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Cephalopod Chromatophore Proteomics

ABSTRACT: using the first annotated squid chromatophore proteome together with microscopy, we identified likely biochemical components of this reflective coloration as structural reflectin proteins distributed in cells that completely envelop each chromatocyte. Within the chromatocytes, where the pigment molecules reside in nanostructured granules, we found the lens protein Ω- crystallin.

INSTRUMENT(S): LTQ Orbitrap

ORGANISM(S): Doryteuthis Pealeii

SUBMITTER: Feixia Chu

LAB HEAD: Feixia Chu

PROVIDER: PXD011975 | Pride | 2019-03-05

REPOSITORIES: Pride

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Dynamic pigmentary and structural coloration within cephalopod chromatophore organs.

Williams Thomas L TL Senft Stephen L SL Yeo Jingjie J Martín-Martínez Francisco J FJ Kuzirian Alan M AM Martin Camille A CA DiBona Christopher W CW Chen Chun-Teh CT Dinneen Sean R SR Nguyen Hieu T HT Gomes Conor M CM Rosenthal Joshua J C JJC MacManes Matthew D MD Chu Feixia F Buehler Markus J MJ Hanlon Roger T RT Deravi Leila F LF

Nature communications 20190301 1

Chromatophore organs in cephalopod skin are known to produce ultra-fast changes in appearance for camouflage and communication. Light-scattering pigment granules within chromatocytes have been presumed to be the sole source of coloration in these complex organs. We report the discovery of structural coloration emanating in precise register with expanded pigmented chromatocytes. Concurrently, using an annotated squid chromatophore proteome together with microscopy, we identify a likely biochemica ...[more]

PMID: 30824708

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