title: Are structural proteins in insect cuticles dominated by intrinsically disordered regions?
abstract: Fifty years ago it was concluded that the highly elastic cuticular protein, resilin, is devoid of secondary structure and that the peptide chains are randomly coiled and easily and reversibly deformed. These properties indicate that resilin is an intrinsically disordered protein and suggest that also other cuticular proteins may contain disordered regions. Amino acid sequences are now available for cuticular proteins from many insect species, and several programs have been developed to predict the probability for a given protein to contain disordered regions. The present paper describes the results obtained when the predictors are applied to various types of cuticular proteins from several insects. The results suggest that most cuticular proteins contain shorter or longer disordered regions, and the possible functions for such regions are briefly discussed.
authors.affiliation: The Collstrop Foundation, The Royal Danish Academy of Sciences and Letters, H.C. Andersens Boulevard 35, 1553 Copenhagen V, Denmark. soa@royalacademy.dk
authors.forename: Svend Olav
authors.initials: SO
authors.lastname: Andersen
mesh_terms: D000465:Algorithms; D020816:Amino Acid Motifs; D000818:Animals; D004548:Elasticity / Q000502:physiology; D019476:Insect Proteins / Q000737:chemistry / Q000378:metabolism; D007313:Insecta / Q000737:chemistry* / Q000378:metabolism; D008958:Models, Molecular; D017510:Protein Folding; D017433:Protein Structure, Secondary; D017434:Protein Structure, Tertiary; D020539:Sequence Analysis, Protein; D012984:Software
chemical_list: D019476:Insect Proteins; C030951:resilin