morse
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D004247:DNA; D017931:DNA Primers; D049832:Decapodiformes; D007498:Iris / Q000166:cytology / Q000378:metabolism; D008969:Molecular Sequence Data; D010766:Phosphorylation; D016133:Polymerase Chain Reaction; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry* / Q000378:metabolism; D017386:Sequence Homology, Amino Acid
D017931:DNA Primers; D011506:Proteins; D004247:DNA
biomaterials; biophotonics; cell signaling; dynamic color; iridescence; iridocyte; iridophore; mass spectrometry (MS); phosphorylation; protein assembly; protein self-assembly; reflectin